20285
28-Jun-16
1 of 4
POLICE TRAFFIC CRASH
INVESTIGATION
Carry out advanced illustrative forensic
mapping analysis of a traffic crash
scene
level:
6
credit:
4
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:
determine vehicle slip angle while in a state of yaw or
rotation; determine the initial impact alignment of vehicles;
determine vehicle’s post impact departure direction and line
of travel; display gradients on the computer generated plan;
and insert vehicle photographs and/or profiles on an
illustrative plan.
entry information:
Recommended: Unit 20284 Produce a computer generated
plan to provide crime scene information; Unit 20286 Identify
and report on causative and/or related events in a traffic
crash; or demonstrate equivalent knowledge and skills.
accreditation option:
Evaluation of documentation and visit 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
Definitions
COM refers to the centre of mass of a vehicle.
crime scene is any location where an incident has
occurred. The commission of the incident upon
investigation may disclose a criminal offence against
the criminal statutes of New Zealand law.
Workplace procedures refers to documented
procedures specific to the police, which set out the
quality management requirements for the business
practice and activities of that organisation.
Yaw means the motion of a car that is both sliding and
rotating simultaneously.
 New Zealand Qualifications Authority 2016
20285
28-Jun-16
2 of 4
POLICE TRAFFIC CRASH
INVESTIGATION
Carry out advanced illustrative forensic
mapping analysis of a traffic crash
scene
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
For the purposes of assessment the candidate is
required to provide evidence that they can analyse
plans produced by themselves or others.
Elements and Performance Criteria
element 1
Determine vehicle slip angle while in a state of yaw or rotation.
performance criteria
1.1
Tyre friction marks are identified as yaw marks for an illustrative plan.
1.2
Tyre striations are recorded.
1.3
Progressive increments of vehicle COM and slip angle along a road surface are
displayed according to workplace procedures.
element 2
Determine the initial impact alignment of vehicles.
 New Zealand Qualifications Authority 2016
20285
28-Jun-16
3 of 4
POLICE TRAFFIC CRASH
INVESTIGATION
Carry out advanced illustrative forensic
mapping analysis of a traffic crash
scene
performance criteria
2.1
Vehicle profile is plotted in accordance with workplace procedures.
2.2
Vehicles are aligned at initial impact.
2.3
Alignment accords with physical scene evidence and is expressed in
accordance with workplace procedures.
element 3
Determine vehicle’s post impact departure direction and line of travel.
performance criteria
3.1
Vehicles are aligned at initial departure positions.
3.2
Alignment accords with physical scene evidence and is depicted in accordance
with workplace procedures.
3.3
Vehicle departure path is plotted in accordance with physical scene evidence
and is depicted in accordance with workplace procedures.
element 4
Display gradients on the computer generated plan.
performance criteria
4.1
Ground surface gradients that effect the direction of movement of the vehicle
COM are shown.
element 5
Insert vehicle photographs and/or profiles on an illustrative plan.
performance criteria
 New Zealand Qualifications Authority 2016
20285
28-Jun-16
4 of 4
POLICE TRAFFIC CRASH
INVESTIGATION
Carry out advanced illustrative forensic
mapping analysis of a traffic crash
scene
5.1
Vehicle photographs are shown at plan scale.
5.2
Scale elevation or plan profiles of incident vehicles are clearly positioned and
referenced.
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