1Department of Forensic Science, SGT University, Gurgaon, Haryana, India
2Ballastic Division Central Forensic Science LaboratoryCentral Bureau of Investigation, New Delhi, DelhiIndia
3Department of Electronics and Communication Engineering, Manav Rachna International Institute of Research and Studies, Faridabad, Haryana India India
4Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, DelhiIndia
*Corresponding Author Leena Kumari, Department of Forensic Science, SGT University Gurgaon, Haryana, India Email: leena.bhardwaj2000@gmail.com
Online published on 15 February, 2021.
The detection and interpretation of gunshot residue (GSR) play an important role in the investigation of firearm-related crimes.In this study, GSR samples were collected on the target cloth and paper at various distances to estimate the firing distanceon target cloth materials by visual inspection, chemical enhancement and instrumental analysis. Results revealed that the analysis focuses on inorganic particles incorporating elements derived from the primer however, organic analytes were non-significant. IGSR analysis was performed using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX). GSR and mean size (0.26 p.m) of the particles were measured.
Gunshot residue (GSR), Firing distance, Scanning Electron Microscope (SEM), Nitroglycerin and diphenylamine, Propellant charge, Primer
