If they had been inflitrating actual terrorist /anarchist orginisations that were commiting actual crimes involving violence Murder or even millions of pounds of property damage you could probably justify this shit.
But they werent nobody who was targeted was dangerous and niether was anyone with any connection to those targeted was dangerous no weapons were seized no illegal drugs seized no scary conspriacy uncovered or doomsday plan foiled in the nick of time.
Nobody targeted by this entire bullshit its was a complete waste of time the fact this bullshit went on for years and achieved fuck all the managers should be carpeted for wasting valuable resources for paranoia.
Most of these groups I could have " inflitrated" by buying a beer and asking what they were doing next weekend or picking up a copy of schnews