ASCLD/LAB Inspector 2001
DNA Auditor 2001
TX DPS Criminalists Association 1999
TX DNA Advisory Board 2000 – 2003
TX DNA Advisory Board 1996 – 1998
Southwestern Group on DNA Analysis Methods
(Texas Working Group DNA) 1995
International Association of Bloodstain Pattern Analysts 1994
Association of Crime Scene Reconstruction 1994
SouthWestern Association of Forensic Scientists 1990
American Society of Clinical Pathologists 1989