Transfer and Distribution of Gunshot Residue through Glass Windows1. Issue 4 (8th May 2017)

• Record Type: Journal Article
• Authors: Greely, Dana; Weber, Emily
• Is Part Of: Journal of forensic sciences. Volume 62:Issue 4(2017)
• Page Start: 869
• Page End: 873
• Publication Date: 2017-05-08
• Subjects: forensic science -- primer residue -- gunshot residue -- gunshot victims -- scanning electron microscopy (SEM) -- energy dispersive X‐ray spectroscopy (EDS) -- primary target -- secondary target -- downrange -- deposition; Medical jurisprudence -- Periodicals; Forensic sciences -- Periodicals; Forensic Medicine -- Periodicals; Gerechtelijke geneeskunde; Gerechtelijke chemie; Gerechtelijke psychiatrie; 363.2505
• DOI: 10.1111/1556-4029.13331
• Languages: English
• ISSNs: 0022-1198

Abstract

Abstract: Research into the deposition patterns of primer gunshot residue (GSR) beyond a primary target was previously nonexistent. This study aimed to determine the deposition patterns of GSR once a bullet passed through an initial target and continued on its path into additional targets. Multiple repetitions were performed to assess the GSR deposition patterns after a bullet was shot through a closed window into either a dummy or a wall within an enclosed room. Samples were taken from both the primary and secondary target holes as well as from nontarget areas. Significant amounts of GSR were found on all samples. The results show that GSR continues to be deposited along the path of the bullet after passing through a primary glass target. These findings reiterate the lack of probative value in collecting GSR samples from gunshot victims even if they are in an enclosed area separate from the shooter.