Bill Parker

Consultant / Retired

Mr. Parker is a principal in Behavioral Measures & Forensic Services Southwest, Inc. He has been a licensed polygraph examiner in the State of Texas since 1980. Mr. Parker conducts polygraph examinations for governmental agencies, law enforcement agencies, district attorneys, private and corporate attorneys as well as commercial clients. In addition, he has conducted a wide range of criminal and non-criminal investigations for the private, corporate and government sectors, both foreign and domestic. These services including detecting business fraud and theft, conflicts of interest or other business crimes, interview and interrogations, locating individuals, due diligence, access to a multitude of public records, financial audits, asset location, surveillance and surveillance photography.

Mr. Parker began his police career in 1964 as a patrol officer after his honorable discharge from the United States Army in 1964. His military specialty was Light Weapons Infantry, and he received the Marksman Badge (rifle, pistol) and Parachutist Badge. Beginning in 1967, he worked as an investigator with the Crimes Against Property Division; Auto Theft Division; and Vice Control Division of the Dallas Police Department. In 1972, Mr. Parker advanced to Sergeant of the Homicide Section from which he retired in 1984.

Mr. Parker received his Bachelor of Science degree in 1976 from Sam Houston State University. He attended Detection of Deception at University of Utah in 1982. He became a licensed private investigator in 1988.

During his distinguished career, Mr. Parker has investigated multiple high profile cases. One of those resolved cases, the Ianni’s Restaurant massacre in Dallas, is highlighted in Gary M. Lavergne’s book “Worse than Death.” Mr. Parker has also been recognized for his work in other very high profile investigations. He has provided testimony as an expert witness in the homicide trial and conviction of Darlie Routier and provided rebuttal expert witness testimony in the kidnapping trial and conviction of Ricky Lee Franks in the death of young Opal Jennings. His knowledge of the internal workings of police departments and other service-related government agencies is unequaled and he brings that knowledge and developed investigative skill to each department he works for two resolve internal conflicts or problems.

Former famed Dallas District Attorney Henry Wade wrote of Bill Parker: “One, if not the best homicide investigators I ever had the pleasure of working with.”