DILEMMAS OF SCIENCE AND THE CRIMINAL LAW: A SOUTH AFRICAN PERSPECTIVE

In light of the 85.9% conviction rate reported by the National Prosecuting Authority for the year 2007/2008, one would expect crime in South Africa to be comparatively under control. However, with only 11% of all reported cases of murder resulting in convictions in this country, it becomes clear that crime is still a very real threat to the Constitutional freedom of its citizens. This article explores the problems encountered in the harvesting, processing and presentation of expert scientific evidence in our criminal courts. The court ruling in S v Van der Vyver 2008 JOL 21332 C is analysed and presents an interesting example of the erroneous use of science in the criminal justice system. A comparative study is undertaken to illustrate further the extent of the problems inherent in the use of science within the criminal justice system and probe possible solutions. The use of scientific evidence in the jurisdictions of England/Wales and the United States of America are used as a focus for the comparative studies.