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Friction Ridge Subcommittee

Members of the OSAC Friction Ridge Subcommittee
Members of the OSAC Friction Ridge Subcommittee (July 2019)

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

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


Henry Swofford, Subcommittee Chair, HJS Consulting, LLC

Thomas Wortman, Subcommittee Vice Chair, U.S. Department of Defense, Defense Forensic Science Center

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


John Black, Black and White Forensics, LLC

Jessica Gabel Cino, Georgia State University College of Law

Simon Cole, Ph.D., University of California

Jennifer K. Cones, Internal Revenue Service - National Forensic Laboratory

Joshua Connelly, Douglas County Sheriff (Nebraska)

Maria Cuellar, University of Pennsylvania

Elizabeth Fontaine, U.S. Federal Bureau of Investigation

Nova Grilli, Charleston Police Department

Mandi Hornickel, Illinois State Police

Roadmap of Documents

Karen E. Johnson, U.S. Federal Bureau of Investigation

Sharon Kelley, University of Virginia

Louis Kriel, Georgia Bureau of Investigation

Michael Lavine, UMass Amherst

Andrew Pacejka, Utah Bureau of Forensic Services

Eric Ray, Idemia

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

Carl Speckels, City of Phoenix (Arizona) Crime Laboratory

Alice (Maceo) White, Las Vegas Metropolitan Police Department

OSAC Registry Approved Documents 

  • None currently.

Documents in Process

Under Development

  • Analysis of Friction Ridge Impressions.

  • Comparison & Evaluation of Friction Ridge Impressions.

  • Consultation.

  • Reporting Results.

  • ACE-V Process Map.

  • ABIS Best Practices.

  • ASB 015, Standard for the Examination of Friction Ridge Evidence.

  • ASB 016, Terminology Related to Friction Ridge Examination​​​​​​.

Work Product Sent to SDO:

SDO Published:  

  • None currently.

Entered OSAC Registry Approval Process:  

  • None currently.

Research & Development Needs

  • See the Research & Development Needs identified by the Friction Ridge 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.

Process Maps:

Friction Ridge Process Map (December 2019).


OSAC Friction Ridge Subcommittee's Response to the President’s Council of Advisors on Science and Technology's (PCAST) Request for Additional References - Submitted December 14, 2016.

OSAC Friction Ridge Subcommittee's Response to the President’s Council of Advisors on Science and Technology's (PCAST) Request for Information – Submitted December 2015.

SWGFAST Documents:

SWGFAST Position Statement on the Role of AFIS Ranks and Scores and the ACE-V Process.

SWGFAST Guideline for the Articulation of the Decision-Making Process for the Individualization in Friction Ridge Examination (Latent/Tenprint).

SWGFAST Standard Friction Ridge Automation Training (Latent/Tenprint).

SWGFAST Standard for the Application of Blind Verification of Friction Ridge Examinations (Latent/Tenprint).

SWGFAST Recommendations for Competency Testing of Noncertified Latent Print Examiners (Latent) Position Statement.

SWGFAST Standard for Consultation (Latent/Tenprint).

SWGFAST Standards for Examining Friction Ridge Impressions and Resulting Conclusions (Latent/Tenprint).

SWGFAST Standards for Examining Friction Ridge Impressions and Resulting Conclusions (Latent/Tenprint) Draft for Comment.

SWGFAST A Model Policy for Friction Ridge Examiner Professional Conduct (Latent/Tenprint).

SWGFAST Standards for Minimum Qualifications and Training to Competency for Friction Ridge Examiner Trainees (Latent/Tenprint).

SWGFAST Standard for a Quality Assurance Program in Friction Ridge Examinations (Latent/Tenprint).

SWGFAST Standard for the Definition and Measurement of Rates of Errors and Non-Consensus Decisions in Friction Ridge Examination (Latent/Tenprint).

SWGFAST Standard for Simultaneous Impression Examination (Latent).

SWGFAST Standard for Friction Ridge Impression Digital Imaging (Latent/Tenprint).

SWGFAST Standard for Reporting Friction Ridge Examinations (Latent/Tenprint).

SWGFAST Standard for the Documentation of Analysis, Comparison, Evaluation, and Verification (ACE-V) (Latent).

SWGFAST Standard for the Documentation of Analysis, Comparison, Evaluation, and Verification (ACE-V) in Tenprint Operations (Tenprint).

SWGFAST Standard for Friction Ridge Comparison Proficiency Testing Program (Latent/Tenprint).

SWGFAST Standard for the Review of Testimony of Friction Ridge Examiners (Latent/Tenprint).

SWGFAST Standard Terminology of Friction Ridge Examination (Latent/Tenprint).

SWGFAST Standard for the Technical Review of Friction Ridge Examinations (Latent/Tenprint).

SWGFAST Uniform Automated Fingerprint Identification System (AFIS) Feature Symbols Position Statement (Latent/Tenprint).

SWGFAST Standard for the Validation and Performance Review of Friction Ridge Impression Development and Examination Techniques (Latent/Tenprint).


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 January 21, 2020