BBC News reports that a British court has “limited police powers to keep pictures of protesters in case they go on to break the law.”
Judges said police had been wrong to retain pictures of a lawful arms trade activist who was not suspected of any criminal offence.
The Metropolitan Police said they acted reasonably in retaining pictures of the campaigner, Andrew Wood from Oxford. […]
The court has told the Met to destroy the photographs if it does not challenge the ruling in the House of Lords. The force has indicated it will not appeal. […]
The judgement does not ban specialist police cameramen and photographers, known as Forward Intelligence Teams, but it does say the long-term retention of their pictures must be justified on a case-by-case basis.
Crucially, the ruling echoes a landmark privacy decision against the England and Wales DNA database at the European Court of Human Rights.
That judgement last December said police could not justify keeping forever the DNA profiles of people who were never charged with a crime.