LS272 Chapter Notes - Chapter 4: Electrodermal Activity, Malingering, Autonomic Nervous System
28 Jan 2020
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The polygraph technique: at one time, chinese forced suspects to chew on dry rice powder and then spit it out. In canada a polygraph course is offered to police officers. Applications of the polygraph test: ask suspects to take the polygraph test to solve a crime. If suspect fails the polygraph, person may be pressured to confess, giving the police incriminating evidence. But this was eventually restricted to just job-related wrongdoings. Some governmental agencies in usa and cnd still use it as a screening tool. Types of polygraph tests: sometimes called lie detector but doesn"t really detect lies, since the physiological states associated with lying share a lot in common with other states. Instead, polygraph tests rely on measuring physiological responses to different types of questions. If details of the crime appear in the media, crime-related details can"t be used to construct a cit. Indicators of guilt: such as physical evidence, eyewitness testimony or.
