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DNA recovery from fired hollow point ammunition

Booth, N. and Chapman, B.ORCID: 0000-0001-7518-6645 (2019) DNA recovery from fired hollow point ammunition. Australian Journal of Forensic Sciences, 51 (Supp. 1). S107-S110.

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Firearm-related exhibits are often found at crime scenes. These exhibits may include the firearm, cartridges, cartridges cases or bullets. As ammunition needs to be handled to load the weapon, regardless of the action or loading type, DNA may be deposited onto the ammunition via touch. As reproducible DNA profiles have been obtained from fired cartridge casings and Improvised Explosive Device (IED) fragments, it is possible that quantifiable amounts of DNA could be recovered from fired bullets. A series of 40 Winchester PowerPoint 22LR 42 grain HP Copper Plated bullets were loaded with serially diluted cell suspensions obtained from a female donor. These were shot into 500 sheet reams of A3 paper for capture and returned to a sterile DNA laboratory for removal, extraction and quantification of DNA. Repeatable partial profiles with five reportable loci pairs consistent with the cell donor were obtained in one replicate of the neat sample. Weak partial profiles were also present in 1:2, 1:5 and 1:10 dilutions. To our knowledge, this is the first reported evidence of DNA surviving the cycle of fire and being recovered from a fired bullet under controlled conditions.

Item Type: Journal Article
Murdoch Affiliation(s): Medical, Molecular and Forensic Sciences
Publisher: Taylor and Francis Ltd.
Copyright: © 2019 Australian Academy of Forensic Sciences
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