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Ask A Polygraph Expert: How Do You Spot A Liar?
7:07
YouTubeCNA Insider
Ask A Polygraph Expert: How Do You Spot A Liar?
Meet polygraph examiner Malaravan Ponniah, 60, who has questioned suspects in criminal cases ranging from outrage of modesty to murder, as well as civil disputes such as cheating spouses. Ron spent 32 years in the military where he was trained in the art of forensic polygraph examination by US instructors. After retiring from the military in ...
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