The BBC is reporting the conviction of a man for the murder of a prostitute 15 years ago. The interesting twist is that his DNA was not on record – ‘But it partly matched that of a youth’s who was known to the police – but who had not been born at the time of the murder. The teenager, it turned out, was a close relative of the murderor.’ There has been concern in the past at the idea of keeping DNA of those interviewed but not charged with crimes. I haven’t previously heard of the privacy implications of being related to a criminal/suspect. If you’ve done nothing wrong, you’ve nothing to fear?