DNA - the famous double helix.
John Key has proposed people being charged with a crime that could mean a jail sentence have their DNA taken. It they were found NOT GUILTY the DNA would be destroyed. As usual the the usual suspects are bleating and missing out the vital pount that only convicted criminals DNA would be retained.
The usual suspects are probably scared that the Police will use the DNA taken to look at other crimes and some of these would be solved (ie criminals will go to jail - how terrible).
The most important aspect is that we must make sure that the DNA matching is done correctly.
The last time we were in the UK a woman got stopped and was charged with being over the limit. Under their law they were able to take her DNA which showed a family link to a series of 20 year old rapes. They then charged her brother - who got something like 40 years jail.
As is well known, they only linked him to about 5 rapes, but upon searching his house they found he had taken a pair of shoes from each victim. The total meant he had raped over 20 women.
