Law enforcement is responsible for investigating crimes, identifying and arresting the suspects, and presenting evidence to a judge and jury in court. In order to objectively perform these duties, police need to gather accurate information and clearly explain the crime scene and physical evidence in a court of law. Part of this information includes the documentation of the incident. Documenting an incident has always been divided into three categories: notes, sketch, and photographs. This method of recording crime scenes has been the standard for years. The major drawback, however, is that the visual documents of sketches and photographs are two dimensional. This greatly restricts the actual visualization of the incident requiring a careful cross referencing of the details in order to understand it.
Hayden B. Baldwin,
"Three-dimensional imaging in crime scene investigations", Proc. SPIE 3576, Investigation and Forensic Science Technologies, (4 February 1999); doi: 10.1117/12.334521; https://doi.org/10.1117/12.334521