NASHVILLE – Today, the Tennessee Bureau of Investigation announced its Polygraph Unit has been awarded accreditation through a national board, Polygraph Law Enforcement Accreditation (PLEA). The process, which began in October 2014, required an extensive review of TBI’s policies and practices guiding its Polygraph Unit, which currently comprises four polygraph examiners and a supervisor, all … Continue reading TBI Achieves Prestigious Polygraph Accreditation
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