This video from Britain says about itself:
4 February 2013
The ‘Special Demonstrations Squad‘ are reported to have been undercover police officers who infiltrated protest groups from the late 1960’s to the mid 1990’s- and it is claimed by Scotland Yard that the Squad had now ‘disbanded’.
By Conrad Landin in Britain:
Deceived partner speaks of secret officer’s treachery
Wednesday 29th July 2015
IT WAS 10 years after Alison’s long-term partner disappeared that she was able to convince more than a few friends that he was an undercover police officer.
She believed he was Mark Cassidy, a joiner from Birkenhead who headed out at 6.30am each morning to work on building sites during the five years they lived together, from 1995 to 2000.
As she left the Royal Courts of Justice yesterday, I asked Alison whether she had any hope that the inquiry would force the police to reveal more information.
“I just don’t know,” she said. “Some public inquiries have made significant progress, and some have just been a whitewash.
“But, throughout all of our legal battles, there’s been overwhelming evidence that these people are who we say they are.”
Now with children of her own, Alison is more keen than ever to break the Met’s continued stonewalling.
She welcomed Lord Justice Pitchford’s specific references to activists being targeted for their political allegiances and the effect on their personal lives.
“But when you’ve had the experience I’ve had, you become very cynical about the state’s functions,” she added.
BEHIND BRITAIN’S ELECTRONIC SURVEILLANCE SYSTEM “From the beginning, my investigations revealed a once-unimaginable scope of governmental surveillance, collusion, and concealment by the British and U.S. governments — practices that were always as much about domestic spying during times of peace as they were about keeping citizens safe from supposed foreign enemies, thus giving the British government the potential power to become, as our source that night had put it, a virtual ‘police state.’” [The Intercept]