ABSTRACT
When DNA evidence was first used in criminal practice it was considered impregnable and almost certain. Even now there is a belief among some criminal lawyers and barristers that DNA evidence is an unassailable proof of guilt. Throughout this book I have tried to show that this point of view is wrong. Despite being the most accurate method of human identification, DNA evidence is not infallible, although this does not mean that it is inherently flawed. As any other form of scientific evidence, the DNA testing procedure has a potential for error and DNA evidence also suffers from the same problems as other, more conventional, evidence, such as shoe print or fingerprint evidence.
