Trial by Polygraph: Reconsidering the Use of the Guilty Knowledge Technique in Court

Law and Human Behavior, Vol. 26, No. 5, October 2002

Hebrew University of Jerusalem Legal Research Paper

15 Pages Posted: 3 Jun 2015

See all articles by Gershon Ben-Shakhar

Gershon Ben-Shakhar

Hebrew University of Jerusalem - Department of Psychology

Maya Bar-Hillel

Hebrew University of Jerusalem

Mordechai Kremnitzer

Hebrew University of Jerusalem - Faculty of Law

Date Written: 2002

Abstract

Polygraph test results are by and large ruled inadmissible evidence in criminal courts in the US, Canada, and Israel. This is well-conceived with regard to the dominant technique of polygraph interrogation, known as the Control Question Technique (CQT), because it indeed does not meet the required standards for admissible scientific evidence. However, a lesser known and rarely practiced technique, known as the Guilty Knowledge Test (GKT), is capable, if carefully administered, of meeting the recently set Daubert criteria. This paper describes the technique, and argues for considering its admissibility as evidence in criminal courts.

Keywords: polygraph, evidence, criminal, US, Canda, Israel, interrogation, Control Question Technique, Guilty Knowledge Test

Suggested Citation

Ben-Shakhar, Gershon and Bar-Hillel, Maya and Kremnitzer, Mordechai, Trial by Polygraph: Reconsidering the Use of the Guilty Knowledge Technique in Court (2002). Law and Human Behavior, Vol. 26, No. 5, October 2002, Hebrew University of Jerusalem Legal Research Paper, Available at SSRN: https://ssrn.com/abstract=2613453

Gershon Ben-Shakhar

Hebrew University of Jerusalem - Department of Psychology ( email )

Mount Scopus, 91905
Israel

Maya Bar-Hillel

Hebrew University of Jerusalem ( email )

Safra Campus
Jerusalem, Jerusalem 91904
Israel

Mordechai Kremnitzer (Contact Author)

Hebrew University of Jerusalem - Faculty of Law ( email )

Mount Scopus
Mount Scopus, IL 91905
Israel

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