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Bloodstain Pattern Analysis Subcommittee

OSAC Bloodstain Pattern Analysis SC icon only


The Bloodstain Pattern Analysis Subcommittee focuses on standards and guidelines related to the scientific detection and analysis of bloodstain patterns present at crime scenes and on associated evidence.

Officers | Members | Standards | Other Work Products



Holly Latham, Subcommittee Chair, Kansas Bureau of Investigation

Susan Rinehart, Subcommittee Vice Chair, Los Angeles Police Department

Celestina Rossi, Subcommittee Executive Secretary, Montgomery County Sheriff's Office


David Baldwin, Special Technologies Laboratory, USDOE

Nicole Blackwell, Kansas City Police Crime Laboratory

Todd Crosby, Georgia Bureau of Investigation

David Garber, Chula Vista Police Department

Elizabeth Geddes, US Department of Justice, Affiliate, (Legal Task Group representative)

Thomas Griffin, Griffin Forensic

Bloodstain Pattern Analysis Affiliates

Jeff Gurvis, National Forensic Support Laboratory

Rebecca Hooks, Illinois State Police Crime Scene Services Command

Catherine Knutson, Minnesota Bureau of Criminal Apprehension (Quality Task Group representative)

Zack Kowalske, City of Roswell Police Department

Niki Osborne, Human Factors Training and Consultancy, New Zealand, Affiliate, (Human Factors Task Group representative)

Jennifer Preisig, Massachusetts State Police Crime Laboratory

Lauren Sautkulis, San Diego Sheriff's Regional Crime Laboratory

Peter Valentin, University of New Haven

Haonan Wang, Colorado State University (Statistics Task Group representative)

Jeffrey Wolf, Texas Department of Public Safety

Toby L. Wolson, M.S., F-ABC, Noslow Forensic Consultations, LLC


On the OSAC Registry

OSAC Registry Ribbon
  • ANSI/ASB Standard 032, Standards for a Bloodstain Analyst's Training Program, First Edition, 2020 (added January 5, 2023).
  • ASB Technical Report 033, Terms and Definitions in Bloodstain Pattern Analysis, First Edition, 2017 (added June 3, 2020).
  • OSAC 2021-N-0039, Standard for Mentorship Program in Bloodstain Pattern Analysis (added April 5, 2022 and sent to ASB for further development and publication). 
  • OSAC 2022-N-0010, Standard for the Development of an Accredited Bloodstain Pattern Analyst Certification Program (added December 6, 2022 and sent to ASB for further development and publication).

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

At an SDO for Further Development & Publication

  • OSAC 2021-N-0039, Standard for Mentorship Program in Bloodstain Pattern Analysis (OSAC Proposed Standard on the Registry).
  • OSAC 2022-N-0010, Standard for the Development of an Accredited Bloodstain Pattern Analyst Certification Program (OSAC Proposed Standard on the Registry).
  • REVISION to ASB 030, Standard for a Quality Assurance Program in Bloodstain Pattern Analysis, Second Edition, 20xx.
  • REVISION to ASB 072, Standard for the Validation of Procedures in Bloodstain Pattern Analysis, Second Edition, 20xx.
  • Standard for Developing Standard Operating Procedures in Bloodstain Pattern Analysis.

Under Development

  • OSAC 2021-S-0011, Standard for Technical Review of Bloodstain Pattern Analysis Reports.
  • OSAC 2022-S-0030, Standard Methodology in Bloodstain Pattern Analysis.
  • Standard for Documenting Bloodstains and Bloodstain Patterns at Scenes.
  • Standard for Bloodstain Pattern Analysis on Textiles (clothing and absorbent materials).
  • Standard for Determining Area of Convergence and Area of Origin. 

Other Work Products

Process Maps

Research & Development Needs

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 July 11, 2014, Updated February 15, 2023