The Director of the civil liberties organisation 'Big Brother Watch' has called for a change in how police surveillance operations are authorised.
Nick Pickles wants the police to have to get a judge to authorise secret operations, instead of the current framework which allows forces to sign off their own decisions.
He was responding to the news that some Cambridge University students were allegedly subject of a secret undercover operation from Cambridgeshire Police designed to collect intelligence on student demonstrations and protest groups.
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