In 2023, Byers Investigative Services purchased Lancaster Polygraph from Lancaster Information Services.  Gary Lancaster started the business over thirty years ago.  Lancaster Polygraph serves more Law Enforcement Agencies in Metro Atlanta with all of their pre-employment and specific issue polygraph testing than any other firm.  All of our examiners are retired police polygraphers. We have the absolute best reputation and pricing in the polygraph business anywhere in Georgia. Our examiners are members of the American Polygraph Association as well as the Georgia Polygraph Association.

Call for Specific Issue test pricing.

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