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Gunshot Residue Subcommittee

Members of the OSAC Gunshot Residue Subcommittee
Members of the OSAC Gunshot Residue Subcommittee (July 2019)

The Gunshot Residue Subcommittee focuses on standards and guidelines related to the analysis of evidence that results from the deposition of or physical transfer of small or minute quantities of gunshot residue.

Officers | Members | OSAC Registry Approved Documents  Documents in Process | Research & Development Needs | Discipline-Specific Baseline Documents | Presentations


Thomas "Rusty" White, Subcommittee Chair, Texas Department of Public Safety Crime Laboratory Services

Trevor Gillis, Subcommittee Vice Chair, Santa Clara County (California) District Attorney's Crime Laboratory

Emily Weber, Subcommittee Executive Secretary, Hamilton County (Ohio) Coroner's Office


Candice Bridge, University of Central Florida

Jesse D. Brown, Defense Forensic Science Center

Douglas DeGaetano, Commonwealth of Virginia Department of Forensic Science

John Drugan, Massachusetts State Police Forensic Group

Dave Edwards, Jeol USA Inc.

Dana Greely, Colorado Bureau of Investigation

Monica Joshi, Ph.D., West Chester University of Pennsylvania

Debra Joslin, Ph.D., McCrone Associates

Mary Keehan, Virginia Department of Forensic Science

Michael McCarriagher, Georgia Bureau of Investigation

Danica Ommen, Iowa State University

Koren Powers, West Virginia State Police Forensic Laboratory

Amy Reynolds, Boston Police Crime Laboratory

Nicholas Ritchie, Ph.D., U.S. National Institute of Standards and Technology

Jason Schroeder, Harris County (Texas) Institute of Forensic Sciences

J. Matney Wyatt, U.S. Army Criminal Investigation Laboratory

OSAC Registry Approved Documents

  • None currently.

Documents In Process

Under Development:

  • Gunshot residue testimony.
  • Report writing, qualifying statements and interpretation.
  • Organic gunshot residue methodology, instrumentation and acceptability.
  • Inorganic gunshot residue.

Work Product Sent to SDO:

  • ASTM E1588-17 Standard Guide for Gunshot Residue Analysis by Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry.
  • WK8457 Training in the Forensic Examination of Gunshot Residue using Scanning Electron Microscopy-Energy Dispersive X-ray Spectrometry.

SDO Published: 

  • None currently.

Entered OSAC Registry Approval Process:

  • None currently.

Research & Development Needs

  • See the Research & Development Needs identified by the Gunshot Residue subcommittee.

Discipline-Specific Baseline Documents

The Forensic Science Standards Board (FSSB) has provided the opportunity for OSAC Subcommittees to identify baseline documents and reference materials that best reflect the current state of the practice within their respective disciplines. 

These documents contain practical information regarding these disciplines that can help forensic scientists, judges, lawyers, researchers, other interested parties and the general public, to better understand the nature, scope, and foundations of the individual disciplines as they are currently practiced.

It is important to note that the identification of these documents in this venue does not represent an endorsement by OSAC or NIST.  Only documents that are posted on the OSAC Registries constitute OSAC endorsement. All copyrights for these documents are reserved by their owners. Subcommittee position statements or responses to data collections by the subcommittee represent the consensus opinion of the subcommittee, not necessarily the position of the entire OSAC organization or NIST.

Gunshot Residue Compiled Bibliography (January 2017)

SWGGSR - Guide for Primer Gunshot Residue Analysis by Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry (2011)

ASTM E1588-16b (2016)

Final Report on Particle Analysis for Gunshot Residue Detection (1977)

ENFSI BPM for GSR (ver 1.0) (2003-2011)

ENFSI Guide for GSR (ver 2.0) (2008-2012)

Current Methods in Forensic Gunshot Residue Analysis (2000)

Chemical Analysis of Firearms, Ammunition, and Gunshot Residue (2008)


  • None currently.

In general, the development of standards and guidelines is transitioning from the Scientific Working Groups (SWGs) to the OSAC. Some SWGs will continue to operate to provide other resources within their discipline. The existing SWG documents will remain in effect until updated documents are disseminated by the OSAC or the SWG. SWGDAM will retain the responsibility for updating the FBI DNA Quality Assurance Standards.

– Forensic Science Standards Board: March 2015

Created July 11, 2014, Updated December 10, 2019