Verifying the Truth - Detecting Deception
In The Private Sector

With over 34 years of experience in Law Enforcement and Truth Detection, Gregg McMartin, a certified Forensic Polygraph Examiner, has advanced training and is current in the latest techniques and technologies of polygraphy and the detection of deception in written and verbal communication.

Gregg is a member of the Canadian Association of Police Polygraphists (CAPP) and has served terms as Vice President of CAPP and was chairman of the Professional Standards and Ethics Committee for CAPP. 

National Polygraph Service offers its clients a professional and confidential service.

Located just outside the city of Calgary, Alberta, Canada, National Polygraph Service administers private polygraph examinations throughout Canada.

National Polygraph Service uses state of the art computerized polygraph equipment in the collecting of physiological responses from the Test Subject.


"The ultimate goal of all research is not objectivity, but truth"
- Helene Deutsch

Professionalism | Integrity | Experience | Confidentiality

© 2004 National Polygraph Service
Airdrie, Alberta T4B 2B4