Roy L. Clugston, Jr.
and Handsome Hank

Clugston Polygraph and Investigative Services is owned and operated by Roy L. Clugston, Jr.   Roy is an honorably discharged veteran of the United States Army with over 35 years of experience in law enforcement, polygraph examinations, investigations, security consulting, and loss prevention. 

As a Tulsa County Deputy Sheriff, he served as a training officer, robbery and homicide investigator and supervisor in the county jail.  Roy was a deputy sheriff and jail director for the Rogers County Sheriff's Department.  He has worked as a federal court security officer for the U.S. Marshal's office in Tulsa, Oklahoma.  Roy is a 1972 graduate of the National FBI Academy.

Roy graduated from the Backster School of Lie Detection and completed an American Polygraph Association approved internship in 1978.  He was the first Polygraph Examiner with the Tulsa County Sheriff's Department.  Roy also performed polygraph examinations for the Tulsa Police Department and Tulsa County District Attorney's office.  Roy has been a Certified Polygraph Examiner since 1978; his Oklahoma license is #16.  Roy is a member of the American Polygraph Association and the Oklahoma Polygraph Association.   He has owned and operated the Clugston Polygraph Agency since 1980.

Roy has conducted internal investigations and security consulting for defense contractors, large hotels, major retailers and the Tulsa County Housing Authority.   Roy has screened applicants, performed polygraph examinations, conducted audits and internal investigations for several major corporations.  He is currently licensed as a Private Investigator by the state of Oklahoma and former President of the Tulsa chapter of the Oklahoma Private Investigator's Association.

Clugston Polygraph and Investigative Services




Grove Office Location:
221 E 3rd St.
Grove, Oklahoma 74344

Mailing Address:
P.O. Box 452409
Grove, Oklahoma 74345-2409

Tulsa Office Location:
320 S Boston Ave.
Ste. 1130
Tulsa, Oklahoma 74103

Phone: 918-622-7008


e-mail: roy@clugston-investigations.com

Serving Northeast Oklahoma, as well as Tulsa and Oklahoma City





We comply fully with the Gramm-Leach-Bliley Act of 1999





Copyright 2008 - 2015 Clugston Polygraph & Investigative Services

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