Collections Care Policy for Special Collections at the University of Bradford Special Collections J.B. Priestley Library University of Bradford Bradford. BD7 1DP. Email: special-collections@bradford.ac.uk Web: http://www.brad.ac.uk/library/special-collections Tel: +44 (0) 1274 235256 February 2014 Collections Care Policy for Special Collections, University of Bradford ABOUT THIS DOCUMENT Author: Alison Cullingford. Version: 1.00. Document history: Incorporates feedback following circulation of 0.04 Date: February 2014 Audience: Public document. Copyright: University of Bradford. Readers are welcome to share it under the terms of our Creative Commons licence: AttributionNonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0). http://creativecommons.org/licenses/by-nc-nd/3.0/ Special Collections welcomes feedback on its documentation. Please contact us if you have any comments, if you need to view this in an alternative format, or if you wish to use it in any way not covered by the Creative Commons licence: special-collections@bradford.ac.uk 2 February 2014 Collections Care Policy for Special Collections, University of Bradford CONTENTS Introduction .................................................................................................3 Publication history ......................................................................................3 Publication scope .......................................................................................4 Historical context ........................................................................................4 Building, collections and risks .....................................................................5 Staff and funding ........................................................................................6 Principles ....................................................................................................7 Standards and guidelines ...........................................................................7 Security ......................................................................................................8 Disasters and emergencies ........................................................................8 Storage and environment ...........................................................................9 Shelving ....................................................................................................10 Packaging .................................................................................................10 Housekeeping...........................................................................................11 Cleaning ...................................................................................................11 Conservation ............................................................................................12 Surrogacy .................................................................................................12 Access and handling ................................................................................12 Reprographics ..........................................................................................13 Exhibitions ................................................................................................14 Inter-library loans ......................................................................................14 Digital preservation ...................................................................................14 Policy review.............................................................................................15 1 February 2014 Collections Care Policy for Special Collections, University of Bradford INTRODUCTION Special Collections at the University of Bradford collects, cares for and makes available unique and distinctive (UD) archives, rare books and other heritage material in support of the University’s teaching, research and community engagement. The collections offer a unique selling point for the University and hence are also invaluable in its marketing, fundraising and other management activities. Materials in Special Collections face many risks to their survival, including water, fire, theft, vandalism, pests, mould, and poor handling. The picture is complicated by the properties of the materials of which collections are made, which individually or in combination with other materials will determine how quickly they deteriorate. Some, such as 1940s newsprint or some audio-visual formats, are chemically unstable and will deteriorate rapidly (known as “inherent vice”). Collections care (also known as preservation in the library and archive sectors) is the “range of activities intended to safeguard a collection” from these risks. These activities include “policies, security, storage, cleaning, maintenance, handling, scientific investigation, environmental monitoring and control, exhibitions and loans, conservation, provision of surrogates and emergency planning”1. This document outlines our policies for these activities. Such policy-making is delegated to the Special Collections Librarian, who is expected to have appropriate knowledge of best practice and to consult professional colleagues and stakeholders. Our policies are implemented through our planning structure. Significant projects are part of our rolling Forward Plan. Concerns about the condition, storage etc of individual collections or items are added to our master Preservation Plan. Emergency planning is discussed in the section below. Most collections care is about everyday work with collections and spaces, for which our procedures are continuously improved. This document uses our collections typology (Heritage, Legacy, Self-renewing, Finite), which is explained in full in the Collection Development Policy (CDP)2. PUBLICATION HISTORY Most of the policies in this document were developed when the Special Collections service was set up in 2000. Recent developments mean that it is timely to revisit them: 1 Definitions from: Collections Trust and British Standards Institution (2009). PAS 197: Code of Practice for Cultural Collections Management. 