Priority Action Report

Bloodstain Pattern Analysis 

Subcommittee

Physics/Pattern Interpretation Scientific Area Committee

Toby L. Wolson, M.S., F-ABC

August 14, 2019

International Association for Identification

104th International Educational Conference

Reno, NV
Bloodstain Pattern Analysis

• The Bloodstain Pattern Analysis 

Subcommittee will focus on standards 

and guidelines related to the scientific 

detection and analysis of bloodstain 

patterns present at crime scenes and on 

associated evidence.

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BPA SUBCOMMITTEE

MEMBERSHIP & AFFILIATES

• All members are limited to 2 consecutive terms. After which 

they must step away for 1 year*.

• The 1st cycle of members leaving the BPA Subcommittee due to 

term limits is occurs on September 30, 2019.

• To become an OSAC member, you must complete an OSAC 

application at https://www.nist.gov/forensics/osacapplication.cfm. 

• The BPA Subcommittee currently has 50+ BPA experts that 

have volunteered to be affiliates. They represent 6 countries, 

public, private, academia, law enforcement, crime scene 

investigations, crime laboratory, and judicial sectors.

• *Term limited members may return immediately if appointed to 

a different committee or subcommittee. For all members, 

appointment to a new committee or subcommittee starts the 

term limit clock over at zero.

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BPA Subcommittee Leadership

Position Name Organization Term Email

Chair Toby L. 

Wolson, M.S.*

Noslow Forensic 

Consultations, LLC

2019 toby.wolson@gmail.com

Vice Chair Jeff Gurvis National Forensic 

Support Laboratory

2021 Jeff.gurvis@nfslab.com

Executive 

Secretary

Holly Latham* Kansas Bureau of 

Investigation

2019 bloodstainanalyst@live.

com

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*2019 Term limited member of the BPA Subcommittee

*2019 Term limited member of the Physics/Pattern Interpretation Scientific Area Committee (PSAC)
BPA Subcommittee Members

# Name Organization Term Email

1 Tom J. Griffin Bevel, Gardner & Associates 2020 grifclue@comcast.net

2 Cristina Gonzalez‡ Los Angeles Sheriff’s Department 2019 ccgonzal@lasd.org

3 Kenneth Martin, MS* Bevel, Gardner & Associates 2019 kf.martin@verizon.net

4 Stephen Michielsen, PhD North Carolina State University 2021 smichie@ncsu.edu

5 Jeremiah Morris Johnson County Sheriff’s Office 2020 jeremiah.morris@jocogov.org

6 Elizabeth Pierri, MSFS Naval Criminal Investigative Service 2020 elizabeth.pierri@ncis.navy.mil

7 Susan Rinehart LAPD Crime Laboratory 2021 g9670@lapd.online

8 Elizabeth Richards, PhD USAF Office of Special Investigations 2020 elizabeth.richards@us.af.mil

9 Celestina Rossi Montgomery County Sheriff’s Office 2020 celestina.rossi@mctx.org

10 Jason S. Simser, PhD* MN Bureau of Criminal Apprehension 2019 jason.simser@state.mn.us

11 LeeAnn Singley, MS Grayson Singley Associates 2021 lsingleygsa@msn.com

12 Gabriele Suboch, PhD* Northcentral University 2019 forensics25@hotmail.com

13 Peter Valentin, PhD University of New Haven 2020 pvalentin@newhaven.edu

14 Haonan Wang, PhD Colorado State University 2021 wanghn@stat.colostate.edu

15 Gary Wilgus Ohio Bureau of Criminal Investigation 2020 gary.wilgus@ohioattorneygeneral.gov

16 Kevin Winer Kansas City Police Department 2021 kevin.winer@kcpd.org

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‡End of first term September 30, 2019

*2019 Term limited member of the BPA Subcommittee
# Name Organization Term Email

BPA SC Chair

1 Holly Latham Kansas Bureau of Investigation 2022 bloodstainanalyst@live.com

BPA SC Members

2 Nicole Blackwell Kansas City Police Department 2022 Nicole.Blackwell@kcpd.org

3 Todd Crosby Georgia Bureau of Investigation 2022 Todd.Crosby@gbi.ga.gov

4 Rebecca Hooks Illinois State Police 2022 Rebecca_Hooks@isp.state.il.us

5 Lauren Sautkulis San Diego County Sheriff’s Dept. 2022 Lauren.Sautkulis@sdsheriff.org

6 Toby L. Wolson, M.S. Noslow Forensic Consultations, LLC 2022 Toby.Wolson@gmail.com

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New BPA Subcommittee Members: 

