MB wrote:

Haven't you noticerd, everyone is now guilty unless proved innocent
and even then still considered probably a criminal. Some of the
interviews with police and Home Office people about the keeping of
DNA records of innocent people were illuminating. They just did not
understand the concept, one even admitted that he would have to look
up in the dictionary. One aspect was that if you are innocent of most
crimes they want to keep your DNA for six years but if you are
innocent of a more serious crime then they want to keep it for twelve
years.

A Home Office bod even said on the news that the DNA of innocent people
should be kept "in case they offend again".