2 The CDP along with our other policies is available from http://www.bradford.ac.uk/library/special-collections/about-us/policies/ 3 February 2014 Collections Care Policy for Special Collections, University of Bradford The relevant standard, BS 5454 has been replaced by PD 5454: 2012. Our revised collection development policy has refined our strategic thinking on preservation as with all aspects of managing Special Collections. We have adopted the “collections care” structure used in PAS 1973: the basis of the Archive Accreditation Scheme and likely to become standard for managing UD collections in the UK. This document replaces all previous Special Collections preservation policies. PUBLICATION SCOPE This document covers our analogue collections and our existing digital collections. These are mainly boutique digitised versions of analogue originals or occasional legacy formats within analogue collections. It does not cover the management of born-digital documents on a larger scale. This is an area where strategy and policy are still being shaped4 and which will be addressed in future revisions of this policy. With the exception of the emergency planning section, this policy covers only UD material managed by Special Collections. It excludes such material elsewhere in the University. As this is a public document, we do not discuss the specifics of our security arrangements. HISTORICAL CONTEXT When the Special Collections service was founded in 2000, we found evidence of some good practice: most materials were on shelves and most archives in boxes of some kind, some conservation work carried out, and a Library disaster plan existed. However, this was mostly piecemeal and uninformed by engagement with standards and best practice. There were some very serious concerns to be addressed: poor storage and uninvigilated access in particular. Since then we have transformed all aspects of collections care. As this document will show, we are achieving the highest standards in many areas of practice. However, we recognise that in some areas we are not reaching the standards we would wish. We explain why this is the case and how we intend to improve in the relevant sections. 3 Collections Trust and British Standards Institution (2009). PAS 197: Code of Practice for Cultural Collections Management. 4 As outlined in the position paper for internal audiences Digital Storage and Delivery for Special Collections. 4 February 2014 Collections Care Policy for Special Collections, University of Bradford BUILDING, COLLECTIONS AND RISKS Special Collections is located in the J.B. Priestley Library, in the centre of the city campus. This was completed in 1975 and is a characteristic university building of the period, complete with flat roof and a complex structure of utilities. An extension was added during the 1990s. In recent years this building and its near neighbour the Communal Building had become outdated and unsuitable for the needs of modern students. Extensive work has transformed the three upper floors of the Library and linked it to the Communal Building, now Student Central. The two lower floors, including Special Collections, will be improved in future developments. We share the building complex with the rest of the Library, IT Services, the Students Union, Careers and other University departments. The Special Collections cover 115 cubic metres. Most date from the mid 19th century onwards (reflecting the story of the University and the City, as explained in the CDP). Most are paper. There are many photographic items, mostly prints. About 5% of our collections are estimated to be unstable (audio-visual media, newsprint, scrapbooks and other fragile papers). We have 18 cubic metres of material which requires “oversize” storage, mostly maps and bound newspapers. Film is deposited with the Yorkshire Film Archive. Our digital holdings currently comprise 13 GB (mostly boutique digitisation of paper/photographic collections) on a secure University server. To track and understand risks to collections, we maintain a Risk Register, which is updated continuously and reviewed annually, and an Incident Log, which allows us to see patterns and monitor problems. In summer 2013, the risks were as follows: Risk Comments Air pollution Risk managed. Collections boxed. Cleaning programme. Rose during building works but now less of a concern. Fire Risk managed. A University level issue. Staff and procedures, PAT testing etc all in place. SC staff vigilant. Particular concern during building work. Handling Risk managed. Reading room and other procedures. Equipment e.g. weights. Inherent vice Managed but concern given nature of our material and environment. Stable temperature and humidity would help. Conservation and surrogacy programmes. 