An Investigation into Whether or Not the Class and Individual Characteristics of Five Turkish Manufactured Pistols Change During Extensive Firing

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In order to assess whether or not the class and individual characteristics of a firearm change over time, five different makes of Turkish self-loading pistol were tested and were each fired a large number of times. The class and individual characteristics were identified for each pistol and the first fired cartridge case was compared with the subsequent consecutive 250th fired cases for each pistol. It was found that there were slight changes in some of the individual and class characteristics; however, this was not statistically significant and did not affect the ability of the firearms examiner to match the first fired case to the last fired case for each firearm tested.

Keywords: ballistics; breech face mark; cartridge case; class characteristics; ejector mark; extractor mark; firing pin impression; forensic science; individual characteristics; pistol

Document Type: Research Article


Affiliations: 1: Faculty of Engineering, Department of Engineering Physics, Ankara University, Tandoğan, Ankara 06100, Turkey. 2: Forensic Science Service, Firearms Department, London, U.K.

Publication date: September 1, 2009

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