UNDERSTANDING  POLYGRAPH

​The polygraph, when used appropriately and administered by a competent examiner, can be used to help determine truth or deception. It is vital to understand that the court system determines INNOCENCE or GUILT, the polygraph assists in determining TRUTH or DECEPTION.

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Polygraph - A BRIEF OVERVIEW

​A polygraph, commonly referred to as a lie detector, is a device  that measures several physiological indicators.  These physiological changes are an involuntary reaction from the sympathetic nervous system.  A polygraph examiner utilizes a polygraph instrument that records these physiological changes.