Characterisation of gunshot residues from non-toxic ammunition and their persistence on the shooter’s hands
| Autor: | Sabrina Romanò, Fabio De-Giorgio, Carlo D’Onofrio, Luciano Gravina, Francesco Saverio Romolo, Sergio Abate |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Firearms
Time Factors Energy-dispersive X-ray analysis (EDX) Firearms discharge residue (FDR) Forensic Ballistics Gunshot residue (GSR) 01 natural sciences Pathology and Forensic Medicine Heavy metal free ammunitions (HMF) 03 medical and health sciences Cartridge 0302 clinical medicine Trace evidence Settore MED/43 - Medicina Legale Humans gunshot residues Forensic science Lead-free ammunitions non-toxic ammunitions (NTA) Scanning electron microscope (SEM) 030216 legal & forensic medicine Metalloids Skin Gunshot residue 010401 analytical chemistry Metallurgy Forensic Medicine Metals Light Hand non-toxic ammunitions (NTA) 0104 chemical sciences Ammunition Zinc Lead-free ammunitions Environmental science |
| Popis: | The aim of this work was to characterise three non-toxic ammunition (NTA) from the GECO and Fiocchi brands, which are available in the Italian market. Characterisation was carried out by considering both the elemental chemical composition and morphology, using scanning electron microscopy coupled with energy-dispersive X-ray analysis (SEM-EDS). Particles were collected from both the cartridge cases and the shooters’ hands after shooting tests. Six volunteers fired two shots for each ammunition. Several elements, such as aluminium, potassium, silicon, sulphur, titanium and zinc were found in gunshot residue (GSR) particles from different ammunition. We also studied the persistence of these types of GSR on the hands of the shooters in a range between 1 and 6 h after shooting. The GSR particles from the three NTA tested were found on the hands of shooters until 6 h after the shots. The characterisations undertaken in this work will be useful for specialists in forensic science and legal medicine to evaluate trace evidence from these new NTA in casework, as such formulations are in growth. |
| Databáze: | OpenAIRE |
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