Trial by polygraph: Reconsidering the use of the guilty knowledge technique in court

Gershon Ben-Shakhar, Maya Bar-Hillel, Mordechai Kremnitzer

Research output: Contribution to journalReview articlepeer-review

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.

Original languageEnglish
Pages (from-to)527-541
Number of pages15
JournalLaw and Human Behavior
Volume26
Issue number5
DOIs
StatePublished - Oct 2002
Externally publishedYes

Keywords

  • Daubert criteria
  • Guilty Knowledge Test (GKT)
  • Polygraph

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