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Police and polygraphs: Metro agencies use lie detectors as an investigative tool

Published 10/06/2013, INFORUM

FARGO - Rollie Rust admits he wasn’t a big believer in lie detectors before he went to polygraph testing school. But after more than three decades of quizzing suspects and other subjects for truthfulness, the retired Fargo police sergeant has concluded that, if used as intended, the polygraph test is “just really kind of a nice tool.”

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