Applying 3D measurements and computer matching algorithms to two firearm examination proficiency tests.

The practice of tool mark comparison has a long history in the criminal justice system [1]. The goal of these examinations is to answer the question of common origin between a mark found at a crime scene (questioned mark) and a mark known to be produced by a suspected tool (reference mark). Such comparisons are a part of the broader field of pattern recognition and comparison which includes fingerprint, shoe print, tire tread, tool marks, and firearms identification. Until recently most of these disciplines have been practiced by conducting visual inspections (with the aid of a comparison microscope for firearms and tool mark examiners), with final determinations of common source being determined by a trained examiner.
Source: Forensic Science International - Category: Forensic Medicine Authors: Source Type: research