Associates

I have over forty-three years as a practicing forensic scientist including twenty three years with government crime labs in Texas (Fort Worth Police Department), Oklahoma (Tulsa Police Department) and Arizona (Arizona Department of Public Safety), retiring in 1996. During my 13 years with the Arizona DPS I supervised a crime scene investigation unit that served the northern half of the state and worked closely with criminal investigators and prosecutors throughout my service area in the preparation of criminal cases for grand juries and at trial including a number of very high profile cases (State of Arizona v. Richard Bible and State of California v. John Famalaro).
I spent fourteen years as a full time faculty member (Criminalistics Program Coordinator with faculty rank of Principal Lecturer) in the department of criminal justice at the University of North Texas, retiring in 2012. During my tenure as a professor I taught criminal investigation for ten years using a text book I was a contributor to “Criminal Investigation” (McGraw-Hill 8th edition).

I have provided specialized forensic training (primarily in shooting incident reconstruction) over the past 30 years to the FBI, DEA, NYPD, Texas Rangers, New York State Police, New Jersey State Police, San Diego County Sheriff’s Office, Oregon State Police, Louisiana State Police and numerous other state and local agencies as well as the Canadian Office of Special Investigations, Turkish National Police, Toronto Center of forensic Science and the Guatemala Attorney General’s Office.

I have had long-standing adjunct roles with the St. Louis County Municipal Police Academy, the Texas DPS Academy and the NW University Center for Public Safety. Topics that I routinely cover in my shooting reconstruction classes include:
I am the author of “Practical Analysis & Reconstruction of Shooting Incidents” (CRC Press 2nd edition 2016) and “Fingerprints & Firearms” (Facts on File, 2008) and more than 40 articles on crime scene reconstruction and shooting reconstruction published in various forensic journals. Additionally I have contributed to several texts including “The Forensic Laboratory Handbook – Procedures and Practice” (Humana Press 2nd edition 2012) and “Criminal Investigation” (McGraw-Hill 8th edition). I am a retired Fellow of the American Academy of Forensic Science, Emeritus Member of the American Society of Crime Laboratory Directors, Emeritus Member of The Southwestern Association of Forensic Scientists, Distinguished Member of the Association of Firearm & Tool Mark Examiners and member of the International Association of Bloodstain Pattern Analysts.