International Journal of Evidence & Proof 2004 The problem of mistaken identification: some observations on process Andrew Roberts Subject: Criminal evidence. Other related subjects: Criminal procedure Keywords: Criminal evidence; Criminal procedure; Eyewitnesses; Identification; Mistake *INTLJEVIDENCEPROOF 100 Abstract. This article examines the importance of establishing a coherent system of safeguards against the risks of mistaken eyewitness identification. Memories of previously observed events are susceptible to distortion during encounters between a witness and other persons. It is argued that pre-trial procedures conducted under controlled conditions provide the most effective means of averting the risk of error and subsequent miscarriage of justice. However, these are of little value without a system of safeguards that (1) ensures that the procedures are conducted whenever the risk of error arises, (2) provides adequate regulation of what might occur before such procedures are conducted, and (3) ensures adherence to its prescriptions. These considerations provide the basis for a critical evaluation of some aspects of relevant procedure in England and Wales. In a thought-provoking essay, ‘Identification and Misidentification in Legal Processes: Redefining the Problem’,1 William Twining challenged the orthodox view, that the problem of misidentification is something to do with the unreliability of eyewitness testimony in jury trials, as presenting an artificially narrow definition of the problem. Future research and public debate about the problem of identification in legal processes, he claimed ‘would benefit from being set in the context of a comprehensive model of legal processes, and of a clearly articulated, integrated theoretical framework’.2 This would entail divergence from the expository tradition of legal scholarship, the primary concern of which are the rules of evidence,3 and would transcend disciplinary boundaries. The expository approach is introspective, characterised in its most polarised form, by an analysis of problems of evidence that takes the evidential rules as the source *INTLJEVIDENCEPROOF 101 of both the problem and the solution with scant regard to the body of empirical facts lying beyond the corpus of those rules. Twining suggested that an analysis of identification ought to be carried out at a level of abstraction that ‘combines elements of contextual perspectives on legal process and some notions about information processing borrowed from cognitive psychology’. The criminal procedure relating to identification evidence still awaits this kind of attention and analysis. Twining observed that many of those who endeavour to resolve the problem of mistaken identification appear to adopt the view that the solution lies in effecting improvements in the rules concerning the manner in which identification parades are conducted. Carson and Bull4 have suggested that the potential contribution of psychology to the discipline of law lies in encouraging the lawyers to rethink issues and challenge prevailing rules and practice. The relevant processes, both legal and cognitive, are complex and warrant greater attention than can be devoted to them here. This article is a rather ambitious attempt to demonstrate that psychologists' discoveries concerning the functioning of memory suggest the need for a cohesive system of legal safeguards. The principal objective is to demonstrate that a broad contextual evaluation of English procedure dispels any notion that the safeguards it currently affords offer robust protection against the risk of miscarriage of justice. The premise of the arguments developed below lies in the extent to which a witness's memory is susceptible to distortion as a result of encounters with other persons following the witness's observation of events giving rise to criminal proceedings. Memory processes The range of factors that might affect the accuracy of any identification attempted by an eyewitness is substantial. Numerous commentators have formulated taxonomies5 which include characteristics inherent in the witness, such as age,6 respective ethnicity of witness and suspect,7 and degree of physiological arousal *INTLJEVIDENCEPROOF 102 (as might occur when a violent event is witnessed).8 Environmental factors also have the potential to affect accuracy, for example, lighting conditions when the culprit is observed, the length of time that the witness has the culprit in view,9 whether the offence involved the use of a weapon.10 In providing structure to what would otherwise be a mere catalogue of factors, Wells'11 categorisation of factors as either system variables or estimator variables is of considerable importance for the evaluation and development of criminal procedure. Estimator variables describe those factors capable of affecting identification accuracy that have an existence independent of anything that might be done by those responsible for criminal justice system policy, and of the practices pursued by those working in the system. Environmental circumstances, and the physiological characteristics of witness and suspect, fall into this category. In contrast, the term ‘system variable’ describes a phenomenon believed to affect identification accuracy adversely which arises as a consequence of some conduct engaged in by agents (essentially police officers) in the pre-trial process. These include various forms of suggestive conduct engaged in by the agent while following the prescriptions of formal rules or exercising discretion conferred for the purposes of investigation. In the context of estimator variables, so named because they are not controllable and their influence can only be ‘estimated’,12 mitigating the risk of miscarriages of justice requires an awareness of their potentially adverse effect on identification *INTLJEVIDENCEPROOF 103 accuracy. To employ a medical analogy; if we perceive mistaken identification as a disease, which in the criminal justice system we want to eradicate, there are two strains. We are powerless to prevent the ‘estimator strain’, the sources of which are the physical circumstances in which a culprit was observed committing an offence or the physiological characteristics of the actors involved. The most that the criminal justice system can do is to remain vigilant as to its various symptoms and implement an effective screening programme in an attempt to detect possible outbreaks of the disease. The ‘system strain’ of the disease is a rather different matter. While the disease remains difficult to diagnose outbreaks are caused by the practices and procedures followed in the criminal process. It is, therefore, possible to take preventative measures by adopting and adhering to appropriate regimens concerning the treatment of eyewitness identification. Wherever there is interaction between a number of witnesses, or police officers and witnesses, there is a danger that a witness's memory and recollection of relevant events will be distorted. There is a consensus among psychologists that the mind does not operate like a video recording, whereby once events are stored in the memory they can be recollected by accessing the discrete ‘part’ of the memory in which they are stored. Memory processes appear much more complex than this. Researchers have proposed models which differentiate different kinds of memory involving the processing of information between the various modes.13 One manifestation of malfunctioning in this process is the apparent malleability of memory. One