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lie detector test

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lie detector test n. a popular name for a polygraph which tests the physiological reaction of a person to questions asked by a testing expert. A potential or actual criminal defendant or possible witness cannot be forced or ordered to take a lie detector test. Some habitual liars pass lie detector tests, and innocent, honest people fail them due to nervousness and other factors. However, law enforcement authorities usually believe the results, which occasionally exonerate (clear) a suspect. Since the results are sometimes unreliable, they are not admissible in a trial and may not be referred to. (See: polygraph)



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Offering to take a lie detector test to prove he had nothing to do with Veronica Guerin's murder is completely self-serving.
A NEW lie detector test has found that it takes almost a third longer to tell a fib than the truth.
Christopher Bence, 376th Air Expeditionary Wing commander at Manas Air Base, said the serviceman is in the United States and he took a lie detector test recently.
 
 
 
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