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Friction Ridge Subcommittee

OSAC Friction Ridge SC icon


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 | Standards | Other Work Products




Heidi Eldridge, Subcommittee Chair, George Washington University

Joshua Connelly, Subcommittee Vice Chair, Douglas County Sheriff's Office

Andrew Pacejka, Subcommittee Executive Secretary, Utah Bureau of Forensic Services


Brianne Breedlove, Uncover Forensics

Simon Cole, Ph.D., University of California

Jack Flanders, Texas Department of Public Safety Crime Laboratory

Kalisha Gill, U.S. Army Criminal Investigation Laboratory (USACIL)

Nova Grilli, Charleston Police Department

Richard Gutierrez, Law Office of the Cook County Public Defender (Legal Task Group representative)

Sharon Kelley, University of Virginia (Human Factors Task Group representative)

Louis Kriel, Georgia Bureau of Investigation

Amanda Luby, Swarthmore College (Statistics Task Group representative)

Delilah Ortiz-Meyer, U.S. Army Criminal Investigation Laboratory (USACIL) (Quality Task Group Representative)

Michelle Machalka, Federal Bureau of Investigation 

Elizabeth Molina, Dallas Police Department

Eric Ray, IDEMIA

Norberto Rivera, Bureau of Alcohol, Tobacco, Firearms and Explosives

Jim Snaidauf, IRS - Criminal Investigations National Forensic Laboratory

AshLee Taylor, Federal Bureau of Investigation

Christie VanAndel, Nebraska State Patrol

Friction Ridge Affiliate List


On the OSAC Registry

OSAC Registry Ribbon
  • ANSI/ASB Best Practice Recommendation 142, Best Practice Recommendations for the Resolution of Conflicts in Friction Ridge Examination. 2022. 1st. Ed. (added February 6, 2024).  
  • ANSI/ASTM E3235-21, Standard Practice for Latent Print Evidence Imaging Resolution (NOTE: This document was drafted by OSAC's Video/Imaging Technology & Analysis Subcommittee and added to the Registry June 7, 2022).
  • OSAC 2021-N-0020, Best Practice Recommendations for Limited Examinations (added April 5, 2022 and sent to ASB for further development and publication). 
  • OSAC 2022-S-0012, Standard for Proficiency Testing in Friction Ridge Examinations (added June 7, 2022 and sent to ASB for further development and publication). 
  • OSAC 2022-N-0033, Standard for Processing Evidence for the Detection of Friction Ridge Impressions (added September 6, 2022 and sent to ASB for further development and publication). 
  • OSAC 2022-S-0038, Standard for Feature Selection in Friction Ridge Examination (added September 5, 2023).

Published by a Standards Developing Organization (SDO) & Eligible for the OSAC Registry

At an SDO for Further Development & Publication

All documents listed below are completed work products of the OSAC Friction Ridge Subcommittee and have passed a rigorous technical and quality review by the subcommittee. The subcommittee encourages the forensic science community to implement these proposed standards.

Under Development

  • OSAC 2023-N-0012, Best Practice Recommendations for the Acceptance of a Request for Friction Ridge Examinations.
  • OSAC 2023-S-0026, Task-Relevant Information in Friction Ridge Examinations. 
  • Detection of Friction Ridge Impressions.
  • Automated Biometric Identification Systems (ABIS) Best Practices.
  • Method Validation.
  • Performance Checks.
  • Recruiting/Selection Requirements (for pattern recognition disciplines).

Other Work Products

Process Maps

Reference Documents

Research & Development Needs

Standards Development Maps

Webinars, Presentations & Training Videos

Discipline-Specific Bibliographies and Bibliographic References 

These documents may contain information to help forensic scientists, judges, lawyers, researchers, and other readers better understand the nature, scope, and foundations of the individual disciplines as currently practiced. The identification of these documents does not represent an endorsement by OSAC or NIST. Only standards that are posted on the OSAC Registry and Technical Guidance documents, are endorsed by OSAC. The referenced documents may be subject to copyright. Note: Subcommittee position statements or responses to data collections by the subcommittee do not necessarily represent the position of OSAC or NIST.

Created October 16, 2014, Updated June 3, 2024