study, in which participants observed a stranger whom they were later asked to describe, provides a vivid illustration of the danger of semantic suggestion on witness recall.14 In the study, one group of witnesses were told by the interviewer that the man was a truck driver while another group were told that he was a dancer. Those who were told he was the former estimated his weight to be significantly greater than those who were told he was the latter. Similarly, where interviewers described the stranger as a ‘man’ estimates of his age were significantly higher than when he was referred to as a ‘young man’. As Kohnken has explained, the interviewee who experiences an event is unlikely to be able to perceive and encode all available information.15 Any additional information *INTLJEVIDENCEPROOF 104 acquired from an interviewer might lead the witness to use general knowledge and fall back on social expectations to fill ‘gaps’ in his recollection of events. Perhaps of greater concern is that, where a witness is provided with incorrect information regarding a previously observed event or culprit, it appears that the manner in which information is processed can result in the witness recalling the erroneous information as a fact he observed during the original event.16 In a study conducted by Crombag and others,17 a number of people were interviewed about an incident in which a cargo plane crashed into a block of apartments in Amsterdam. Sixty per cent of the subjects stated that they had seen the plane colliding with the building on television and provided answers to detailed questions about the broadcast material, despite the fact that no one had captured any footage of the crash occurring. The subjects appeared to have pieced together what they heard about the crash from various sources, constructed a composite mental image of events surrounding the disaster and were subsequently confident (and probably convincing) in their claims to have watched it on television. Questions remain as to whether, once a witness's memory has been distorted by the provision of ‘misinformation’ following observation of an event, the unadulterated memory of the original event can be retrieved. The view adopted in some quarters is that some memories undergo irreversible transformations.18 This cognitive frailty might pose a danger of mistaken identification occurring at numerous points in legal proceedings. Any interaction between witness and police officer, or a witness with other witnesses to the same event, provides an opportunity for an exchange of information or a situation in which a witness might feel obliged to make an identification or be encouraged to do so with less caution than might otherwise be the case. This proposition is supported by studies which suggest that misleading information given to a witness influences decisions made during identification procedures and gives rise to an increased risk of misidentification.19 *INTLJEVIDENCEPROOF 105 Further dangers lie in the social pressure and suggestion that flow from a witness's perception of the attitudes, conduct and expectations of other witnesses and the police,20 or the provision of information not perceived by the witness during the original event. The fact that the police arrest a suspect and request a witness to attempt an identification is inherently suggestive. It is reasonable, it is claimed, to expect that a witness will be inclined to act on the inference that the police believe they have the culprit. In such circumstances the witness will probably be less cautious and more willing to make a positive identification. Consequently it is likely that identifications made under such conditions are more susceptible to error.21 The problem might be exacerbated if the witness were to be pressed by police officers to take part in identification procedures following the arrest of a suspect. However, the pressure on a witness to make an identification need not be confined to circumstances in which a suspect has been arrested. Where police officers appear to the witness to be expending considerable effort or exuding particular enthusiasm in their efforts to track down a culprit, the witness may feel considerable social pressure to ‘do his bit’ and make an identification when the police arrest a suspect. If the risk of miscarriages of justice occurring because of mistaken identification is to be reduced, then it is necessary that those who are responsible for policy and developing prescriptive procedures, and those who have responsibility for evaluating the sufficiency of identification evidence for various purposes, are aware of the existence of the two sets of variables (system and estimator), the potentially adverse effect that they might have on accuracy, and are sensitive to the implications for policy and practice. The criminal process In most cases22 the trial is the culmination of a legal process comprising a series of decisions and interactions engaged in by various parties to the proceedings. As Twining notes: … by the time a witness comes to testify at the trial he has typically ‘presented’ at least some of his information on several occasions, for example in informal conversation, in interviews with the police, with one or more lawyers… [t]his is why it is useful to think in terms not merely of witnesses testifying…but of the creating and processing of information.23 *INTLJEVIDENCEPROOF 106 These encounters will not necessarily constitute the one-way flow of information from witness to other parties on matters relating to the relevant event, which is suggested in this passage. Police officers might, variously or cumulatively, have seen the person suspected of committing the offence; spoken to other witnesses who have provided information about the event and offender; formed their own views as to the guilt of the suspect; spoken to other officers who have done either of these things, etc. These activities may well be necessary during the course of an investigation, nevertheless, the potential for cross-pollination of inaccurate information, the drawing of false inferences, and the resultant risk of error is manifest. Nor are the potential risks restricted to encounters between witness and police officers. Conversations between lawyers who might have seen other witness statements, friends and relatives who might have heard rumours about what had happened and who the culprit might be all give rise to danger that subsequent recollection of events will be coloured by information (and misinformation) acquired from other parties. As the process draws out the opportunity for such corruption increases and the task of detecting it becomes more difficult. The trial is a sub-optimal mechanism for inquiring into the reliability of identification evidence. It has long been recognised that the traditional safeguards of crossexamination and witness demeanour are of little utility in assessing reliability. Furthermore, in light of the malleable nature of memory, the effectiveness of scrutinising identification evidence at trial is dependent on the extent to which past events can be accurately recounted by various witnesses. Establishing that encounters occurred between police and witness, and what transpired during them is not particularly problematic where the police are placed under a duty to record events. However, imposing a wide-ranging duty to record what occurs during every encounter between a witness and police officer is neither practicable nor desirable given the burden it would impose on police