The head of security of “Elohim City” (which was maybe 5 dilapidated trailers) was FBI, as was the FOUNDER, it later turned out.
Have you ever read a book called "Bill the Galactic Hero" by Harry Harrison?
It is a science fiction comedy story, and in the book it describes a "conspiracy" in which every single member of the movement was a government informant intending to entrap the other members of the conspiracy.
It was hilarious.