Expert Testimony in the Dock

Abstract

This article focuses predominantly on the recent miscarriages of justice in the cases of Angela Cannings and Sally Clark. The article identifies possible causes of error in trials involving expert testimony. It is suggested that admission of scientific evidence may inevitably elicit such miscarriages of justice. In order to reduce their frequency, however, experts need training in both scientific and forensic methodology. The science community must also ensure vigilance against scientific dogma. The cases show that responsibility does not lie solely at the feet of expert witnesses. Advocates need training in how to deal with expert testimony. Finally, the use of the jury in complex scientific trials is considered and approved.