Doug Williams, a former Oklahoma City police polygrapher, says he can teach people how to pass lie detector tests. Federal prosecutors and agents recently targeted him and another instructor in undercover stings aimed at cracking down on the teaching of polygraph beating methods.
Doug Williams, a former Oklahoma City police polygrapher, says he can teach people how to pass lie detector tests. Federal prosecutors and agents recently targeted him and another instructor in undercover stings aimed at cracking down on the teaching of polygraph beating methods. MCT
Doug Williams, a former Oklahoma City police polygrapher, says he can teach people how to pass lie detector tests. Federal prosecutors and agents recently targeted him and another instructor in undercover stings aimed at cracking down on the teaching of polygraph beating methods. MCT

Seeing threats, feds target instructors of polygraph-beating methods

August 16, 2013 04:08 PM

UPDATED January 02, 2014 02:14 PM

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