October 1, 2019
Past BPA Subcommittee Members

# Name Organization Served

1 Almon Brown S.C. Law Enforcement Division (SELD) 2014-2016

2 Kim Clements, MSFS D.C. Consolidated Forensic Laboratory 2014-2018

2 Peter De Forest, DCrim Retired Professor/Consultant 2014-2017

3 Leah Innocci Wyoming State Crime Laboratory 2014-2019

4 James O. Pex, MS International Forensic Experts, LLC 2014-2016

6 Ralph R. Ristenbatt, III The Pennsylvania State University 2014-2016

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AAFS Academy Standards Board (ASB) 

The OSAC BPA Subcommittee is using the Academy Standards 

Board as the Standards Development Organization (SDO) for 

completed documents. The ASB has three types of documents.

• Standards (S)

• Technical Report (TR)

• Best Practice Recommendations (BPR)

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https://www.asbstandardsboard.org/
Documents Published by the ASB

• ASB Technical Report 033, Terms and Definitions in 

Bloodstain Pattern Analysis, 1st Edition, 2017

• ANSI/ASB Standard 072, Standard for Validation of 

Procedures in Bloodstain Pattern Analysis, 1st

Edition, 2019

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http://www.asbstandardsboard.org/published-documents/bloodstain-pattern-analysispublished-documents/
Documents at the ASB

• ANSI/ASB Standard 030, Standard for a Quality 

Assurance Program in Bloodstain Pattern Analysis, 1st

Edition; Ready for public comment

• ANSI/ASB Standard 031, Guidelines for Report Writing 

in Bloodstain Pattern Analysis, 1st Edition - Awaiting 

publication approval

• ANSI/ASB Standard 032, Standards for a Bloodstain 

Pattern Analyst’s Training Program, 1st Edition; Open for 

recirculation* public comment until 09/23/19 ‡

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* Re-circulation is only accepted on revised sections of a document, comments made to text not revised 

from the original public comment period will not be accepted.

‡ http://www.asbstandardsboard.org/notice-of-standard-development-and-coordination/
Documents in the OSAC Registry 

Approval Process

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• ASB Technical Report 033, Terms and Definitions in 

Bloodstain Pattern Analysis, 1st Edition, 2017

• ANSI/ASB Standard 072, Standard for Validation of 

Procedures in Bloodstain Pattern Analysis, 1st

Edition, 2019
Documents at the PSAC for 

Review and Comment*

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• Guideline for Proficiency Testing in Bloodstain 

Pattern Analysis

• Standards for Developing Standard Operating 

Procedures in Bloodstain Pattern Analysis

*The documents are also sent to the 3 OSAC resource committees for review and 

comment.

• Human Factors Committee

• Legal Resource Committee

• Quality Infrastructure Committee
Terminology Task Group 

Task Group Name: Terminology

Task Group Chair Name: Jeremiah Morris

Task Group Chair Contact Information: 

jeremiah.morris@jocogov.org

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•Methodology for the classification of bloodstain 

patterns (Taxonomy): Nearing 1st draft 

completion for discussion by the SC
Reports and Validation Task Group

Task Group Name: Reports and Validation

Task Group Chair Name: Tom Griffin

Task Group Chair Contact Information: 

grifclue@comcast.net

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•Methodology for performing bloodstain pattern 

analysis: 1st draft nearing completion
Training and Education Task Group

Task Group Name: Training and Education

Task Group Chair Name: Kenneth Martin

Task Group Chair Contact Information: 

kf.martin@verizon.net

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•Standard for a Certification Program for Bloodstain 

Pattern Analysts: 1st draft nearing completion
Quality Assurance and Standard 

Operating Procedure Task Group

Task Group Name: QA and SOP

Task Group Chair Name: LeeAnn Singley

Task Group Chair Contact Information: 

lsingleygsa@msn.com

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•Standard for technical review of BPA reports: 1st

draft nearing completion
Research Task Group

Task Group Name: BPA Research

Task Group Chair Name: Kevin Winer

Task Group Chair Contact Information: 

kevin.winer@kcpd.org

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•Standard for Documentation and Review of Case 

Experimentation: Work in progress

•BPA Research needs: Updated July 2019

•BPA Process Map: Being tested for gaps

•BPA Bibliography: Updated through December 

2018
OSAC BPA Subcommittee Webpage

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•https://www.nist.gov/topics/forensicscience/bloodstain-pattern-analysis-subcommittee

•https://www.nist.gov/topics/organization-scientificarea-committees-forensic-science

OSAC Webpage
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Questions?