7.—(1) If an inspector has reasonable grounds for supposing that the disease exists or has within 56 days existed on any premises he shall serve a notice in form A on the occupier of the premises declaring them to be an infected place.
(2) An infected place shall be subject to the rules mentioned in article 9.
(3) The rules mentioned in article 9 shall continue in force until the notice in form A is cancelled in accordance with article 8(5) or (6).
(4) A veterinary inspector may at any time alter the limits of an infected place by the service of a notice in form C on the occupier.