ABSTRACT

The strength of DNA evidence is reflected by the value of the probability of a random match between DNA profiles from the crime sample and the accused. Any probabilistic approach introduces uncertainly into the interpretation of scientific evidence which, if not properly understood, can give rise to a misunderstanding of the evidence and inaccurate conclusions as to what the evidence really means. To be able to deal with errors of evidence misinterpretation, it is important to know their origin and how they can affect the proceedings.