A person is guilty of criminal anarchy when (a) he advocates the overthrow of the existing form of government of this state by violence, or (b) with knowledge of its contents, he publishes, sells or distributes any document which advocates such violent overthrow, or (c) with knowledge of its purpose, he becomes a member of any organization which advocates such violent overthrow.
Criminal anarchy is a class E felony.
N.Y. Penal Law § 240.15