investigations. Conducting procedures under controlled conditions provides the opportunity for various records to be made by police and those representing the suspect's interests and for an incontrovertible record to be made, for example a video recording of events. In this respect they are capable of providing a ‘snapshot’ of considerable probative value of the reliability of a witness's purported identification of a suspect. They also provide a ‘sterile’ environment, one in which the possibility of bias and suggestion is reduced to a considerable degree, in which we can be satisfied that the identification was made in circumstances which largely minimised the risk of error. If formal procedures provide a reliable snapshot of the accuracy of a witness's identification in relation to the issue of error, what occurs thereafter would appear to be of no significant consequence. *INTLJEVIDENCEPROOF 107 Attention can then be focused, in the period leading up to formal procedures being held, on anything that might have a bearing on reliability. If formal procedures can be conducted within a relatively short period following the witness's observation of the culprit, a number of benefits accrue and possibilities arise. Not only is the witness's memory for events likely to be more accurate, but there are likely to be fewer opportunities for an encounter between the witness and other parties and, as a result, a reduction in the risk of memory contamination or distortion. Moreover, the imposition of a strict duty to conduct procedures at the earliest opportunity might render the imposition of a duty to record events during this period less burdensome. Of course, this duty would have to be a variable one as there are likely to be circumstances beyond the control of the police which result in long delays in conducting procedure, for example those in which the suspect evades detection or refuses to cooperate with attempts to conduct procedures. So to what extent does English procedure address the concerns and implement the measures considered above? Pre-trial procedure in England and Wales The pre-trial procedure concerning eyewitness identification in England and Wales is largely contained in Code D of the Codes of Practice, issued by the Secretary of State in fulfilling the duty imposed by s. 66 of the Police and Criminal Evidence Act 1984. The Code consists of three broad sets of provisions: 1. prescribing how procedures for procuring eyewitness identifications under controlled conditions (formal procedures) are to be conducted; 2. setting out when formal procedures are to be held (i.e. the circumstances in which the police are required to hold them); and 3. a set of provisions regulating the way in which identification evidence should be procured (i.e. by ‘street identifications’, discussed below) before any obligation to hold formal procedures arise. The Code imposes a duty on the police ‘in the interests of fairness to suspects and witnesses’ to hold procedures as soon as practicable.24 The video identification procedure enjoys primacy in the hierarchy of formal procedures25 established by *INTLJEVIDENCEPROOF 108 the Code. This procedure involves the use of moving images of the suspect in a compilation of images including those of at least eight other people who ‘resemble the suspect in age, height, general appearance and position in life’.26 Code D largely nullifies the threat of suggestion arising during formal procedures. It also imposes various recording requirements. In respect of the formal procedures, the officer conducting the procedure must ensure that witnesses are not able to communicate with each other about the case or overhear a witness who has already taken part in the procedure.27 The officer is prohibited from discussing the composition of the video with the witness28 or the outcome of an attempt at identification by another witness.29 Only one witness at a time is permitted to take part in a procedure.30 Before any attempt at an identification, the officer conducting the procedure is required to instruct the witness that the person seen committing the offence may, or may not, appear in the procedure and if the witness cannot make a positive identification he should say so.31 If a witness has previously viewed any photograph, or computerised/artist's impression, he is not to be reminded of doing so,32 and in any case the witness is to be asked after taking part in the procedure whether he has seen any broadcast of published images or descriptions of individuals suspected of committing the offence.33 There is a duty to record a multiplicity of facts including (1) the first description of the culprit provided by the witness,34 (2) the grounds of any objection by the suspect to the proposed procedures and, if necessary, the reasons why it was not possible to overcome the grounds of the objection,35 (3) anything said by the witness about any identifications or the conduct of the procedure.36 Furthermore, there is a requirement that the conduct of the procedure itself be video-recorded.37 The provisions of the Code concerning how procedures are to be conducted exhibit a degree of sophistication that is probably unparalleled in the criminal procedure of any other common law jurisdiction. In 1999, following a study concerning a *INTLJEVIDENCEPROOF 109 number cases in which DNA evidence had been used to exonerate individuals convicted primarily on the basis of eyewitness testimony,38 the Office of Justice Programs of the US Department of Justice convened a technical working group comprising police officers, legal practitioners and researchers from the field of psychology. The group recognised that in the past, ‘procedures ha[d] not integrated the growing body of psychological knowledge regarding eyewitness evidence with the practical demands of day-to-day law enforcement’.39 Reviewing the recommendations contained in the guide, Eyewitness Evidence: A Guide for Law Enforcement,40 that was produced by the working group, one commentator ventured that with the exception of two of the recommendations41 ‘existing regulations on identification in England and Wales either anticipate these proposed rules or provide safeguards which go beyond their very modest proposals’.42 Notwithstanding such plaudits, there is a danger of adopting too narrow a view in evaluating existing safeguards, the adequacy of which can only be properly evaluated in the context of the process as a whole. It has been argued here that diagnosing mistaken identification becomes increasingly difficult as the legal process draws out. The most effective means of tackling this problem lies in the pre-trial procedures conducted under controlled conditions that are set out in Code D. Unfortunately, the potency of these procedures is undermined on a number of counts. The provisions concerning how the procedures are to be conducted, display an admirable degree of sensitivity to the findings of empirical research. However, there is little point in expending great effort in devising sophisticated diagnostic procedures of intricate detail without devoting similar efforts to legislating carefully for their application and enforcing adherence to the scheme. Similarly, the benefits of conducting procedures under controlled conditions might be undermined if insufficient attention is paid to regulating what happens in the process prior to any question of these being conducted. It is to these problems that we now turn. *INTLJEVIDENCEPROOF 110 Street identifications The duty to conduct the