ABSTRACT
Although DNA is seen as the ultimate analytical technique, the tools with which it is carried out and the nature of the results will change with time as techniques become more sophisticated. Indeed, this has already happened in the short space of time in which it has been used, and it has become a forensic tool of enormous power. DNA analysis has virtually replaced all other methods of trace analysis involving biological fluids. This is primarily due to it being possible to carry out DNA analysis on samples of a very small size and on virtually any type of biological material. Although blood groups can sometimes be produced from semen and other biological material, it cannot be carried out on the range of material that DNA will produce a result from.
