Disputed Confessions and Miscarriages of Justice in Britain: Expert Psychological and Psychiatric Evidence in the Court of Appeal GISLI GUDJONSSON* I. INTRODUCTION 2006 CanLIIDocs 133 nly in the last two decades have scientists taken serious interest in false Oconfessions made during custodial interrogations.' Many high-profile cases of false confessions have been reported,' but these are "only the tip of a much larger iceberg". 3 As the frequency of false confessions is unknown and there is no adequate method of calculating precise incident rates, there continues to be perennial debate over the numbers.' Sigurdsson and his colleagues found a high prevalence rate history of reported false confessions (12 percent) among Ice- Professor Gisli H. Gudjonsson, Department of Psychology (PO 78), Institute of Psychiatry, De Crespigny Park, Denmark Hill, London, SE5 8AF, England. Email: <
[email protected]>. This article is based on a paper presented at the International Conference on Avoiding Wrongful Conviction, Fairmont Hotel, Winnipeg, Manitoba, 20- 22 October 2005. Mark Powlson, "Guilty innocents: the road to false confessions", Editorial (1994) 344 The Lancet 1447-50. 2 Gisli H. Gudjonsson, The Psychology of Interrogations and Confessions: A Handbook (Chich- ester: John Wiley & Sons, 2003) [Gudjonsson, Interrogations and Confessions]; Saul M. Kas- sin & Gisli H. Gudjonsson, "The Psychology of Confessions: A Review of the Literature and Issues" (2004) 5 Psychological Science in the Public Interest 35 [Kassin & Gudjons- son]. 3 Steven A. Drizin & Richard A. Leo, "The Problem of False Confessions in the Post-DNA World" (2004) 82 N.C.L. Rev. 891. 4 Kassin & Gudjonsson, supra note 2 at 48.