formal procedures prescribed in Code D is triggered once the police have a ‘known suspect’; that is, that the police have sufficient information to justify the arrest of a person for involvement in the relevant offence.43 The Code provides some guidance on the steps that may be taken where there is no ‘known suspect’. Street identifications typically occur shortly after the event during which the witness has observed the culprit. Where the police response is swift there exists a possibility that the culprit could be found in the locality. A street identification might arise where the witness, having been taken around the area, purports to identify the culprit among those passing by. It might also occur in circumstances in which officers, other than those who are in the company of the witness, happen across someone who resembles the person described by the witness. If the specificity of the description provided by the witness is such that the likelihood of there being more than one person bearing a resemblance in the vicinity is remote, there might be grounds for arrest on the basis of description alone. However, where the description is more general, the officers might reasonably take the view that an arrest could not be justified without the witness purporting to identify him as the offender. In such circumstances an improptu confrontation would be arranged between witness and suspect for this purpose. The previous version of the Code (1995) contained inadequate guidance on the procedures to be followed in attempting to procure a street identification.44 The latest version (2003) offers some elaboration, requiring the police to make a detailed record of events as soon as practicable, including, (1) details of the location in which any identification took place (2) how it was made (3) the prevailing conditions, and (4) anything said or done by the witness regarding the identification.45 Where there are several witnesses it requires them to be kept separate and, where practicable, taken to view the suspect independently.46 If one of the witnesses identifies the suspect then formal identification procedures have to be adopted in respect of the witnesses who have not had an opportunity to observe the suspect.47 *INTLJEVIDENCEPROOF 111 As noted, arranging for a witness to attempt to identify a person ‘detained’ by the police is an inherently suggestive procedure and there have been calls from the police for greater guidance on the procedure to be followed in order to mitigate suggestiveness and avert the risk of any evidence being excluded.48 In circumstances in which a person has been stopped by the police, all possible steps ought to be taken to avoid giving the witness the impression either that the person stopped is under arrest or is subject to such a degree of control by the police that he must be strongly suspected by them to have committed the relevant offence. Where practicable, officers standing with a detained suspect ought to be in plain clothes and steps should be taken to ensure that uniformed officers and marked police vehicles are not in the immediate vicinity. Furthermore, where a suspect has been detained but it is asserted by the police that in the absence of a street identification by the witness there would be insufficient grounds to make an arrest, there is no requirement (equivalent to those that exist in respect of the formal procedures) to warn the witness that the person that they are about to see may or may not be the person seen a short time before and that if he cannot make a positive identification he should say so. Given the particularly suggestive nature of these encounters there is a case for issuing an even more emphatic warning.49 It must be appreciated that police officers required to carry out street identifications are placed in an invidious position. The exigency of establishing, for investigative purposes, whether those present at the scene were involved in the offence must be tempered by precautions taken to ensure the reliability of any identification. It has been pointed out that this demands a measure of detached reflection.50 In this respect the provision of adequate guidance would appear to be particularly important. The most recent version of the Code enjoins the police to ‘follow the principles applicable to the formal procedures set out in the Code as far as possible’.51 Implicit in this direction is that the guidance that is *INTLJEVIDENCEPROOF 112 provided is less comprehensive than it ought to be. It is unreasonable to expect officers, who in the very early stages of investigation are required to take prompt and decisive action, to ensure that the steps they take are grounded on principles that must distilled from various provisions of a Code of some length and complexity. The regimen established in Code D concerning the steps that the police ought to take in these circumstances is inadequate and it is submitted that such encounters are attended by a significant risk of an outbreak of the system strain of the misidentification disease. Whether holding formal procedures following a street identification is effective in screening for unreliable street identifications made by witnesses has proved a rather vexed issue for the English courts52 and one that will not be considered further here. Diminishing due process: the growing influence of crime control values Recent development of Code D is consistent with a general trend that some commentators have identified in the evolution of the criminal procedure comprised in the Police and Criminal Evidence Act 1984 and the Codes of Practice issued under the Act. Sanders and Young53 have argued that the Act was introduced at a time when criminal justice was steadily becoming more illiberal in line with a general drift towards a ‘law and order’ society54 and was seen as being necessary to deal with discontent and disorder created within large disadvantaged sections of the community.55 Against this backdrop they suggest that PACE could not have been intended to inhibit the ability of the police to deal with crime and disorder. Though subject to some criticism on the grounds that they represent an oversimplification of what is, in fact, a complex structure,56 Packer's crime control and due process models of criminal justice remain useful evaluative concepts.57 Briefly, the emphasis of crime control is on achieving a high rate of apprehension and conviction of offenders. In order to achieve this, a premium is put on efficiency in terms of speed, which depends on informality. It is assumed that the police will exercise judgment to filter out innocent suspects at an early stage of the process, and those who are probably guilty pass quickly through the remaining *INTLJEVIDENCEPROOF 113 stages of the process, in this respect it is a managerial model. If there is confidence in the reliability of informal fact-finding in the early stages of the criminal process, the remaining stages can be performed relatively perfunctorily. The due process model is the procedural antithesis of crime control. Its premise is that no such confidence can be placed in informal nonadjudicative fact-finding. It is susceptible to error and demands the prevention and elimination of mistakes to the extent possible. The process exists as much to protect the factually innocent as to convict the factually guilty and efficiency in terms of throughput of cases must be tempered by measures that reduce the risk of error. During the period to which their observations are related, Sanders and Young