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Friction Ridge Subcommittee

Members of the OSAC Friction Ridge Subcommittee
Members of the Friction Ridge Subcommittee at the July 2019 OSAC Meeting in Orlando, Florida.

Officers | Members | Standards | Discipline-Specific Baseline Documents | Research & Development Needs | Presentations

The Friction Ridge Subcommittee focuses on standards and guidelines related to the forensic examination of friction ridge detail from the hands and feet.


Henry Swofford, Subcommittee Chair, HJS Consulting, LLC

Joshua Connelly, Subcommittee Vice Chair, Douglas County Sheriff (Nebraska)

Carey Hall, Subcommittee Executive Secretary, Minnesota Bureau of Criminal Apprehension


John Black, Black & White Forensics, LLC

Jessica Cino Gabel, Georgia State University College of Law (Legal Representative)

Simon Cole, Ph.D., University of California

Maria Cuellar, University of Pennsylvania

Nova Grilli, Charleston Police Department

Mandi Hornickel, Illinois State Police

Karen E. Johnson, Federal Bureau of Investigation

Roadmap of Documents

Sharon Kelley, University of Virginia (Human Factors Representative)

Louis Kriel, Georgia Bureau of Investigation

Andrew Pacejka, Utah Bureau of Forensic Services

Eric Ray, Idemia

Noberto Rivera, U.S. Postal Inspection Service - Forensic Laboratory Services

Elizabeth Small, Federal Bureau of Investigation

Carl Speckels, City of Phoenix (Arizona) Crime Laboratory


Tier 1: On the OSAC Registry

  • None currently.

Tier 2: Published by an SDO

  • None currently.

Tier 3: Sent to an SDO

Tier 4: Under Development

  • Standard for the Examination of Friction Ridge Evidence.
  • Best Practice Recommendation for Analysis of Friction Ridge Impressions.
  • Best Practice Recommendation for Comparison and Evaluation of Friction Ridge Impressions.
  • Best practice Recommendation for Automated Biometric Identification Systems.
  • Standard for Friction Ridge Examination Proficiency Testing Program.
  • Standard List of Friction Ridge Features: Definitions, Limitations, and Documentation.
  • Best Practice Recommendation for Testimony Monitoring.
  • Standard for the Validation and Verification of Friction Ridge Development and Examination Methods.
  • Terminology Related to Friction Ridge Examination.

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.

Process Map:


SWGFAST Documents:

Research & Development Needs


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 October 16, 2014, Updated June 23, 2020