Gisli Gudjonsson

Gisli Gudjonsson is a British psychologist known for his research on how mental health and personality influence lie detection, confession accuracy, and forensic assessments. His work helps law enforcement and mental health professionals better understand the reliability of confessions and the psychological factors affecting testimony, especially in criminal investigations. Gudjonsson developed the Gudjonsson Suggestibility Scale and the Gudjonsson Confession Innocence Scale, tools used to assess suggestibility and the credibility of confessions. His contributions have improved the understanding of how psychological traits impact legal processes, supporting fairer and more accurate justice systems.