TY - JOUR PY - 2024// TI - Gunshot residue (GSR): frequency of residue types encountered in case work and background levels on control samples JO - Forensic science international A1 - Gorey, Brian A1 - Boyle, Michelle A1 - O'Brien, Cliona M. A1 - O'Shaughnessy, John A1 - Daly, Dyan A1 - Forde, Annette SP - e112029 EP - e112029 VL - 359 IS - N2 - The evaluation of criminal cases involving the discharge of a firearm requires reliable and up to date information regarding the transfer and persistence of gunshot residue (GSR). Similarly, knowledge of background levels of GSR on relevant populations and awareness of the potential for contamination/secondary transfer is essential. In this paper we build on previous work published by this laboratory and provide an update on the frequency of gunshot residue types in discharged cartridge casings (DCC) encountered in casework within the Republic of Ireland. In conjunction, an examination of the types of firearms encountered in casework and the associated residue types is undertaken. Finally, a review of levels of GSR particles detected on control samples taken from members of An Garda Síochána, the Irish police is detailed. Control samples are taken before a police officer samples a detainee suspected of involvement in an incident where a firearm was discharged and/or subsequently handled.
Language: en
LA - en SN - 0379-0738 UR - http://dx.doi.org/10.1016/j.forsciint.2024.112029 ID - ref1 ER -