This is a private polygraph firm operating in the public sector, in support of security & safety agencies, who are conducting pre-employment, Internal affairs and criminal investigations. The Center is appropriately licensed, certified and insured. We have agreements with several Sheriff's Offices, municipalities and the DFW Airport DPS, hence our very reasonable rates. Our professional examiners, who are former federal law enforcement officers or investigators, have substantial field experience in the area of personnel investigations.