5 February 2014 Collections Care Policy for Special Collections, University of Bradford Light Risk managed. No natural light in storerooms, all collections boxed, lights on only when needed. Mould Risk managed. In CDP. Use of Quarantine. Staff awareness of damp risk and nature of mould. Spaces err on side of warm/dry. C19 vols have red rot – warning signs and use of gloves. Pests Risk managed. In CDP. Use of Quarantine. Staff awareness of habits of pests etc. No food or drink in SC areas. Managing down of print in Library and removal of unwanted kit helps reduce risk. Security Confidential – not covered in public document. Storage/packaging Risk managed. Boxing and packaging procedures and programme. Temperature/humidity Concern. See discussion under Storage. Water Concern. See discussion under Storage. STAFF AND FUNDING Special Collections is not currently in a position to employ inhouse conservation staff, nor do we have space for them. We have no plans to do so in future. Instead, as explained in the relevant section, we outsource such work (funded by donations or income generation). Special Collections staff are thus expected to develop high levels of expertise in this area to make up for the lack of such expertise inhouse. The Special Collections Librarian must understand the professional context, keep up to date with developments and be able to work with conservators to commission work. Collections care is one of the two key responsibilities of the Special Collections Assistant, including day to day monitoring, good housekeeping, the cleaning rota and other operational tasks. All other staff and volunteers in Special Collections receive training which is continuously reinforced in practice. Every aspect of the work of Special Collections is informed by the need for the highest possible standard of collections care. Staff are trained in safe handling of UD materials and encouraged to develop their knowledge by attending training courses and selfdirected learning. 6 February 2014 Collections Care Policy for Special Collections, University of Bradford We should also mention the invaluable work done by many other University colleagues in supporting collections care. Operating in a shared building in a larger organisation has many advantages. For example, the disaster team (see below), the colleagues who work in the Library out of hours, Estates, Security and Health and Safety are all essential contacts. We aim to raise awareness of preservation issues among all relevant University staff. PRINCIPLES Collections care is integrated with other policies. The CDP explains how preservation issues influence our collecting activities (for instance, there are certain formats we will not collect because we cannot offer them proper care). It runs alongside our Access and Collections Information Policies, which work together to enable users to make the most of collections now and into the future. Collections which are unappraised, uncatalogued and unknown are vulnerable and at risk of neglect. Their best protection is that they are valued and understood by stakeholders and communities. STANDARDS AND GUIDELINES The following standards and guidelines are employed to develop our policies, plans and procedures: British Library Preservation Advisory Centre (various). Preservation booklet series. British Standards Institution (2002). BS 4971: Recommendations for Repair and Allied Processes for the Conservation of Documents. British Standards Institution (2012). PAS 198: Specification for Managing Environmental Conditions for Cultural Collections. British Standards Institution (2012). PD5454: Guide for the Storage and Exhibition of Archival Materials. Collections Trust (2011). Benchmarks in Collections Care. Collections Trust and British Standards Institution (2009). PAS 197: Code of Practice for Cultural Collections Management. Resource: The Council for Museums, Archives and Libraries (2003) Security in Museums, Archives and Libraries : a practical guide Networks and organisations whose information and inspiration has helped us: British Library Preservation Advisory Centre Institute of Conservation (ICON) National Archives OCLC Research North East Document Conservation Center Harwell Document Recovery Services 7 February 2014 Collections Care Policy for Special Collections, University of Bradford Yorkshire Rapid Response Network SECURITY All archives are kept in secure closed access facilities. Access by staff other than Special Collections is by key and contractors are accompanied. Printed book collections are kept in the Reading Room, to enable readers to browse them, under supervision by Special Collections staff. Access to UD material is available by appointment in the Reading Room only, under supervision by Special Collections staff. The Fetch service is available for University staff and students to use elsewhere in the Library, for certain modern printed books where the risk is deemed acceptable. We have a range of other policies and practices to maintain security which it is not appropriate to cover in a public document. Such information is managed at an operational level. DISASTERS AND EMERGENCIES Special Collections staff are responsible for creating and maintaining emergency plans and procedures for the collections. This responsibility extends to printed collections elsewhere in the Library. It includes assessing risks, monitoring the building, and recruiting and training the “disaster team” of library colleagues. The Special Collections Librarian is “Silver” Officer for Heritage and Records Salvage in the University’s Emergency Plan, We are committed to forming effective relationships with key University and local colleagues and to protecting UD assets in the University and the region wherever we can. For instance, we helped create the Yorkshire Rapid Response Network, a co-operative of heritage organisations who share equipment and arrange training. Recently we have decided to move away from the traditional library disaster plan. We had written several versions over the years and found the burden of creating and maintaining them was not paid for in raised awareness, improved skills etc. We are also no longer a self-contained library whose staff are librarians or library assistants. Our building is home to many services and all kinds of staff, students and visitors. It is mostly open 24/7. We also observed the rise of new ways of communication by mobile and online. Our revised structure is as follows: 1. Mop-Up. Most incidents in the Library involve water and start small. They may be discovered by the cleaning staff, student champions, security or anyone. The Special Collections Assistant creates and maintains basic “Mop Up Kits” and contact details to help any staff member or champion to take action. 