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Scheffer, 523 U.S. 303 (1998), was the first case in which the Supreme Court issued a ruling with regard to the highly controversial matter of polygraph, or "lie-detector," testing. At issue was whether the per se exclusion of polygraph evidence offered by the accused in a military court violates the Sixth Amendment right to present a defense.
American inventor Leonarde Keeler testing his improved polygraph on Arthur Koehler, a former witness for the prosecution at the 1935 trial of Richard Hauptmann. A polygraph, often incorrectly referred to as a lie detector test, [1] [2] [3] is a pseudoscientific [4] [5] [6] device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration ...
Lie detection is an assessment of a verbal statement with the goal to reveal a possible intentional deceit. Lie detection may refer to a cognitive process of detecting deception by evaluating message content as well as non-verbal cues. [ 1 ]
Workplaces in the United States must display this poster explaining the Employment Polygraph Protection Act to employees. The Employee Polygraph Protection Act of 1988 (EPPA) is a United States federal law that generally prevents employers from using polygraph (lie detector) tests, either for pre-employment screening or during the course of employment, with certain exemptions.
These responses are utilized as part of the polygraph or lie detector test. EDA in regular subjects differs according to feelings of being treated fairly or unfairly, but psychopaths have been shown to manifest no such differences. [22] This indicates that the EDA record of a polygraph may be deceptive in a criminal investigation.
Failing, or even refusing, a polygraph test is grounds for disqualification, as is the use of a cell phone or any other potential assistance to seek out more target-rich waters.
The court's decision – involving a citizen who accused the Citrus County Sheriff's Office of misconduct – is the latest to provide new mechanisms for civilian oversight of law enforcement ...
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