Over the past 20 years DNA evidence has become the foundation upon which forensic investigation is built. The identification of traces of blood, saliva and other bodily fluids places a suspect directly at the site of a crime, and can be the difference between a guilty or not guilty verdict in court.
But as new identification technologies emerge at an ever quickening pace, new questions are being raised as to not only the efficacy of these technologies, but also their implications on privacy, civil liberties and validity.
