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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The wintry weather is continuing across the Anglia region with sleet and snow in many areas. Here is a selection of pictures from viewers.
Cold with further wintry showers which may merge into longer periods of snow after midnight.
A man in his 70s has been badly burned in a flat fire in Norwich