(1)For the purpose of preventing the spread of disease, the Ministers may cause to be treated with serum or vaccine, or with both serum and vaccine, any animal or bird—
(a)which has been in contact with a diseased animal or bird, or
(b)which appears to the Ministers to be or to have been in any way exposed to the infection of disease; or
(c)which is in an infected area.
(2)The powers conferred by this section shall be construed as extending to the taking of any action—
(a)which is requisite for enabling the appropriate treatment to be administered, or
(b)which is otherwise required in connection with that treatment,
and for the purpose of exercising those powers any officer of the Minister may, subject to production of his authority on demand, enter any land or premises taking with him such other persons, if any, as he considers requisite.