Daily Archives: August 20, 2011

Forensic science could deliver blow to crime, but ethical questions linger

Engineering News South Africa
We all leave something behind wherever we go, much of it unintentionally. This is more a biological notion than a romantic one. Watch enough American cop shows and you will know how a little bit of hair, skin, saliva, sweat or blood left at a crime scene all contain deoxyribonucleic acid – or DNA, as it is better known.