On the subject of DNA there was a case here in Ireland where a young woman got off a bus one evening and was making her way to her uni accommodation.She was found viciously beaten at the side of the road.The Gaurds here couldn't figure out a motive so they took the unusual step of taking the DNA of every man and woman on the bus,they never found the culprit but there was a man on the bus who had killed a woman about 10 years previous who had to confess to murder because they got a DNA match in that!What an odd stroke of luck...the funny thing about it was they never found out what actually happened to the girl or if she was attacked,hit by a car etc...
