In accordance with the SWGSTAIN Bylaws, Section V, the SWGSTAIN membership is organized into six (6) standing subcommittees that concentrate on different substantive areas of BPA. These subcommittees are described below.

Business and Strategic Planning
This subcommittee has been tasked to perform business and strategic planning for SWGSTAIN. The chair of this subcommittee is Mark Reynolds of the Western Australia Police.

Legal
This group has been tasked with assembling the scientific materials necessary to support the acceptance of BPA in courts of law at both the admissibility and trial levels. The chair of this subcommittee is Jeff Gurvis, Director, National Forensic Support Laboratory. 

Quality Assurance
This subcommittee is developing guidelines for a comprehensive quality assurance program for BPA that mirrors those developed by other recognized forensic disciplines. This subcommittee is chaired by LeeAnn Singley of Grayson Singley Associates, LLC.

Research
This group has been tasked with strengthening the discipline of bloodstain pattern analysis by promoting and nurturing sound scientific research.  This subcommittee is chaired by Michael Illes of the Ontario Provincial Police.

Taxonomy and Terminology
This subcommittee has been tasked to develop a comprehensive classification system for the organization of recognized bloodstain pattern types and a companion lexicon for use in describing these patterns. The chair of this subcommittee is Victor Gorman.

Training and Education
The members of this subcommittee have been tasked with developing guidelines for the basic educational and training requirements for practicing bloodstain pattern analysts and the basic content of specialized training courses in BPA. The chair of this subcommittee is Toby Wolson of the Miami-Dade Police Department.