In the video, an officer monitoring political campaigners seems to be persuading a young activist to become an informant and feed him information about other protesters.
The officer also says that it is “impossible” to infiltrate police into the university.
The activist met the man first, and then, as he didn’t want to become an informant, he contacted the Guardian. The journalists offered him to wear a hidden camera and record the second conversation – which he agreed to.
The young man participated as an activist in many rallies, and was even detained, but never charged.
The officer’s name hasn’t been revealed, and the Guardian calls the person Peter Smith. The incident took place in October.
He wanted the young man to name students who were attending rallies, list the vehicles they traveled in to demonstrations, and identify leaders of protests. Plus, the officer demanded the activist look up data on planned protests on Facebook.
The activist was initially told that there were implications for “national security,” but when he asked what those might be, the officer dropped the subject.
Points of special interest for the officer were UK Uncut, a campaign against government cuts and tax avoidance; Unite Against fascism group; environmental activists.
The activist also asked the policeman if a group Cambridge Defend Education (protesting against education cuts and increase in fees) would be of interest – and immediately got a positive answer.
A demonstrator gestures as students occupy the grounds of Senate House at Cambridge University, in Cambridge eastern England November 24, 2010. (Reuters/Darren Staples)
"That's the sort of thing that we would be looking for. Again, basic sort of stuff. It's all the internet. When they have meetings and they are discussing what they are going to do, that's when we'll say: 'Will you go along?'" the policeman told him.
The officer also offered the activist money for spying.
"You might go to a UK Uncut or Unite Against Fascism meeting one evening, you might get, say, 30 pounds just for your time and effort for doing that," the policeman said.
Following the disclosure of the video, the response from the UK academic, political, as well as activist communities has been harsh.
"This is yet another example of the questionable tactics that undercover police officers have taken in recent years to infiltrate campaign groups and extract information," Rachel Wenstone, deputy president of the National Union of Students, told the Guardian.
Julian Huppert, the Liberal Democrat MP for Cambridge, tweeted, "I'm shocked by this – seems wholly inappropriate."
Isabella Sankey, director of policy for human rights campaigners Liberty, said, "Proper judicial checks on police surveillance are badly overdue - Parliament must take responsibility and act."
However, Cambridgeshire police responded to the accusations, saying they weren’t breaching any laws.
"Officers use covert tactics to gather intelligence, in accordance with the law, to assist in the prevention and detection of criminal activity," the security forces said.
The revelations follow police being criticized over the secret surveillance since 1968. Police chiefs have been accused of unjustifiably infiltrating and disrupting non-violent political groups.