4. Where an inspector has reasonable grounds to believe that a TSE susceptible animal has been fed or has had access to—
(a)specified risk material;
(b)any material which the inspector has reasonable grounds to believe carries the risk of TSE infectivity; or
(c)animal protein for which he cannot establish the origin or the TSE infectivity risk,
he may serve a notice on the owner or person in charge of the animal prohibiting or restricting the movement of the animal from the premises described in the notice.