ISSN: 0022-1198
CODEN: JFSCA
Page Count: 6

Distribution of Lead and Barium in Gunshot Residue Particles Derived from 0.22 Caliber Rimfire Ammunition
Kobus, H
Assistant Director—Science, Forensic Science,

Sarvas, I
Assistant Director—Science, Forensic Science,

Coumbaros, J
Ian Wark Research Institute, University of South Australia, Mawson Lakes,

Paul Kirkbride, K
Assistant Director—Science, Forensic Science,

(Received 25 September 2000; accepted 25 February 2001)

Abstract

0.22 caliber rimfire ammunition is commonly encountered in firearms incidents in Australia. This paper reports on work which has confirmed the nonhomogeneous nature of gunshot residue (GSR) particles and that the lead and barium distribution within particles varies significantly with the particle size and structure. The outcome has been an improved understanding of how the particle formation influences the ability to determine the origin of GSR derived specifically from 0.22 caliber rim fire ammunition.

Keywords:
forensic science, gunshot residue, scanning electron microscopy, 0.22 caliber ammunition

Paper ID: JFS15156J
DOI: 10.1520/JFS15156J
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