I have a recollection of how Hubbard order attackers should be dealt with.
It was about getting their sources of income away or something. The point
was to render the attacker without means to contiue -- picketing at places
of work is part of that. The letter to the Andreas place of work fits in
that as well. Does anyone know what PL (is it a PL?) that is?
Of course this is a standard, elementary action of any organization or
nation at war.
But you could pick some specific references from Hubbard's PL "Battle
Tactics," e.g.:
http://www.gerryarmstrong.org/50grand/cult/sp/pl-1969-02-16-battle-tactics.html