4.—(1) The Minister may, if he or she considers it necessary in the interest of national security or public policy, by order (referred to in this Act as an “exclusion order”) exclude any non-national specified in the order from the State.

(2) A person who contravenes a provision of an exclusion order shall be guilty of an offence.

(3) The Minister may by order amend or revoke an order made under this section including an order under this subsection.