This unit describes the skills and knowledge required to develop an understanding of the dynamics of crash incidents to assist in an investigation. It includes applying an understanding of physics and mathematical principles, including the use of diagrams and/or models.  This unit applies to those working as police officers with responsibilities for investigating crash incidents beyond initial attendance and developing findings. This unit is intended to provide a basic foundational understanding of and an introduction to crash analysis. The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to, particularly those related to Work Health and Safety (WHS).  Those undertaking this unit would demonstrate strong autonomy, making independent decisions and accessing support from a broad range of services. They would be responsible for investigating a crash incident, providing guidance and assistance, and displaying leadership as part of routine crash investigation duties. They would perform complex tasks within a broad range of contexts.