DNA test for all men

A frightening proposal for a huge invasion of privacy in the UK. From the Daily and Sunday Express:

An MP led the call for all men living in the same city as the landscape architect to give saliva samples to the police as their investigation makes slow progress. Kerry McCarthy, Labour MP for Bristol East, said the need to catch Joanna’s killer overrides the questions of intrusion and invasion of privacy in a mass screening.

A tiny forensic trace of Joanna’s suspected killer is believed to have been recovered by crime scene investigators when her body was found in a remote lane on Christmas Day.

This potentially precious clue has left senior officers with the tough decision to launch an expensive and manpower-intensive operation to eliminate all the men living in not only Joanne’s neighbourhood in Clifton, but across the city using the latest DNA techniques.