Tom Whitehead writes in the Daily Telegraph: Tory MP Damian Green has won a battle with police to have his DNA profile removed from the national database. In a case that will prompt widespread calls for the records of hundreds of thousands of innocent people to be deleted, the shadow immigration minister successfully argued that he was an “exceptional case”. He had demanded he be erased from the system after no charges were brought against him following his arrest over Whitehall leaks last year. But the decision by Scotland Yard immediately is certain to spark fresh demands that the DNA of all innocent people should be removed. Ministers are under intense pressure to delete the records of at least 850,000 people on the database who have never been convicted of an offence.