Craig Harper has been conducting polygraph examinations since 1999 and is a retired Major
Crimes Detective from the Orlando Police Department. He is a graduate of the Texas Department of
Public Safety Law Enforcement Polygraph School. He is state certified through the Florida Polygraph
Association and maintains national certification through the American Association of Police
Polygraphists. He established D. Craig Harper and Associates, LLC, in 2014. The firm has addressed
polygraph examinations for a variety of governmental entities, law enforcement agencies, mental health
professionals, attorneys, public safety organizations, private enterprises, individual parties, and
international clientele. The firm has bilingual capabilities. We also offer investigative consultation
services and expert witness court testimony.
Our examiners are experienced and diversified having extensive service in law enforcement and various
branches of the United States Armed Forces. We at D. Craig Harper and Associates are committed to
absolute integrity and customer service. All of our services remain CONFIDENTIAL.