17.—(1) Paragraphs (2) and (3) apply where a sample of seed potatoes is required for the purposes of these Regulations.
(2) Where a sample is required for the purposes of regulation 8 or 9, an authorised officer may take a sample of seed potatoes of such quantity or number and from such part, or parts, of the growing or harvested crop as the authorised officer considers appropriate.
(3) Where a sample is required otherwise than as described in paragraph (2), an authorised officer may take a sample only in accordance with Schedule 8.