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Toxicology Subcommittee

Members of the OSAC Toxicology Subcommittee
Members of the OSAC Toxicology Subcommittee (July 2019)

The Toxicology Subcommittee focuses on standards and guidelines related to the analysis of biological samples for alcohol, drugs, or poisons, and the interpretation of these results.  

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


Melissa Kennedy, Subcommittee Chair, ANSI National Accreditation Board

Marc LeBeau, Ph.D., Subcommittee Vice Chair, U.S. Federal Bureau of Investigation

Madeline Montgomery, Subcommittee Executive Secretary, U.S. Bureau of Investigation


Wendy Ray Adams, NMS Labs

Dan Anderson, Colorado Bureau of Investigation

Amanda M. Black, Washington State Patrol Toxicology Laboratory Division

Dan Dunsworth, Intoximeters, Inc.

Kenneth Emil Ferslew, Ph.D., East Tennessee State University

Lisa Fondren, Fondren Forensics

Marilyn Huestis, Ph.D., Self-Employed

Robert Johnson, Ph.D., Tarrant County (Texas) Medical Examiner's Office

Matthew Juhascik, Ph.D., Montgomery County (Ohio) Coroner's Office

Scott J. Larson, Montana State Crime Laboratory

Laura Liddicoat, Center for Forensic Science Research and Education

Suman Rana, Ph.D., Redwood Toxicology Laboratory

Mark Ruefenacht, Self-Employed

Madeleine J. Swortwood, Sam Houston State University

Rebecca Wagner, Virginia Department of Forensic Science

Ruth Ellen Winecker, Ph.D., RTI International

Dustin Tate Yeatman, Palm Beach County (Florida) Sheriff's Office Crime Laboratory

Affiliate and Task Group Participants
Toxicology Roadmap May 2019

OSAC Registry Approved Documents

OSAC Registry Ribbon

ANSI/ASB Standard 017, Standard Practices for Measurement Traceability in Forensic Toxicology, First Edition, 2018 (effective June 18, 2019).

ANSI/ASB 037, Best Practice Recommendation, Guidelines for Opinions and Testimony in Forensic Toxicology, First Edition, 2019 (effective November 5, 2019).

Documents in Process

Under Development:

  • Standard Practices for Measurement Uncertainty in Forensic Toxicology.
  • Standard for Breath Alcohol Instrument Specifications.
  • Quality Assurance Management Systems in Forensic Toxicology Laboratories.
  • Standard Practices for Proficiency Testing of Forensic Toxicology Laboratories.
  • Guidelines for Specimen Collection and Preservation in Forensic Toxicology.
  • Standard Practice for the Content of Forensic Toxicology Standard Operating Procedures.
  • Standard Method for Blood Ethanol Identification and Quantitation in Forensic Toxicology Laboratories.
  • Guidelines for Alcohol Calculations in Forensic Toxicology.
  • Taxonomy Guidelines in Forensic Toxicology.

Work Product Sent to SDO:

SDO Published:

Entered OSAC Registry Approval Process:

  • None currently.

Research & Development Needs

  • See the Research & Development Needs identified by the Toxicology 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.


  • 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 June 27, 2014, Updated December 10, 2019