In an unusual move, the federal government has brought criminal charges against a 69 year old Oklahoma man who allegedly taught people how to lie during federally administered lie detector tests. Douglas Williams, who operates a website called Polygraph.com, was charged with mail fraud and obstruction of justice. He is the second person to be charged with helping people defeat polygraph exams. An Indiana man was sentenced to eight months in prison in 2013 for the same offense. Williams said as a former polygrapher for the Oklahoma City Police Department, he came to distrust polygraphs. “And the truth is, the polygraph is no more accurate than the toss of a coin in determining whether a person is telling the truth or lying,” Williams told the Journal.

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