Utilization of X-ray Computed Tomography for the Exclusion of a Specific Caliber and Bullet Type in a Living Shooting Victim

Journal of Forensic Sciences
Adriaan A S Marais, Herman J Dicks

Abstract

A bystander claimed to have been shot by a police officer, and CT scans were used to match qualitative and quantitative aspects of the unremoved bullet with police issued 9 mm Luger ammunition. CT scan methodology proved a valid approach for the measurement of bullets based on calculated measurement capability and correlation with "gold standard" physical measurement by vernier caliper. Measurements regarding length and base diameter, as well as length/diameter ratio, were insufficient to unambiguously identify a specific caliber, or a bullet of specific mass within a caliber class. It was, however, possible to exclude a bullet of specific design and mass with well-characterized precision and accuracy values under selected CT scan conditions. A 9 mm Luger bullet (115 gr FMJ RN) was excluded from involvement in a shooting based on qualitative bullet shape combined with length, base, and ratio measurements of the bullet in-situ for the victim.

References

Feb 1, 1991·Radiology·R P BixlerD Thickman
Mar 1, 1990·AJR. American Journal of Roentgenology·G D Dodd, R F Budzik
Aug 6, 2011·Forensic Science International : Synergy·Jagadeesha KumarMark A Williams
Sep 25, 2012·Forensic Science International : Synergy·Erwin VermeijRob Hermsen
Nov 9, 2016·SAGE Open Medicine·Yassir NawazNajam Wasty

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