20281 28-Jun-16 1 of 5 POLICE FORENSIC MAPPING Demonstrate knowledge of forensic mapping level: 2 credit: 3 planned review date: April 2006 sub-field: Police purpose: This unit standard is intended for sworn or warranted police officers. People credited with this unit standard are able to: explain police forensic mapping and surveying; demonstrate knowledge of the principles of trigonometry in order to solve problems; describe the distinction between accuracy and precision in measurement in the context of police forensic mapping; demonstrate knowledge of police forensic mapping best practice in relation to accuracy and tolerance in measurement; demonstrate knowledge of the co-ordinates system as it relates to forensic mapping; demonstrate knowledge of the requirements of forensic mapping for the New Zealand Police; and calculate unknown distances or locations. entry information: Recommended: Unit 5236, Use Pythagoras’ Theorem and trigonometry to solve problems involving right-angled triangles; and Unit 5251, Solve problems modelled by triangles, or demonstrate equivalent knowledge and skills. accreditation option: Evaluation of documentation by NZQA and industry. moderation option: A centrally established and directed national moderation system has been set up by The Skills Organisation. special notes: 1 A forensic map is one where a plan is prepared recording items of evidence for use in the event of judicial proceedings. New Zealand Qualifications Authority 2016 20281 28-Jun-16 2 of 5 POLICE FORENSIC MAPPING Demonstrate knowledge of forensic mapping 2 Police general instructions and best practice guides and codes of conduct relating to traffic crash reporting, investigation and forensic mapping apply to this unit standard. 3 Legislation applying to this unit standard may include but is not limited to the Cadastral Survey Act 2002, Health and Safety in Employment Act 1992, Police Act 1958, Transit New Zealand Act 1989, Trespass Act 1980, and all regulations related to these acts. 4 For additional information refer to: Elfick, Fryer, Brinker & Wolf Elementary Surveying 8th edition. Hammersmith, London: HarperCollins, 1994. 5 Unit 20286, Identify and report on causative and/or related events in a traffic crash, details the work discipline of traffic crash investigation that is a complimentary study to forensic mapping. As these two disciplines work closely together it is recommended that candidates seeking credit for this unit standard also seek credit for unit standard 20286. Elements and Performance Criteria element 1 Explain police forensic mapping and surveying. performance criteria 1.1 The origins of surveying are explained. 1.2 The origins of police forensic mapping are explained. 1.3 The police approach to forensic mapping and how its application differs from surveying is explained. New Zealand Qualifications Authority 2016 20281 28-Jun-16 3 of 5 POLICE FORENSIC MAPPING Demonstrate knowledge of forensic mapping element 2 Demonstrate knowledge of the principles of trigonometry in order to solve problems. performance criteria 2.1 Problems based on obtaining length of missing sides or internal angles of triangles are solved. element 3 Describe the distinction between accuracy and precision in measurement in the context of police forensic mapping. performance criteria 3.1 Accuracy in measurement is defined in the context of police forensic mapping. 3.2 Precision in measurement is defined in the context of police forensic mapping. element 4 Demonstrate knowledge of police forensic mapping best practice in relation to accuracy and tolerance in measurement. performance criteria 4.1 Prescribed accuracy and tolerance standards for distance and angular measurement are defined, explained and demonstrated. Range: distances, bearing and height. New Zealand Qualifications Authority 2016 20281 28-Jun-16 4 of 5 POLICE FORENSIC MAPPING Demonstrate knowledge of forensic mapping element 5 Demonstrate knowledge of the co-ordinates system as it relates to forensic mapping. performance criteria 5.1 Co-ordinates as they relate to latitude, longitude, northings and eastings are identified and described. 5.2 Points on a Cartesian projection are read and located. 5.3 The derivation of bearings and distances from co-ordinates is demonstrated. 5.4 Differences between magnetic and geographical north are identified and demonstrated. element 6 Demonstrate knowledge of the requirements of forensic mapping for the New Zealand Police. performance criteria 6.1 The responsibilities of the individual involved in the forensic mapping of a crime scene are identified. 6.2 Requirements for the forensic mapping of a crime scene are identified. Range: includes but is not limited to – briefing notes, job sheets. 6.3 Requirements for hard copy plans or sketches of a crime scene are identified and explained. 6.4 Information borders on the forensic map are identified and described. Range: symbols, line types, legend. New Zealand Qualifications Authority 2016 20281 28-Jun-16 5 of 5 POLICE FORENSIC MAPPING Demonstrate knowledge of forensic mapping element 7 Calculate unknown distances or locations. performance criteria 7.1 Missing angles are determined by triangulation calculations and checked independently in accordance with trigonometry principles. 7.2 Distance to an object that cannot be physically reached is determined. 7.3 Location of an object that cannot be physically reached is determined. Comments on this unit standard Please contact The Skills Organisation info@skills.org.nz if you wish to suggest changes to the content of this unit standard. Please Note Providers must be accredited by the Qualifications Authority or a delegated interinstitutional body before they can register credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be accredited by the Qualifications Authority before they can register credits from assessment against unit standards. Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards. Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for providers wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements. This unit standard is covered by AMAP 0121 which can be accessed at http://www.nzqa.govt.nz/site/framework/search.html. New Zealand Qualifications Authority 2016