Students at Cambridge University say they're "appalled and shocked" to discover that police have been attempting to infiltrate and spy on their activities.
An undercover video has emerged of a student being asked by an officer to feed information on politically active campaigns and protest groups.
Cambridgeshire Police says its tactics are within the law, but civil liberty groups say it's an infringement of fundamental rights and covert operations on innocent groups should be banned.
Click below to watch a report from ITV News Anglia's Tanya Mercer
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Feeling milder today but occasional heavy rain will spread across the region with some strong winds in exposed areas. Highs 13 deg C.
November 2015 could heading for the record books as the warmest on record in East Anglia.
Showers will largely die away this evening and winds will decrease. Feeling chilly with clear spells. Lows of 3 deg C.