2. Basic response and salvage. “Bronze”. The disaster team is given more detailed training in response, salvage etc. They will take charge in an incident and may come in out of hours to monitor or respond. They are 8 February 2014 Collections Care Policy for Special Collections, University of Bradford equipped to air-dry the Library’s Self-renewing stock and to protect (but not attempt to salvage) Special Collections in the absence of Special Collections staff. The Special Collections Assistant keeps Salvage Boxes stocked with useful kit and more detailed instructions. This level can also draw on external kit and expertise. 3. Special Collections response and salvage. “Silver/Bronze”. Special Collections staff are expected to be expert in all aspects of emergency response and salvage, including knowledge of collections, priorities, external contacts, insurance liaison etc. They would use the Salvage Boxes and draw on external kit and expertise. This level draws on expertise rather than written protocols other than contact details and aides-memoire. 4. Special Collections strategic/preparation. “Silver”. Risk assessment, risk monitoring, strategic planning, priorities, insurance liaison. Plans at Levels 1 and 2 are checked regularly and continuously updated as business-as-usual. We review the plans behind 3 and 4 annually. In the past our disaster plans covered Library service continuity, but this arrangement has became outdated: Library services now are part of a complex pattern of electronic infrastructure resources and licensing for which the appropriate managers and technical experts are responsible. Service continuity of Special Collections is discussed in our Access Policy. We are happy to use our expertise to help colleagues in the Library and elsewhere in the University develop their own service continuity plans. STORAGE AND ENVIRONMENT All storage areas are within the J.B. Priestley Library. We believe outstores put collections at greater risk and it is much harder to make collections stored in this way readily available, creating a vicious cycle which can lead to neglect. Outstores would only be used in the event of major building work or disaster and we would follow best professional practice in finding and managing such stores. New material from donors has often been stored in poor conditions and hence may contaminate other collections with mould or pests. It is stored away from other material in a Quarantine area and monitored until it is no longer a risk. The storage areas were not created for Special Collections. We have made the most of what was available to us, developing the various rooms and shelving areas in which collections were already stored. Gradually we have consolidated our archives into two large stores which are the best rooms available, removing non-Special material and abandoning the use of the poorest quality spaces. Most printed books are housed in the Reading Room to allow browsing. Special Collections has been tackling the legacy of previous passive indiscriminate collecting. Our deaccessioning work is outlined in the CDP and CIP and covered by appropriate plans. Approximately 40% of our collections are either Finite or in need of extensive appraisal. We are also clearing out furniture and the like that is no longer needed. We work closely with our colleagues in 9 February 2014 Collections Care Policy for Special Collections, University of Bradford main Library, who are doing similar work. These projects will lead to more pleasant working environments for staff and users and spaces which are easier to keep clean and tidy and hence reduce risks to collections. It will allow us to collect the material that best fulfils our mission and to store it in the most appropriate way. We have two remaining concerns about our stores. Neither problem can be solved until areas are refurbished and there are no easy answers, but we do whatever we can to reduce the risks. 1. We monitor the environment but do not have a system of controlling it. When temperature and humidity are widely outside the norms for those spaces, we have been able to report the concern and action taken. Conditions are relatively stable though do not comply with the recommended standards. Our boxing programme helps create stable microclimates. 2. A complex network of water pipes and other utilities is above and around our spaces. We continually try to understand and reduce the risks. For instance, disused sinks and toilets have been removed as has an obsolete humidifier, and we built placed drip trays under valves. As we free up space by deaccessioning, we will be able to “triage” our storage, moving the most important Heritage collections to the safest places (we have already done this to the best of our ability but are currently limited by the lack of empty space). SHELVING Our shelving comprises: A long run of rolling stacks well suited to archive boxes. Small wooden shelving units of various sorts, best for printed books. Metal library shelving of various sorts, suited to archives or books depending on shelf width. A plan chest and two cabinets for storage of oversize items. While most of it has been recycled from elsewhere, it is all of suitable size and strength for our collections. Any further shelving we acquire will be of this quality or better. We are aware that the layout of the non-fixed shelving has grown up in an ad hoc way and plan to review this to ensure we are making best use of the space we have. PACKAGING We aim to package all UD material in appropriate enclosures using archival quality materials and are systematically working towards this goal. We find that even non-archival enclosures such as our “Niceday” archive boxes offer considerable protection from water ingress, dust etc. 96% of our archives are stored in archival