frogwoman
No amount of cajolery...
I did respond to your point. "Looking at ... activities and behaviour" means surveillance. And, as I posted, that neither produces the same level of detailed intelligence product as infiltration and is much, much more expensive.
Asa for what crimes were suspected, I don't know as I don't have access to the files behind the operation. And neither do you.
But surely it should be obvious just by looking at them?
and im sorry, this is gonna sound stupid, but there are (to use a daily mail cliche) murderers etc on the streets, there was that guy Peter Tobin who has been convicted recently after murdering people across the country since the 70s and never been caught, and it shocks me that so much police attention is given to people who werent doing any harm to anyone but who happened to have different views. i mean what on earth did they think they were doing? how did it justify all the money spent on it?