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NCJRS Abstract

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NCJ Number: 158148 Find in a Library
Title: Crime Scene Reconstruction Using 3D Computer-aided Drafting
Journal: Police Chief  Volume:62  Issue:10  Dated:(October 1995)  Pages:61-62
Author(s): P G Breuninger
Date Published: 1995
Page Count: 2
Sponsoring Agency: National Institute of Justice/
Rockville, MD 20849
Sale Source: National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America
Type: Report (Technical Assistance)
Format: Article
Language: English
Country: United States of America
Annotation: Three-dimensional crime reconstruction using computer- aided drafting is making major changes in the science of criminal investigations.
Abstract: Drawings and diagrams using traditional methods have a major disadvantage: extensive changes require considerable effort and time, and errors and erasures are obvious in the finished product. In contrast, computer-aided drafting (CAD) has made flawless drawings possible. CAD models can also indicate the flight paths of multiple projectiles that have struck walls, floors, ceilings, vehicles, and victims, thereby helping refine complex theories regarding the unfolding of a criminal event. The expansion of the personal computer market and the availability of user-friendly software make it possible for every police agency to use this technology. Creating a crime scene model begins with the decision about which point will be the absolute zero reference point. All subsequent points are measured and referenced to the zero point. Investigators can use a palmtop computer to gather data at the crime scene. They can later transfer the data to a larger system to complete the model with the addition of doors, windows, furniture, and evidence. The finished model can be viewed from any perspective in wireframe or solid mode. It can also be animated and transferred to videotape. CAD courses are available at high schools, community colleges, and law enforcement training facilities. Illustration
Main Term(s): Computer aided investigations
Index Term(s): Crime scene; Evidence collection; Police computer training
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