lie detector test


Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.

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)

References in periodicals archive ?
However, a source close to the Wallasey MP said they stood by the claims and dismissed the suggestion of a lie detector test, saying "polygraph tests are only extensively used in Britain on the Jeremy Kyle Show".
Mullins has carried out lie detector tests in English prisons but this has been his only work in a J Scots jail.
Chandra told the court: " I voluntarily give my consent for lie detector test to establish my innocence.
It's a lie detector test that I offered to take back in the 1990s in the early part of my last prison sentence for the torture of Billy Collier.
The questions of the lie detector test then begin to get extremely specific, like when the examiner asks Tara Reid if she (http://www.ibtimes.com/tara-reid-has-emotional-break-down-season-5-marriage-boot-camp-reality-stars-wants-2393751) cheated on her boyfriend Dean May with "that D.J.
Throughout the show, she refused to take the famous lie detector test despite Jeremy Kyle insisting it was the only way she could prove her innocence.
However, the two Zee editors, Samir Ahluwalia and Sudhir Chaudhary, who are behind bars in connection with the case, declined to undergo the lie detector test but agreed to give their voice samples to the investigators.
CRICKETERS may be forced to take lie detector tests under the latest plan to rid the game of corruption.
SHAMED Congressman Gary Condit has passed a lie detector test, his lawyer claimed last night.
Earlier in October, a Delhi Court had appointed advocate BS Joon as Court Commissioner to observe the lie detector test of eye-witness Abhishek Verma in connection with the aforementioned case.