Retired U.S. Army polygraph examiner in Maryland providing computerized polygraph testing for federal, law enforcement, legal, and domestic issues. Full Member ...
A polygraph examination, or lie detector test, is often used in criminal cases when an offense has occurred. Although often used in criminal investigations, a ...
National Polygraph Services in Ottawa, Ontario by Gerald K. Coulter providing polygraph services, polygraph training and Lafayette equipment sales to a wide ...
Leading the field in Polygraph testing. NADAC Group is the UK's largest Lie Detector Test Service Company, employing the country's top polygraph examiners.