quality or other appropriate boxes. The remaining 4% will be addressed in the Preservation Plan. New archives are put into big transit boxes on arrival on the premises if they are not already boxed. Original or transit are replaced with better boxes when we 10 February 2014 Collections Care Policy for Special Collections, University of Bradford catalogue. Following MPLP, we replace broken or harmful enclosures and remove rusted staples etc but we do not re-folder or systematically seek issues. The state of older collections is assessed when they are used, moved or cleaned. We address problems when we see them, and, if they cannot be resolved at once, the issue is added to the log in our Preservation Plan. We are gradually moving all Heritage and Legacy archives to archival quality enclosures such as Mylar or tissue as funding becomes available. Printed books are not usually boxed unless in transit: their appearance on the shelves is part of their appeal and keeping spines on show allows users to browse. We address preservation issues for Heritage and Legacy items when we catalogue or as we find them. Our activities include making phase boxes to protect fragile bindings; tying cotton tape around detached bindings; and protecting dust jackets with Mylar wraps. We take no particular measures to preserve Self-renewing material beyond storing it on shelves. Finite materials are boxed and protected from active harm but, as stated throughout our suite of policies, we will not invest staff time or expensive materials in collections which are irrelevant and being rehomed. Most materials in Special Collections fit standard library/archive shelves. 18 cubic metres are considered “oversize”, including newspapers, printed books, maps, large photograph albums and posters. We aim to store them using appropriate methods: rolled, flat in drawers or in vertical cabinets. In practice our storage of oversize items is rather ad hoc and we are planning a project to make better use of oversize space and provide better protection for items. Very small items such as ephemera, pamphlets or small book formats are stored using envelopes or packaging to protect them in boxes or on shelves. HOUSEKEEPING Good housekeeping is essential and at the core of our practice. It is the prime day to day responsibility of the Special Collections Assistant (or other staff member in their absence) to monitor Special Collections spaces, to keep the areas tidy and put collections away when not in use. All issues in our spaces are added to our Incident Log, and reported to Estates, Security, senior management or other colleagues as appropriate. We also encourage colleagues and users to be vigilant and report anything unusual they see. CLEANING We operate an active cleaning programme: an hour a week by the Special Collections Assistant. It includes cleaning objects, boxes, shelves and stores. This reduces risks from pests and dust and enables us to log condition or storage problems. It also creates an atmosphere of care and value rather than neglect. We also clean boxes and shelves whenever we notice they are in need of it. 11 February 2014 Collections Care Policy for Special Collections, University of Bradford CONSERVATION Conservation is one approach to dealing with damaged materials, as part of a preservation programme. It is defined in PAS 197 as “interventive techniques applied to an item to achieve chemical and physical stabilization for the purpose of extending the useful life of the item to ensure its continued availability.” As stated above, we outsource such work to external contractors. They must demonstrate that they are professionally qualified and have relevant experience. All work must conform to the standards of the Code of Ethics of the Institute of Conservation (ICON) and to BS 4971:2002. Priorities for conservation paid for by Special Collections are aligned with collecting priorities. We would consider conserving items which meet the following requirements: Artefact of particular significance in a Heritage cluster. Unique items. Deteriorating. In high demand and suffering wear and tear (especially if a surrogate would not do or cannot be made). Condition cannot be remedied by non-interventive methods such as phase boxing. Other material would be conserved if funding was made available. We are aware that conservation may be unable to solve problems stemming from inherent vice. We will explore the use of surrogates in such situations. SURROGACY Surrogacy is the reproduction of fragile originals in a new format to make them available to users. We operate a programme of boutique surrogacy, on demand for users or as required for other activities such as teaching. Our surrogates are created digitally inhouse, though we may print them out for ease of handling in the Reading Room. We estimate that 3% of our collections have been digitised for whatever reason. We plan to increase our capacity for digitisation which will have benefits for fragile collections. Surrogates are not intended to replace originals, which have qualities and historic significance which mean we should continue to care for them. It is after all possible that new techniques may enable them to be preserved in future. We would occasionally deaccession originals if they are deteriorating in a way which is harmful to other collections or human health. In practice Special Collections does not intentionally collect such materials which are mainly found in film or audio-visual collections. ACCESS AND HANDLING Use exposes collections to risks from handling or exposure to light. However access is not opposed to preservation: we believe that collections which are 12 February 2014 Collections Care Policy for Special Collections, University of Bradford catalogued, used and valued by our communities are less vulnerable than uncatalogued hidden collections. Use also reveals preservation