Identification of Shooter using Scanning Electron Microscope Coupled with Energy Dispersive X-Ray (Sem-Edxa) Technique: A Case Study

Authors: Murthy SS* and Rajkumar G

Volume 3, Issue 1

Abstract

In a shooting incident on 26.11.2012, the gunshot residue (GSR) sample were collected by the police department using double edged stubs from both the hands of the suspected shooter. These two stubs were sent to the laboratory for the presence of gunshot residue analysis. The search was carried out for firearm and ammunition later. The exhibits including stubs were sent to the laboratory on 21.04.2017. The analysis of the stubs was conducted using Scanning Electron Microscope Coupled with Energy Dispersive X-Ray (Sem-Edxa– Model Leo1430vp/1430vp-06-56) Technique. The GSR particles viz., Lead (Pb), Barium (Ba) and Antimony (Sb) were detected indicating his presence in the shooting incidence [1,2]. The specific case examination focuses on the detection of these particles even after five years after collection of these stubs and their careful preservation.

Keywords: Stubs; GSR; SEM-EDXA Technique; Identification of Shooter

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