A person is guilty of a class B felony if:
I. He knowingly provides a person in official custody, as defined in RSA 642:6, II, with anything which may facilitate such person's escape or the possession of which by such person is contrary to law or regulation, or in any other manner facilitates such person's escape; or
II. Being a person in official custody, as defined in RSA 642:6, II, he knowingly procures, makes or possesses anything which may facilitate escape.