issues such as inappropriate enclosures or rusty staples which can then be addressed. To limit harm from use, all access to originals is invigilated. Readers are required to follow the rules of the Reading Room: bags stored separately, no food or drink, pencils only, handling with care. Gloves are required only for handling photographic material and realia, though we recommend their use for handling covers affected by red rot. Following PD 5454 we are phasing in nitrile gloves for photographic handling, though cotton gloves are still useful for other materials and for staff handling large quantities of boxes. All new visitors receive an induction which explains these rules and helps them to understand what to do. Special Collections staff are empowered to enforce the rules and are encouraged to do so in a supportive way, helping readers to understand the unique qualities of items as artefacts. To make it easier for them, we stock the Reading Room with useful equipment, such as foam book supports, book snakes and weights, and pencils. A few items are too fragile to produce in the Reading Room as any handling would destroy them. This concern is noted when they are catalogued, cleaned or otherwise handled. The situation is made clear in our catalogues. Such items are high priority for conservation work but this may not always be possible or appropriate. We will endeavour wherever possible to provide a surrogate for users to consult. REPROGRAPHICS When Special Collections was established in 2000, reprographics meant photocopying (or, occasionally, professional photography). Photocopying, unless carried out by trained staff and using appropriate machines, poses a serious risk of mechanical damage. The possibilities opened up by digital technology have transformed marketing and services to users, and are often much gentler on collections than older methods. Hence we actively encourage readers to take photographs using their own smartphones and other devices, subject to copyright and consideration for other users. Not only does this limit damage, it enables us to provide a better service. Users can have as many copies as they like right away and can use them as an aide-memoire. It also frees up user time to consult the collections they came to see and staff time to carry out more productive activities. Readers may not use personal devices which make contact with originals. They may use tripods and other photographic equipment by prior arrangement, to minimise disruption to other users. Photocopying, scanning and other contact reprography is carried out only by trained Special Collections staff. Such copying is at our discretion and will be done only when we believe the originals will not be harmed by it. Materials which 13 February 2014 Collections Care Policy for Special Collections, University of Bradford are unlikely to be suitable for such copying include fragile newsprint and tightly bound volumes. In most such cases, a suitable result can be obtained by noncontact methods. EXHIBITIONS Special Collections does not currently have its own space for physical exhibitions, though we plan to address this in future. Instead we concentrate on creating online exhibits and working with partners who have exhibition space. We are keen to work with such partners in any case, as external exhibitions bring Special Collections to new audiences. However, physical exhibitions pose risks to collections. We only lend originals when the borrower can satisfy the Special Collections Librarian about conditions, security, insurance and other concerns. The borrower is required to sign our standard agreement, which is based on guidance from the standards above. It is likely that any heritage organisation such as a museum or gallery will meet our requirements. If organisations cannot meet our requirements, we will endeavour to supply surrogates. INTER-LIBRARY LOANS We appreciate that inter-library loans help users who might not be able to visit us and aware that the presence of our printed books on COPAC will lead to such requests. Thus we will consider such requests. However, there are risks involved. Thus all inter-library loans are at the discretion of the Special Collections Librarian and are for reference use in the borrowing library only. This service is operated on our behalf by our Inter-Library Loan service. We will consider lending modern printed materials which are not unique or otherwise significant as artefacts. We will not consider other formats such as archives, early books or maps, anything fragile or which is in high demand in the Reading Room. If we refuse a loan, we will attempt to contact the enquirer via their host library to see if we can assist them via another route. DIGITAL PRESERVATION As noted under Publication Scope, we are not yet in a position to define policy on born-digital collections. We are taking interim small-scale measures to preserve our existing digitised and digital collections following standards and professional best practice. These include: Storing all such documents in our secure section of the University’s drives. We don’t keep them as email attachments or on local drives. The University’s drives are mission-critical to the University and are backed up to a high standard. Accessioning digital formats in our Accessions Register. Using standard formats likely to be recognised by systems into the future, such as .pdf and .jpg. Files in unusual formats are converted. 14 February 2014 Collections Care Policy for Special Collections, University of Bradford Creating meaningful filenames, based on the archive references of originals or otherwise relating to the content of documents. POLICY REVIEW We aim to review this document annually as part of our summer policy review and to write a new edition when changing technologies, practices and situations render it outdated. 15 February 2014