12.—(1) The Chief Veterinary Officer shall ensure that the presence or suspicion of infection or contamination is investigated in accordance with this article by a veterinary inspector as soon as is reasonably practicable.
(2) The Chief Veterinary Officer shall ensure that the presence or absence of disease on every premises in a temporary control zone where susceptible animals are kept or have in the 56 days before the declaration of that zone been kept is investigated in accordance with this article by a veterinary inspector as soon as is reasonably practicable.
(3) The veterinary inspector investigating shall take all steps he considers necessary to determine whether disease exists or has in the 56 days before the commencement of the investigation existed on the premises, and the related circumstances.
(4) Subject to paragraph (5), in taking such steps he shall ensure that any samples necessary for that determination are taken.
(5) Sampling shall not be considered necessary on premises which the Chief Veterinary Officer considers to be epidemiologically linked with a primary source of disease for which samples have already been taken.
(6) The veterinary inspector investigating may mark any animal, carcase or other thing liable to spread disease found on the premises.
(7) If the veterinary inspector investigating considers it necessary to submit a serological sample for testing to determine whether disease exists or has in the 56 days before the investigation existed on the premises, he shall declare the premises to be suspect premises.
(8) The veterinary inspector investigating shall communicate to the Chief Veterinary Officer his opinion as to whether disease exists or has in the 56 days before the investigation existed on any premises under inquiry.
(9) If his opinion is that disease exists or has in the 56 days before the investigation existed on any premises the officer investigating shall also communicate to the Chief Veterinary Officer his opinions on at least the following—
(a)the earliest date disease was present there;
(b)the origin of disease;
(c)any premises which may have been contaminated from the same origin;
(d)the extent to which animals other than bovine animals or swine may have been infected or contaminated;
(e)any premises to or from which disease may have been carried;
(f)any other premises which he suspects to be contaminated;
(g)whether any premises under inquiry comprise two or more separate production units because they comply with the criteria in paragraph 2A(7) of Schedule 3 to the Act,
and in sub-paragraphs (c), (e) and (f), “premises” includes premises outside England.
(10) The Chief Veterinary Officer shall consider and may confirm every opinion communicated to her under this article.
(11) If the Chief Veterinary Officer concludes after consideration of any opinion communicated to her under this article that one or more of the criteria in Schedule 2 are satisfied in respect of any premises she shall confirm disease there.
(12) If the Chief Veterinary Officer confirms disease at any premises the Secretary of State shall declare those premises to be infected premises.
(13) A declaration under paragraph (7) or (12) shall be by notice served on the occupier.
(14) Any infected premises is an infected place for the purposes of the Act.