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- Title
Comparative Study of Transfer Medias of Gunshot Residues at Impact Point.
- Authors
GAO Menglin; SHEN Yao; LI Yiyi; MIAO Cuiying
- Abstract
In order to investigate the color test effect, influencing factors, extraction times, quality of subsequent hyperspectral analysis, ease of use, and cost of the transfer medias used in Gunshot Residues (GSR) at impact point, BenchKote, photo paper (230 g), color laser paper (160 g), white cardboard (260 g), super slippery paper (300 g) were compared to wet extract GSR from textiles, and used dithiooxamide (DTO), sodium rhodizonate to visualize GSR, and then performed a confirmatory analysis of the hyperspectral imager. And the color laser paper (160 g) was identified as the best choice. The experiment involved two gun calibers six distances and the dryness and wetting constitutions of textiles. The combination of chemical color test and hyperspectral imager was explored. It provided the possibility for multiple extractions to collect and fix evidence, rapid appearance on the impact point, analyze the gun type and shooting distance.
- Subjects
GUNSHOT residues; CHEMICAL testing; COMPARATIVE studies
- Publication
Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue, 2022, Vol 12, Issue 2, p97
- ISSN
2095-1035
- Publication type
Article
- DOI
10.3969/j.issn.2095-1035.2022.02.017