13.—(1) Where a bovine animal has reacted to a diagnostic test for brucellosis or where an officer reasonably believes that brucellosis exists on any premises, the officer may serve a notice on the owner or person in charge of the animal requiring them to notify the Secretary of State within a specified period of any full-term calving by the animal.
(2) Where a notice has been served under paragraph (1) and there is any full-term calving by the bovine animal to which the notice relates, the placenta and, if it dies at or after birth, the calf, must be retained by the owner or person in charge of the animal until such time as an officer serves a notice requiring the disposal or destruction of the placenta and calf.