claimed that, although at every level of criminal justice system due process and crime control values seemed ‘intertwined often in contradictory ways’, it appeared that the conflicts were gradually being resolved by a movement in a crime control direction.58 The first version of the Code (1986) placed the police under a duty to hold a parade whenever the suspect made a request that one be held.59 The second revision (1995) imposed a duty to conduct procedures whenever the suspect disputed identification and consented to procedures being held, irrespective of whether or not the suspect requested that they be conducted.60 This version of the Code might be described as paternalistic and can be viewed as the high watermark of procedural due process. The most recent revision of the Codes of Practice (2003) represent an extension of inquisitorial powers that have been conferred on the police in recent years with ‘the accused … increasingly seen as the subject of a police inquiry, … the product of which is available for use by the prosecution for adversarial purposes’.61 The changes effected in Code D bear many of the hallmarks of Packer's crime control model. Many of the amendments were previewed in temporary modifications to the Code issued in 2002.62 These were accompanied by a letter explaining that the changes had been made with the objective of speeding up the process: It is becoming increasingly apparent that problems in arranging identification parades within a reasonable period of time have *INTLJEVIDENCEPROOF 114 contributed significantly to delays in processing cases and such delays can impact upon the quality of evidence and compromise the whole process of justice. Ministers are understandably concerned and want to take immediate measures to tackle these problems.63 With regard to the assertion that recent reform of Code D is firmly grounded in crime control values, this statement might be seen as ambivalent if viewed in isolation. Its references to reducing delay, or in other words increasing efficiency in terms of speed (crime control values), are offset by a reference to improving the ‘quality of evidence’, which presumably means ensuring that reliable identification evidence is obtained (a due process value, of course). However, under the current version of the Code, the police may decline to hold procedures where doing so would ‘serve no useful purpose in proving or disproving whether the suspect was involved in committing the offence’. This casts the police in the role of arbiter of whether the objective of adjudicative accuracy at a later stage in the proceedings would be furthered by holding an identification procedure. The drafters of the Code have turned away from the imposition of a procedural burden imposed for the purpose of reducing the risk of error, to a managerial process in which the police are given considerable discretion to dispense with a burdensome and time-consuming procedural hurdle. The merits and implications of this development cannot be considered at length here,64 but worthy of note is that this involves the police in a speculative, probabilistic exercise: whether the police are best equipped to undertake such an exercise is something we might reasonably question. The changes implemented in the most recent revision of Code D (2003) might be a precursor to a period of rapid and significant growth in the influence of crime control values in shaping the contours of English criminal procedure. In 2002, the Home Office and Cabinet Office undertook a review of the Police and Criminal Evidence Act and the Codes of Practice. Its terms of reference were to identify changes in procedure that could (1) simplify police procedures, (2) reduce procedural or administrative burdens on the police; (3) save police resources, and (4) speed up the process of justice.65 In the Report of the Review, which was *INTLJEVIDENCEPROOF 115 the subject of vehement criticism,66 it was suggested that the Codes of Practice ‘could be given a structure based on outcome rather than process, leaving the police with more scope to use their professional judgment’.67 The congruence of this suggestion and the notion of ‘efficiency’ expounded in Packer's paradigm crime control model is both glaring and unsurprising, given that the Review's terms of reference amounted to an agenda for reform driven by the values underlying the model. Procedural due process requirements provide a means of ensuring the protection of a suspect's fundamental interests. If one rejects as illusory the idea that it is possible to ‘balance’ the competing value systems68 in some sort of equilibrium, then one must also accept that there is a danger that any shift in emphasis towards the crime control values of procedural informality in the guise of reducing procedural and administrative ‘burdens’ can only be achieved by some diminution in protection against wrongful conviction (or least a significant risk that such protection will be eroded). Policing adherence to the pre-trial regulatory regime Atomistic evaluation of the adequacy of safeguards against the risk of mistaken identification is of limited value. It has been argued above that pre-trial procedures which ensure that identifications are procured under conditions that minimise the risk of error are the most effective safeguards that we have at our disposal. If pre-trial procedure provides the most effective available means of guarding against the risk of mistaken identification, then once its prescriptions are developed to a satisfactory state, their importance ought to be reflected in the means of ensuring compliance with them. In an article that appeared in this journal, Ian McKenzie suggested that guidance recently issued to police officers in the United States69 would be of limited effect in the absence of sanctions for non-compliance. Code D was used as a comparator in respect of which it was claimed that a breach might be followed by a number of sanctions. It was asserted that any police officer responsible for a breach might be subjected to disciplinary proceedings, that any breach might be admissible in criminal or civil proceedings *INTLJEVIDENCEPROOF 116 and that a serious breach would ‘unfailingly’ lead to evidence being excluded. The position in English law might not be as straightforward as that which McKenzie appears to set out. Although s. 67(8) of PACE originally provided that an officer would be liable to disciplinary proceedings for any breach of the Codes of Practice, this provision was repealed by s. 37 of the Police and Magistrates' Courts Act 1994.70 As for the threat that breaches of the Codes of Practice might be admissible in evidence in subsequent criminal or civil proceedings, s. 67(10) of PACE makes clear that a breach of the Codes will not of itself render the officer who commits the breach liable to criminal or civil proceedings. In the context of Code D, it is not at all obvious how evidence of a breach might be relevant to future criminal proceedings against an officer.71 Moreover, beyond the possibility that a breach of the Code's provisions concerning covert identification procedures giving rise to a breach of Article 8 of the European Convention on Human Rights (the right to respect for private and family life) might result in damages being awarded, it is difficult to envisage circumstances in which a breach of Code D might give rise to an actionable tort. This leaves the claim that ‘serious breaches will unfailingly’ lead to evidence being excluded.72 The provisions of Code D that