30.—(1) If an authorised officer of an enforcement authority wishes to take any of the measures referred to in Article 19(1)(a) and (b) of Regulation 882/2004 in respect of feed or food the officer shall serve a notice to that effect on the feed or food business operator, as the case may be, responsible for it after that feed or food business operator has been heard as provided in Article 19.
(2) If an authorised officer of an enforcement authority wishes to exercise any of the powers referred to in Article 19(2) of Regulation 882/2004 in respect of feed or food the officer shall serve a notice to that effect on the feed or food business operator, as the case may be, responsible for it.