New SC law requres mandatory DNA sampling at arrest

I just heard about this on the evening news tonight. Basically the state legislature overrode the Governor’s veto passing a law that requires the police to collect DNA samples from people arrested on a felony charge. It seems like the focus is on getting the information to the lab quickly to run the results for possible matches on other crimes. The one big problem I see with this is that if you’re wrongly arrested, your DNA is in the system. While the government is supposed to purge the DNA records of the falsely accused there’s no guarantee that they actually will. There’s also another problem in that the larger these databases get, the higher the chance of a match between 2 unrelated profiles. I mentioned this before in another post linked to an article in the LA Times.