set out how formal procedures conditions are to be carried out are admirably clear and detailed. Its provisions concerning when these procedures ought to be held are vague, and those concerning street identifications are inadequate. No one has yet undertaken a thorough review of appeal cases involving submissions that evidence of identification ought to have been excluded following some breach of the Code. However, a cursory review of recent cases suggests that the circumstances surrounding the conduct of formal procedures are few and that the greater proportion concern the reliability of street identifications73 and the failure of the police to conduct formal procedures.74 In respect of the exclusion of evidence of street identifications, the courts, recognising the difficulties faced by the police in these circumstances, appear *INTLJEVIDENCEPROOF 117 reluctant to find a breach of the Code's provisions. Even where such a breach is found identifications conducted under what appear to be the most suggestive of circumstances will not necessarily be excluded. It is not unusual for the appellate courts merely to recite factors in the circumstances surrounding an identification before declaring that the identification of the defendant was untainted or free of the risk of unreliability. Generally no comment is made on whether the factors stated have been considered relevant to the issue of reliability, whether or not they have been taken to be indicative of reliability or unreliability, and the weight that has been accorded to them. For example, in R v Williams,75 a case recently heard by the Court of Appeal, a woman waiting at a bus stop became the victim of an attempted robbery during which the culprit struck up a conversation which became more menacing and culminated with a demand for cash and jewellery and a threat to stab her with a hypodermic needle. She managed to escape and call the police. She provided a description by telephone and then went to the house of a relative. That description was of a clean-shaven man with a London accent wearing black or dark blue trousers, a black jacket with black zip and brown shoes. The police making their way to the scene saw and gave chase to a man who was eventually detained on the roof of a factory. This man spoke with a distinctly different Glasgow accent, had two to three days stubble on his face, was wearing black trousers and a black jacket which had a brass zip, and black, not brown, shoes. The officers who detained the suspect were told of the culprit's threat to stab the victim with a hypodermic needle. As a result he was handcuffed. The victim was driven to a place where she saw the handcuffed suspect standing by a police car surrounded by police officers. She observed him from a distance of about 10 metres and stated that she was positive that he was the culprit. The court accepted that there had been a breach of the Code. It ‘mattered not’ whether this was because the police had a ‘known suspect’, in which case formal procedures ought to have been held, or that they had breached the provision stating that ‘care must be taken not to direct the witness's attention to any individual unless, taking into account all the circumstances, this cannot be avoided’.76 The court acknowledged the suggestiveness of the procedures adopted, stating that ‘a clearer way of pointing out to her who it was that the police sought her to identify could not have been imagined’.77 Notwithstanding this, it was held that the trial judge's decision not to exclude the evidence was correct and the conviction was safe. *INTLJEVIDENCEPROOF 118 This case, in which the prosecution case rested on identification evidence of questionable reliability following breaches of the Code, is not atypical. It is suggested that a thorough review of the authorities would not reveal that what might be thought of as ‘serious’ breaches of the Code ‘unfailingly’ lead to the exclusion of evidence. The basis of exclusion is the effect that the evidence on which the prosecution seek to rely would have on the fairness of the proceedings. The problems of accurately reconstructing past events to establish whether witnesses recollections have been distorted by suggestive conduct have been alluded to above. However, Williams illustrates that even evidence obtained in breach of Code D, in circumstances that are clearly suggestive, which are attended by a high risk of error, will not necessarily be excluded. Although exclusion for any breach of the Code, however minor, is not advocated here,78 decisions not to exclude evidence in circumstances such as those in Williams indicate an insensitivity to importance of pre-trial procedures in reducing the risk of mistaken identification. Moreover, if repeated such decisions might have an insidious effect on police compliance with the provisions of the Code. The Court of Appeal in R v Forbes79 stated explicitly that the s. 78 discretion should not be exercised as a means of disciplining the police for failing to hold a formal procedure.80 However, in absence of using the discretion for this purpose, there is no effective sanction attached to a breach. The significance of this, as Schauer explains, is that the strength of any regulatory provision lies in the conditions surrounding its applicability, acceptance and performance.81 In other words its strength comes from the sanctions that attach to any violation of it. If the police perceive that the courts usually allow the prosecution to adduce identification evidence obtained in breach of the Code the option of non-compliance becomes more available and attractive. Why should they spend the time and effort necessary to comply with the provisions if it is likely that no adverse consequences will flow from any breach? Salembier observes; ‘In such circumstances a participant's actions cease to be guided by the rules and instead become dependent on its knowledge of enforcement proclivities.’82 The result is an undermining of the regulatory regime. *INTLJEVIDENCEPROOF 119 It is necessary to add one significant caveat. The greater any trend towards replacing the Code's bright-line or hard-edged rules with provisions that confer on the police wider scope to use their professional judgment, the less relevant any consideration of enforcing compliance with the Code will become. Enforcing compliance with the provisions of the Code is a worthwhile pursuit only where following them serves to improve the chances of securing reliable witness identifications. It was suggested earlier that this is objective is more likely to be met through issuing prescriptions to the police than the conferring discretion upon them. Conclusion It is important that we should avoid the seductive notion that because considerable efforts have gone into developing some aspects of pre-trial procedure that our response to the problem of mistaken identification is satisfactory and miscarriages of justice are now a remote possibility. The nature of memory illustrates the importance of the regulation of pre-trial procedure, particularly at an early stage of the investigative process. It has been suggested above that identification procedures conducted under controlled procedures represent the most effective means of safeguarding against the risk of miscarriages of justice resulting from mistaken identifications. However, their effectiveness can be undermined by inadequate regulation of events prior to the formal procedure. While recent reform of English procedure has provided greater regulation of what