Gisli Gudjonsson is a Professor Emeritus of Forensic Psychology at the Institute of Psychiatry, Psychology & Neuroscience, King’s College London. He pioneered the empirical measurement of interrogative suggestibility and has published extensively in the areas of psychological vulnerabilities, false confessions, and police interviewing.
He has provided expert evaluation in several high-profile appeal cases in the UK, including the Guildford Four, Birmingham Six, the Tottenhham Three, the Cardiff Three, and thr case of Colin Stagg [including the police undercover operation]. He has provided expert testimony in several high profile cases in the USA (e.g., Joe Giarratano; Henry Lee Lucas; John Wille – all on death row and death sentences subsequently commuted/vacated, and Melissa Lucio whose execution was “stayed” indefinitely on April 2022, the case is currently awaiting court outcome regarding a re-trial); Canada (e.g., Andrew Rose [undercover operation]; Norway (e.g., Birgitte Tengs case); Iceland (The Gudmundur and Geirfinnur cases – known in the United Kingdom as the ‘Reykjavik Confessions’); Israel (a terrorist case); The Hague, Netherlands (An International War Crimes Tribunal).
He currently works as a Special officer with the National Crime Agency within the Behavioural and Social Science (BaSS) Coordination Hub.