This is a quote from the book "The Gentleperson's Guide To Forum Spies" by Cryptome.org
...affected or minimally committed fellow activists to persuade them (via psychological tactics described above) to turn against the movement and give false testimony against their former compatrio
ts. They will plant illegal substances on the activist and set up an arrest; they will plant false information and set up "exposure," they will send incriminating letters [emails] in t
he name of the activist; and more; they will do whatever society will allow.
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This booklet in no way covers all the ways agents use to sabotage the lives of sincere an dedicated acti...