5.—(1) Subject to paragraph (2), premises which are only partly in a controlled zone are deemed to be wholly within the controlled zone.
(2) Premises in any controlled zone which are partly in one of the following zones and partly in another are deemed to be wholly in the zone furthest up the following list—
(a)protection zone;
(b)surveillance zone;
(c)restricted zone;
(d)temporary control zone;
(e)temporary movement restriction zone;
(f)low pathogenic avian influenza restricted zone;
(g)avian influenza prevention zone.
(3) Every controlled zone (other than an avian influenza prevention zone) is an infected area for the purposes of the Act.