31.—(1) Any premises which are partly inside and partly outside a protection zone shall be deemed to be wholly inside that zone.
(2) Any premises (except premises which are also partly inside a protection zone) which are partly inside and partly outside a surveillance zone shall be deemed to be wholly inside that zone.
(3) Any protection zone or surveillance zone is an infected area for the purposes of the Order.
(4) Nothing in paragraph (1) shall deem any part of a premises outside Northern Ireland to be inside a protection zone and nothing in paragraph (2) shall deem any such part of a premises to be inside a surveillance zone.