Gísli Hannes Guðjónsson, CBE (born 26 October 1947) is an Icelandic-British academic, educator, forensic psychologist and former detective.
[2] Gísli was born on 26 October 1947 to Guðjón Aðalsteinn Guðmundsson and Þóra Hannesdóttir.
[4] His twin brother joined the Reykjavík Criminal Investigation Police while he chose to study economics at Brunel University London (BSc, 1975), but changed to psychology whilst in his second year.
[9] He was appointed Commander of the Order of the British Empire (CBE) in the 2011 Birthday Honours for services to clinical psychology.
An author of several books, Gudjonsson was a coauthor on the American Psychology-Law Society (AP-LS) White Paper by Saul Kassin et al. (2010) titled "Police-induced confessions: Risk factors and recommendations.