might occur prior to formal identification procedures, the source of that regulation, Code D, implies that what is provided remains inadequate. The Code provides for admirable formal identification procedures that appear sensitive to the empirical findings of psychologists and where employed are likely to reduce significantly the risk of mistaken identification. However, changes to the provisions regulating when such procedures must be held simply gives rise to an increased risk at another point of the process. The importance of pre-trial procedure as a safeguard requires that departures from it be taken seriously. Unfortunately, the position in England and Wales is that the response of the Court of Appeal to such occurrences is at best ambivalent. Viewed from a broad perspective, the spectre identification remains. of miscarriage of justice resulting from mistaken I am indebted to David Ormerod and Diane Birch for their insightful comments on earlier drafts of this work. I remain solely responsible for errors and deficiencies. E. & P. 2004, 8(2), 100-119 1. W. Twining, Rethinking Evidence: Exploratory Essays (Northwestern University Press: Evanston, IL, 1994) (first published in 1990 by Basil Blackwell Ltd). 2. Ibid. at 153. 3. Ibid. at 156. 4. D. Carson and R. Bull, ‘Psychology and Law: Future Directions’ in R. Bull and D. Carson (eds), Handbook of Psychology in Legal Contexts, 1st edn (Wiley: Chichester, 1995) 646. 5. See generally, P. Ainsworth, Psychology, Law and Eyewitness Testimony (Wiley: Chichester, 1998) 35-48; A. Kapardis, Psychology and Law, 2nd edn (Cambridge University Press: Cambridge, 2003) 36-47; B. Cutler and S. Penrod, Mistaken Identification: The Eyewitness, Psychology, and the Law (Cambridge University Press: Cambridge, 1995) 79-136. 6. It appears that identification accuracy is poorest among the relatively young and older witnesses. The findings of a number of studies indicate a significant decline in the performance of those aged 60+, see e.g. T. O' Rourke, S. Penrod, B. Cutler and T. Stuve, ‘The External Validity of Eyewitness Identification Research: Generalising Across Subject Populations’ (1989) 13 Law and Human Behavior 385. 7. Studies indicate greater accuracy where witness and subject are of the same ethnic appearance; see R. Bothwell, J. Brigham and R. Malpass, ‘Cross-Racial Identification’ (1989) 15 Personality and Social Psychology Bulletin 19; G. Wells and E. Olsen, ‘The Other-Race Effect in Eyewitness Identification: What Can We Do About It?’ (2001) 7 Psychology, Public Policy and Law 230. For analysis of US procedural safeguards in this respect, see R. Natarajan, ‘Racialized Memory and Reliability: Due Process Applied to Cross-Racial Eyewitness Identifications’ (2002) 78 New York University Law Review 1821; and in England and Wales, see T. Valentine, N. Harris, A. Colom Piera and S. Darling (2003), ‘Are Police Video Identifications Fair to AfricanCaribbean Suspects?’ (2003) 17 Applied Cognitive Psychology 459. 8. Although there have been conflicting findings there is evidence that high levels of stress experienced during observation of an event can have an adverse effect on memory, see generally Kapardis, above n. 5 at 40-4. 9. Kapardis, above n. 5 at 38, has cautioned against the common-sense assumption that the identification accuracy is likely to increase in line with duration of observation on the grounds of selective attention. It appears that witnesses who experience stress during observation tend to over-estimate the duration of the event, see I. Sarason and R. Stroops, ‘Test Anxiety and the Passage of Time’ (1978) 46 Journal of Consulting and Clinical Psychology 189; B. Cutler, S. Penrod and T. Martens, ‘The Reliability of Eyewitness Identifications: The Role of System and Estimator Variables’ (1987), 11 Law and Human Behavior 223. 10. See Cutler, Penrod and Martens, above n. 9; E. Loftus, G. Loftus and J. Messo, ‘Some Facts About “Weapon Focus”’ (1987) 11 Law and Human Behavior 55; N. Steblay, ‘A Meta-Analytic Review of the Weapon Focus Effect’ (1992) 16 Law and Human Behavior 413. 11. G. Wells, ‘Applied Eyewitness Research: System Variables and Estimator Variables’ (1978) 36 Journal of Personality and Social Psychology 1546; G. Wells, Eyewitness Identification: A System Handbook (Carswell: Toronto, 1988) 13-23 12. Wells (1988) above n. 11 at 13. 13. R. Atkinson and R. Shiffrin, ‘Human Memory: A Proposed System and its Control Processes’ in K. Spence and J. Spence, The Psychology of Learning and Motivation: Advances in Research and Theory, vol. 2 (Academic Press: 1968). 14. R. Christiansen, J. Sweeney and K. Ochalek, ‘Influencing Eyewitness Descriptions’ (1983) 7 Law and Human Behavior 59. 15. See G. Kohnken, ‘Interviewing Adults’ in R. Bull and D. Carson (eds), Handbook of Psychology in Legal Contexts, 1st edn (Wiley: Chichester, 1995) 218. 16. See, e.g., G. Mazzoni, M. Vannucci and E. Loftus, ‘Misremembering Story Material’ (1999) 4 Legal and Criminological Psychology 93; see generally G. Davies, ‘Contamination of Witness Memory’ in A. Heaton-Armstrong, E. Shepherd and D. Wolchover (eds), Analysing Witness Testimony (Blackstone: London, 1999). 17. H. Crombag, W. Wagenaar and P. van Koppen, ‘Crashing Memories and the Problem of “Source Monitoring”’ (1996) 10 Applied Cognitive Psychology 95. 18. See E. Loftus and G. Loftus, ‘On the Permanence of Stored Information in the Human Brain’ (1980) 35 American Psychologist 409. See also D. Hall, E. Loftus and J. Tousignant, ‘Post-event Information and Changes in Recollection for a Natural Event’ in E. Loftus (ed.), Eyewitness Testimony (Cambridge University Press: Cambridge, 1984). 19. See J. Searcy, J. Bartlett and A. Memon, ‘Influence of Post-Event Narratives, Line-up Conditions and Individual Differences on False Identification by Young and Older Eyewitness’ (2000) 5 Legal and Criminological Psychology 219. 20. See Penrod and Cutler, above n. 5 at 114. 21. Ibid. at 113. 22. Of course, some cases will be subject to appeal. 23. Twining, above n. 1 at 165. 24. Code D, para. 3.11. 25. Code D provides that an identification parade may be used where a video identification is not practicable, or a parade would be more suitable, see Code D, para. 3.14. A group identification procedure may be conducted where it is considered more suitable than a video identification or identification parade, see Code D, para. 3.16. Detailed provisions concerning the manner in which video identifications, identification parades and group identifications are to be conducted can be found in Annexes A, B and C of Code D respectively. 26. Code D, Annex A, para. 2. 27. In the case of video identification: Code D, Annex A, para. 10. 28. Video identification: Code D, Annex A, para. 10; Identification parade, Code D, Annex B, para. 15. 29. Ibid. 30. Video identification, Code D, Annex A, para. 11; Identification parade, Code D, Annex B, para. 16. 31. Video identification, Code D, Annex A, para. 11; Identification parade, Code D, Annex B, para. 16. 32. Video identification: Code D, Annex A, para. 13; Identification parade: Code D, Annex B, para. 20. 33. Video identification: Code D, Annex A, para. 14; Identification parade: Code D, Annex B, para. 21. 34. Code D, para. 3.1 35. Video identification: Code D, Annex A, para. 7; Identification parade: Code D, Annex B, para. 12. 36. Video identification: Code D, Annex A, para. 18; Identification parade: Code D, Annex B, para. 28. 