But are accident black spots simply the result of random variation or are there some areas where speeding is a particular danger?

BBC: Speed Cameras

What we were interested in doing back in those early days of human molecular genetics was just trying to find out some basic information about inherited variation in our DNA. And it was purely by accident in those studies that we generated, totally out of the blue, what proved to be the very first DNA fingerprint.

NPR: Pioneering DNA Forensics