John Grogan

Polygraph Examiner, Senior at Certified Polygraph
On the record
Bio

Polygraph examiner since 1988. More than 11000 persons tested. More than 1000 TV/media appearances. More than 600 million social media views of my work. News source on topics such as alleged polygraph test involving Chief Justice Brett Kavanaugh. Polygraph instructor. Have tested coast to coast, have strong nationwide affiliates. TV's 'Lie Detector Guy'. TV's 'Polygraph Guy'. Infidelity polygraph. Theft polygraph. Immigration polygraph. Abuse polygraph. Law enforcement preemployment polygraph.

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