A black prosecutor dislikes a DNA test that proved a perp was black and not white, and wishes the technology would just go away. Cops had been looking for a white guy in a white pickup truck for years until a molecular biologist told them there was no way the serial killer was white. They eventually caught the guy, but the prosecutor would rather have him on the street than use technology that helped him get a killer off the street.
As Bryan at HotAir rightly says:
Political correctness has turned too many good minds to goo.