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NCJ Number: 150444 Find in a Library
Title: Method for Detecting Deception
Journal: Polygraph  Volume:23  Issue:2  Dated:(1994)  Pages:134-144
Author(s): L Keeler
Date Published: 1994
Page Count: 11
Type: Historical Overview
Format: Article
Language: English
Country: United States of America
Annotation: This article, written by the inventor of the modern polygraph, outlines several experiments which illustrate its use in the field of law enforcement investigation.
Abstract: The device developed by the author consists of three units, one recording continuously and quantitatively the subject's blood pressure and pulse, one giving a duplicate blood-pressure pulse curve taken from some other part of the subject's body, and the third recording respiration. The success of this device in detecting deception and guilt on the part of criminal suspects was attributed in large measure to the psychological effect such a test has in bringing about confessions. An estimated 75 percent of guilty suspects who had undergone the test as of the original writing of this article had confessed to their crimes. To ascertain the physiological responses resulting from deception, the author performed an experiment which eliminated the fear and anger features normally accompanying criminal deception. Other experiments focused on the determination of guilty or true deception.
Main Term(s): Science and Technology
Index Term(s): Courts; Criminology; History of policing; Police equipment; Polygraph techniques; Polygraphs
Note: Reprinted from the American Journal of Police Science, V 1, N 1, P 38-52; also presented as "Deception Tests and the Lie Detector" at the International Association for Identification in 1930 and printed in their Proceedings, V 16, P 186-193.
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http://www.ncjrs.gov/App/publications/abstract.aspx?ID=150444

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