Methods for analysis of glass in glass-containing gunshot residue (gGSR) particles
Kelsey E Seyfang, Nick Lucas, Rachel S Popelka-Filcoff, Hilton J Kobus, Kahlee E Redman, K Paul Kirkbride
FORENSIC SCIENCE INTERNATIONAL | ELSEVIER IRELAND LTD | Published : 2019
When lead, barium and antimony, or lead, barium, calcium, silicon and tin are found together in particles associated with a shooting investigation they are considered characteristic of gunshot residue (GSR). Antimony and tin are often absent from the primer of many low calibre rimfire ammunitions, which are the type most commonly used in Australia. Therefore, the likelihood of characteristic particles forming during the firing process of such rimfire ammunition is significantly less than the likelihood of these particles arising from higher calibre ammunition. The majority of rimfire ammunition examined in this research contains ground glass in the primer, which functions as a frictionator. ..View full abstract
This project was supported by a Premier's Research and Industry Fund grant provided by the South Australian Government Department of State Development. This project also received contributions from the Ross Vining Research Fund, which is administered by Forensic Science SA.The authors acknowledge the expertise, equipment, and support provided by the Australian Microscopy and Microanalysis Research Facility (AMMRF) and the Australian National Fabrication Facility (ANFF) at Flinders University. We would specifically like to acknowledge expertise and assistance of Dr Animesh Basak from Adelaide Microscopy for assistance with FIB analysis, and Dr Jason Gascooke for his assistance with the SEM EDS system.