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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, and skin conductivity while a person is asked and answers a series of questions. [7]
The cognitive interview (CI) is a method of interviewing eyewitnesses and victims about what they remember from a crime scene.Using four retrievals, the primary focus of the cognitive interview is to make witnesses and victims of a situation aware of all the events that transpired.
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.
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In the Reid technique, interrogation is an accusatory process, in which the investigator tells the suspect that the results of the investigation clearly indicate that they did commit the crime in question. [9] The interrogation is in the form of a monologue presented by the investigator rather than a question and answer format. The demeanor of ...
The American Polygraph Association (APA) is a professional association of polygraph examiners. It was established in 1966. It has about 2,800 members. The organization offers its members publications and conferences related to polygraphy, as well as employment services and public referrals for its members.
Contrary to a traditional polygraph (also known as a lie detector) that relies on changes to sweat glands as nervous responses to determine the subject's honesty, brain fingerprinting is entirely concealed in the brain's responses to stimuli. [7] This makes the technique harder to resist or beat, making it a more reliable method of detecting lies.