37. Identification parade: Code D, Annex B, para. 23. If a video identification procedure is used, then a video recording of the procedure is only necessary where the suspect's legal representative is not present, Code D, Annex B, para. 9. 38. See E. Connors et al., Convicted by Juries, Exonerated by Science: Case Studies in the Use of DNA Evidence to Establish Innocence After Trial (National Institute of Justice: Washington, DC, 1996). 39. Eyewitness Evidence: A Guide for Law Enforcement (US Department of Justice, Office of Justice Programs: 1999). 40. Ibid. 41. These are the recommendations that (1) the person who conducts the procedure should not know which person is the suspect, and (2) the confidence that a witness holds in any identification made be recorded. 42. G. Davies and T. Valentine, ‘Codes of Practice for Identification’ (1999) 7 Expert Evidence 59. See also M. Kebbell, ‘The Law Concerning the Conduct of Lineups in England and Wales: How Well Does It Satisfy the Recommendations of the American Psychology Law Society? (2000) 24 Law and Human Behavior 309, and I. McKenzie, ‘Eyewitness Evidence: Will the United States Guide for Law Enforcement Make Any Difference? (2003) 7 E & P 237. 43. Code D, para. 3.4 (2003). 44. Code D, para. 2.17 (1995), ‘A police officer may take a witness to a particular neighbourhood or place to see whether he can identify the person whom he said he saw on the relevant occasion. Before doing so, where practicable a record shall be made of any of the suspect. Care should be taken not to direct the witness's attention to any individual.’ 45. Code D, para. 3.2(d). 46. Code D, para. 3.2(c). 47. Code D, para. 3.2(d). 48. See A. Slater, The Universal Video Booth: Planned and Tested, Police Research Award Scheme (Home Office, Policing and Reducing Crime Unit: 1999) 18-23; G. Pike, N. Brace and S. Kynan, The Visual Identification of Suspects: Procedures and Practice, Briefing Note 2/02 (Home Office, Policing and Reducing Crime Unit: 2002), who reported that a majority of police officers interviewed on the subject of improving identification procedures felt that current guidance on street identifications could be improved. For an example of a case in which the procedures adopted by the police appear poor, see R v O'Brien [2003] EWCA Crim 1370 (see commentary by A. Roberts (2003) 68 JCL 27). 49. The Technical Working Group of the US National Institute of Justice, above n. 38, recommended that the witness should be told that: ‘It is as important to clear innocent persons from suspicion as to identify guilty parties’, ‘The person who committed the crime may or may not be present’ and ‘Regardless of whether or not an identification is made, the police will continue to investigate the incident’. 50. See D. Birch, commentary on R v Hickin [1996] Crim LR 584 at 586. 51. Code D, para. 3.2. 52. See R v Popat [1998] 2 Cr App R 208; R v Forbes [1999] 2 Cr App R 501, CA; R v Popat (No. 2) [2000] 1 Cr App R 387; R v Forbes [2001] 1 Cr App R 430, HL. 53. A. Sanders and R. Young, ‘The Rule of Law, Due Process and Pre-Trial Criminal Justice’ (1994) 47 Current Legal Problems 125. 54. See M. Freeman, ‘Law and Order in 1984’ (1984) 37 Current Legal Problems 175. 55. Sanders and Young, above n. 53 at 129. 56. Some of these are summarised by A. Ashworth, The Criminal Process: An Evaluative Study (Oxford University Press: 1998) 27-8. 57. H. Packer, Limits of the Criminal Sanction (Stanford University Press: 1968); see also A. Sanders and R. Young, Criminal Justice, 2nd edn (Butterworths: London, 2000) 22-32. 58. Sanders and Young, above n. 53; R. Young and A. Sanders, ‘Royal Commission on Criminal Justice: A Confidence Trick?’ (1994) 14 Oxford Journal of Legal Studies 435. 59. Code D, para. 2.1. 60. Code D, para. 2.3. 61. See E. Cape, ‘The Revised PACE Codes of Practice: A Further Step Towards Inquisitorialism’ [2003] Crim LR 355. 62. PACE (Codes of Practice) (Temporary Modifications to Code D) Order 2002 (SI 2002 No. 615). 63. ‘Identification Procedures: Introduction of Changes to Section 2 of PACE Code D’, Home Office, Police Leadership and Powers Unit, 25 March 2002. 64. For analysis, see A. Roberts, ‘Identification Evidence: Rule, Principle, Discretion and Reform of Code D after Forbes ’ (2002) 66 JCL 250; A. Roberts and S. Clover, ‘Managerialism and Myopia: The Government's Consultation Draft on PACE Code D’ [2002] Crim LR 883; D. Wolchover and A. Heaton-Armstrong, ‘Farewell to Forbes ’ (2003) 7 Archbold News 4; P. Bogan, ‘Forbes Alive and Well’ (2003) 9 Archbold News 5; D. Wolchover and A. Heaton-Armstrong ‘A Reply to ‘Forbes Alive and Well” (2003) 9 Archbold News 6. 65. Report of the Joint Home Office/Cabinet Office Review of the Police and Criminal Evidence Act 1984 (Home Office/Cabinet Office: 2002) at para. 2. 66. See M. Zander, ‘The Joint Review of PACE: A Deplorable Report’ (2003) 153 NLJ 204. 67. Joint Review, above n. 65 at 14. 68. See Ashworth, above n. 56 at 30: ‘This is a rhetorical device of which one must be extremely wary. At worst it is a substitute for argument: “achieving a balance” is put forward as if it were self-evidently a worthy and respectable goal … [M]any of those who employ this terminology fail to stipulate exactly what is being balanced, what factors and interests are being included or excluded, what weight is being assigned to particular values, and so on. Where this occurs it amounts to self-delusion or intellectual dishonesty.’ 69. Above n. 42. 70. M. Zander, The Police and Criminal Evidence Act 1984, 4th edn (Sweet & Maxwell: London, 2003) para. 6-18 suggests that this was due mainly to the findings of the Runciman Commission on Criminal Justice, Cm 2263 (1993) 48, para. 102 and that there were ‘hardly any’ disciplinary proceedings for breaches of PACE. 71. Particularly in view of the fact that any unwillingness to take part in procedures can not be overcome by means of physical coercion, see R v Jones (Derek), The Times (21 April 1999). 72. See McKenzie, above n. 42 at 256. 73. See e.g. R v Williams [2003] EWCA Crim 3200; R v O'Brien [2003] EWCA Crim 1370. 74. R v Lambert [2004] All ER (D) 48 Jan; R v Noonan [2003] EWCA Crim 3869; R v DPP [2003] EWHC Admin 3074 ; R v Harris [2003] EWCA Crim 174; K v DPP [2003] EWHC Admin 351; R v Lydiate [2004] EWCA Crim 245. 75. [2003] EWCA Crim 3200. 76. Paragraph 2.26(b) of the provisions that were temporarily in force at the time of the offence, see Police and Criminal Evidence Act 1984 (Codes of Practice) (Temporary Modifications to Code D) Order 2002 (SI 2002 No. 615). The corresponding provision is found in para. 3.2(b) of the version of the Code issued in 2003. 77. R v Williams [2003] EWCA Crim 3200 at [12]. 78. Exclusion of evidence in cases of a breach of the Code is a vexed issue, which it is not possible to address here. However, one possibility that might be examined is the identification of certain of the Code's provisions as ‘keystones’ and making breach of these provisions subject to a statutory presumption of exclusion with, perhaps, an inclusionary discretion. 79. [1999] 2 Cr App R 501. 80. Ibid. at 517C, per Laws LJ. 81. See F. Schauer, Playing by the Rules: A Philosophical Examination of Rule-Based Decision-Making in Law and in Life (Clarendon Press: Oxford, 1991) 122-34. 82. J. P. Salembier, ‘Designing Regulatory Systems: A Template for Regulatory RuleMaking’ (2002) 23 Statute Law Review 165-90 at 177. © 2011 Vathek Publishing ³1Áß5»âÏ7ˆìí¡ŠàA$S†g#ïFAYþ§-aö—q`êSBÑèÅt*‰%øü¿à:m·ø•^§ ÐÄÕûH-OÄÏÙÊ÷â_ ˆOo<r¨q30tXò¼çõ­û´ñA–xí›HxŸåE=2£!ˆúŒÖ©HIC©÷y^NG_JN·³õòüéî­uéçø’X÷Ä+ˆ"]±Ç¤Âˆ¹Î‘€¬ë˜<+¨ÜšF¡¨;HÁ® àŽWóÎ×ÏcýÞ+bM#U_Á«C-‘2Ú¥µìO¿-˜Èú‘ƒPiÚ6¿¥éé£Û]Xò‘Ü•c2¡$ýߺXgÎ