9 research outputs found

    Chicago: Where Polygraph Becomes a Science

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    In the 1920’s, earlier work on polygraph instrumentation and procedure in Europe and the United States came together in Chicago where John Reid and Fred Inbau at the Scientifi c Crime Laboratory applied extensive field observations in real life criminal cases to create the Comparison Question and semi-objective scoring technique, the factors that allowed polygraph to achieve scientific status. While Chicago was not the fi rst place the instrumental detection of deception was attempted, it was the place where the contemporary, comparison question technique was fi rst developed and polygraph became a science. Th is fortuitous development was the result of the unlikely assemblage of a remarkable group of polygraph pioneers and a ready supply of criminal suspects. It is impossible to pinpoint when people fi rst began noticing the relationship between lying and observable changes in the body. Th e early Greeks founded the science of physiognomy in which they correlated facial expressions and physical gestures to impute various personality characteristics. Th e ancient Asians noted the connection between lying and saliva concluding that liars have a diffi cult time chewing and swallowing rice when being deceptive. Clearly, behavioral detection of deception pre-dates instrumental detection of deception which, it is equally clear, is European in origin. By 1858 Etienne-Jules Marey, the grandfather of cinematography recently feted in Martin Scorsese’s fi lm Hugo, and Claude Bernard, a French physiologist, described how emotions trigger involuntary physiological changes and created a “cardiograph” that recorded blood pressure and pulse changes to stimuli such as nausea and stress (Bunn, 2012). Cesare Lombroso, oft en credited as the founder of criminology, published the fi rst of fi ve editions of L’uomo delinquente in 1876 in which he postulated that criminals were degenerates or throwbacks to earlier forms of human development. Lombroso later modifi ed his theory of “born criminals” by creating three heretical classes of criminals: habitual, insane and emotional or passionate (Lombroso, 1876). By 1898, Hans Gross, the Austrian jurist credited with starting the fi eld of criminalistics, rejected the notion of “born criminals” and postulated that each crime was a scientifi c problem that should be resolved by the best of scientifi c and technical investigative aides (Gross, 2014). In 1906, Carl Jung used a galvanometer and glove blood pressure apparatus with a word association test and concluded that the responses of suspected criminals and mental perverts were the same ( Jung, 1907). In order to appreciate the important polygraph contributions that occurred in Chicago, one needs to fi rst consider what was happening at Harvard University and in Berkeley, California at the beginning of the 2oth Century

    Critical Changes Over the 100 Year Evolution of Polygraph Practices

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    "I believe the most important evolutionary changes to polygraph procedures and practices over the last 100 years were all the result of the creation of the first modern day crime laboratory in 1930 at the Northwestern School of Law, shortly thereaft er to become the Chicago Police Scientifi c Crime Laboratory and the many years of polygraph fi eld research and practice by John Reid and Fred Inbau."(...

    Deceptive Language by Innocent and Guilty Criminal Suspects: The Influence of Dominance, Question, and Guilt on Interview Responses

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    Matthew L. Jensen is an assistant professor in the Price College of Business and a researcher in the Center for Applied Social Research at the University of Oklahoma. His primary research interests are deception and credibility in online and face-to-face interaction. Recent publications have dealt with computer-aided deception detection and establishing credibility online.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

    PAPER GENERAL The Accuracy of Auditors' and Layered Voice Analysis (LVA) Operators' Judgments of Truth and Deception During Police Questioning*

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    ABSTRACT: The purpose of this study was to determine if auditors could identify truthful and deceptive persons in a sample (n = 74) of audio recordings used to assess the effectiveness of layered voice analysis (LVA). The LVA employs an automated algorithm to detect deception, but it was not effective here. There were 31 truthful and 43 deceptive persons in the sample and two LVA operators averaged 48% correct decisions on truth-tellers and 25% on deceivers. Subsequent to the LVA analysis the recordings were audited by three interviewers, each independently rendering a decision of truthful or deceptive and indicating their confidence. Auditors' judgments averaged 68% correct decisions on truth-tellers and 71% on deceivers. Auditors' detection rates, generally, exceeded chance and there was significantly (p < 0.05) greater confidence on correct than incorrect judgments of deceivers but not on truth-tellers. These results suggest that the success reported for LVA analysis may be due to operator's judgment
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