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Understanding Gunshot Residue Evidence and Its Role in Forensic Science

Vachon, Crystina R. MS; Martinez, Michael V. MSFS

The American Journal of Forensic Medicine and Pathology: September 2019 - Volume 40 - Issue 3 - p 210–219
doi: 10.1097/PAF.0000000000000483
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Gunshot residue, or GSR, can be a valuable tool in forensic science, but its importance depends greatly on how it is utilized during an investigation and applied in criminal courts. This comprehensive review defines what constitutes GSR resulting from a discharged firearm. Sampling methods and analytical testing instrumentation will be discussed along with data interpretation and limitations of analysis.

From the Bexar County Forensic Science Center, San Antonio, TX.

Manuscript received January 3, 2019; accepted March 1, 2019.

The authors report no conflict of interest.

Reprints: Crystina R. Vachon, MS, Bexar County Forensic Science Center, 7337 Louis Pasteur, San Antonio, TX 78229. E-mail: cvachon@bexar.org.

Online date: June 24, 2019

© 2019 by Lippincott Williams & Wilkins.