Secondary transfer of organic gunshot residues: Empirical data to assist the evaluation of three scenarios.
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- doi: 10.1016/j.scijus.2018.08.007
- issn: 1355-0306
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A.L. Gassner et al., « Secondary transfer of organic gunshot residues: Empirical data to assist the evaluation of three scenarios. », Serveur académique Lausannois, ID : 10.1016/j.scijus.2018.08.007
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Résumé
The present study aimed at providing data to assess the secondary transfer of organic gunshot residues (OGSR). Three scenarios were evaluated in controlled conditions, namely displacing a firearm from point A to point B, a simple handshake and an arrest involving handcuffing on the ground. Specimens were collected from the firearm, the hands of the shooter and the non-shooter undergoing the secondary transfer in order to compare the amounts detected. Secondary transfer was observed for the three scenarios, but to a different extent. It was found that displacing a firearm resulted in secondary transfer in