16.—(1) Where the presence of vectors is suspected on premises where African swine fever has been confirmed, any building that has housed pigs (and the surrounding environment) must be checked by an inspector for the presence of vectors and, if deemed necessary, a veterinary inspector (or any person acting under the direction of a veterinary inspector) may—
(a)arrange for the obtaining of specimens of the vectors and proportionate further monitoring; and
(b)require the occupier to implement practical vector control measures.
(2) Where such specimens are obtained the appropriate authority must arrange for appropriate laboratory tests to be carried out on them to confirm or negate the presence of the African swine fever virus in the vectors.