"This field study is the fifth published research study [Gordon 2000] on the Integrated Zone Comparison Technique (IZCT). Its theory and philosophy were first published in 1996, in the textbook Forensic Psychophysiology; Use of the Polygraph [Matte 1996]. Th e IZCT has been taught at the Academy for Scientific Investigative Training since 1987 [Gordon 2000]. It is currently being used in the fields of law enforcement, intelligence, and private security in numerous countries around the world. It is a modification of the Backster Zone Comparison Technique [Backster 1969] format, in a structure that closely resembles the zone technique validated at the University of Utah [Matte 1996]. It is a fl exible technique format allowing it to be used for single-issue, multi-faceted and multi issue investigations. In addition, the IZCT uses a global approach to credibility assessment by using the Forensic Assessment Interview Technique [Gordon 2004] as the pre-test interview of the polygraph examination."(...)