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A Forensic-Based Empirical Study to Analyze the Empty Case Ejection Patterns Type 56 Assault Rifle

Nishshanka, Bandula, Shepherd, Chris (2020) A Forensic-Based Empirical Study to Analyze the Empty Case Ejection Patterns Type 56 Assault Rifle. Journal of Forensic Sciences and Criminal Investigation, 13 (3). Article Number 555864. ISSN 2476-1311. (doi:10.19080/JFSCI.2020.13.555864) (KAR id:84287)

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Empty case locations and dispersions on the ground differ according to the type of firearms and are affected by an array of factors. Post- ejection pattern testing is the most effective method to understand the cartridge ejection patterns on the ground for a specific gun and ammunition combination. However, limited scientific research information is available in the existing literature which explores the ejection patterns of rifles, or attempts to study how this readily available evidence can be constructively used for scene reconstruction. This empirical research explored the empty case ejection patterns of an AK-family rifle: Type 56. Although the dispersion patterns were inconsistence in general, the experiment proposed a method to narrow down the shooter’s approximate location based on the identified center point of the ammunition cluster and post ejection test results of the rifle used in the shooting. The research also highlights the reasons for the inconsistencies seen in dispersion patterns of this rifle type based on the observations made during the research.

Item Type: Article
DOI/Identification number: 10.19080/JFSCI.2020.13.555864
Uncontrolled keywords: Assault rifle; Forensic based; Ejection patterns; Critical information; Physical evidence; Spent cartridges; Weapon position; Gun and ammunition; Crime scenes
Subjects: R Medicine > RA Public aspects of medicine > RA1001 Forensic medicine. Medical jurisprudence. Legal medicine
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Chris Shepherd
Date Deposited: 19 Nov 2020 22:08 UTC
Last Modified: 16 Feb 2021 14:16 UTC
Resource URI: (The current URI for this page, for reference purposes)
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