28.—(1) A person who—
(a)sells, or offers or exposes for sale, or has in his possession for the purpose of sale, for human consumption; or
(b)uses in the manufacture of products for sale for human consumption;
the milk of any cow which to his knowledge has given tuberculous milk, or is suffering from emaciation due to tuberculosis, or from tuberculosis of the udder or any other disease of cows to which this Article applies, shall be guilty of an offence.
(2) In any prosecution under this Article, the defendant shall be deemed to have known that a cow had given tuberculous milk, or was so suffering as mentioned in paragraph (1), if he could with ordinary care have ascertained the fact.
(3) The diseases of cows to which this Article applies are those listed in Schedule 1 and any other disease to which the provisions of this Article are extended by regulations made by the Department for that purpose.