简介

I retired from the Texas Rangers and the Department of Public Safety after serving for 29 years. During my tenure I also held positions as Highway Patrol Trooper and Criminal Investigative Sergeant. I have been accepted in state court as an expert witness in bloodstain pattern analysis, death investigation, and shooting incident reconstruction. I have obtained certifications as Master Peace Officer, Police Instructor, Forensic Polygraph Examiner, Forensic Hypnotist, Special Investigator, and Hostage Negotiator. I serve as Deputy Director of the International Consortium for Forensic Identification and am the Founder of Lone Star Forensic Associates, Inc. I have presented training workshops and lectures on sexual assault and family violence, serial death investigation, interview and interrogation, forensic hypnosis, shooting incident reconstruction, DNA and biological evidence collection, and bloodstain pattern analysis. In addition to Baylor University, I have taught courses at Sam Houston State University, East Texas Baptist University, the University of Northern Colorado, and Missouri Western State University, as well as conducted courses and seminars in conjunction with the Southern Institute for Forensic Science.