Priority Action Report 

Bloodstain Pattern Analysis Subcommittee 

Physics\Pattern Scientific Area Committee 

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

October 5, 2018 

International Association of Bloodstain Pattern Analysts 

Annual Training Conference 
 

 

 

 

 

 

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. 

2
 

 

 

 

 

 

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 appointments to fill positions occupied by 

term limited members is in 2019. 

• To become an OSAC member, you must complete an 

OSAC application at https://www.nist.gov/forensics/osac- application.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. 

3
 

 

 

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 2021 Jeff.gurvis@nfslab.com 

Support Laboratory 

Executive Holly Latham Kansas Bureau of 2019 bloodstainanalyst@live. 

Secretary Investigation com 

4 
Subcommittee Members 

# Name Organization Term Email 

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

Leah Innocci 

Jason S. Simser, PhD 

Gabriele Suboch, PhD 

Peter Valentin, PhD 

Haonan Wang, PhD 

Gary Wilgus 

Kevin Winer Kansas City Police Department 5 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

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

Wyoming State Crime Laboratory 2019 Innocci1@gmail.com 

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

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

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

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

Susan Rinehart LAPD Crime Laboratory 2021 g9670@lapd.online 

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

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

MN Bureau of Criminal Apprehension 2019 jason.simser@state.mn.us 

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

Northcentral University 2019 forensics25@hotmail.com 

University of New Haven 2020 pvalentin@newhaven.edu 

Colorado State University 2021 wanghn@stat.colostate.edu 

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

2021 kevin.winer@kcpd.org 
Past 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 James O. Pex, MS International Forensic Experts, LLC 2014-2016 

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

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 6 

 

 

 

 

 
 

 

 

 

 

 

AAFS Standards Board (ASB) 

The OSAC BPA Subcommittee is using the AAFS Standards 

Board (ASB) 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) 

7
 

 

 

 

 

 

 

 

 

DOCUMENTS CURRENTLY 

AT THE ASB 

•Standard for Validation of Procedures in 

Bloodstain Pattern Analysis (S) 

•Standards for a Bloodstain Pattern Analyst’s 

Training Program (S) 

•Guidelines for Report Writing in Bloodstain 

Pattern Analysis (BPR) 

•Standards for a Quality Assurance Program 

in Bloodstain Pattern Analysis (S) 

8
 

 

 

 

DOCUMENTS PUBLISHED 

BY THE ASB 

•ASB Technical Report 033, First Edition 

2017: Terms and Definitions in Bloodstain 

Pattern Analysis (TR) 

9
 

 

 

 

 

 

Terminology Task Group 

•Methodology for the classification of bloodstain 

patterns (Taxonomy): Nearing 1st draft completion 

for discussion by the SC 

•Conclusion statements for BPA reconstructions: 

Work in progress 

Task Group Name: Terminology 

Task Group Chair Name: Jeremiah Morris 

Task Group Chair Contact Information: 

jeremiah.morris@jocogov.org 

10 
 

 

 

 

 

 

 

Reports and Validation Task Group 

•Methodology for performing bloodstain pattern 

analysis: Nearing 1st draft completion for 

discussion by the SC 

Task Group Name: Reports and Validation 

Task Group Chair Name: Tom Griffin 

Task Group Chair Contact Information: 

grifclue@comcast.net 

11 
 

 

 

 

 

 

 

Training and Education Task Group 

•Certification criteria for a bloodstain pattern 

analyst: Nearing 1st draft completion for 

discussion by the SC 

Task Group Name: Training and Education 

Task Group Chair Name: Kenneth Martin 

Task Group Chair Contact Information: 

kf.martin@verizon.net 

12 
 

 

 

 

 

 

 

 

Quality Assurance and Standard

Operating Procedure Task Group 

•Standard operating procedures for a bloodstain 

analysis program: Ready for release to the PSAC 

•Proficiency testing criteria for a bloodstain pattern 

analyst: Nearing 1st draft completion for discussion 

by the SC 

•Standards for technical review of BPA reports: 

Work in progress 

Task Group Name: QA and SOP 

Task Group Chair Name: LeeAnn Singley 

Task Group Chair Contact Information: 

lsingleygsa@msn.com 

13 
 

 

 

 

 

 

 

 

 

Research Task Group 

•BPA Research needs: On going 

•BPA Foundations document: Released to PSAC 

•BPA Process Map: Nearing completion 

•OSAC BPA road map and gap analysis: Nearing 

completion 

•BPA Bibliography: Updated through December

2017 

Task Group Name: BPA Research 

Task Group Chair Name: Kevin Winer 

Task Group Chair Contact Information: 

kevin.winer@kcpd.org 

14 
OSAC BPA SUBCOMMITTEE 

WEBSITE 

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

OSAC WEBSITE 

•https://www.nist.gov/topics/organizationscientific-area-committees-forensic-science

15
Questions?

16