18.—(1) The certificate of analysis of any feed to be sent pursuant to—
(a)section 77(4) of the Act; or
(b)regulation 15(4) or 16(3),
must be in the form set out in Schedule 4 and must be completed in accordance with the notes to that Schedule and with paragraphs 4 and 5 of Part C of Annex II to Regulation 152/2009.
(2) A certificate of analysis by an agricultural analyst or the Government Chemist is to be received, in any proceedings, as evidence of the facts stated in the certificate if the party against whom it is to be given in evidence—
(a)has been served with a copy of it not less than twenty-one days before the hearing; and
(b)has not, before the seventh day preceding the hearing, served on the other party a notice requiring the attendance of the person who made the analysis.
(3) Any document purporting to be a certificate of analysis for the purposes of paragraph (2) is to be deemed to be such a certificate unless the contrary is proved.