12.—(1) For the purposes of these Regulations and in particular for the purpose of securing that financial assistance under these Regulations is made in proper cases only, any person duly authorised in that behalf by the Secretary of State may, upon production if so required of his appointment or authority, at all reasonable times enter upon and inspect any land, and may—
(a)inspect any premises, plant and machinery, equipment or livestock in respect of which financial assistance under these Regulations has been made or claimed;
(b)require the occupier to furnish for inspection any book, account or other record in his possession or under his control which the authorised person considers necessary to substantiate eligibility for financial assistance under these Regulations.
(2) In exercising the power conferred on him by this regulation, an authorised person may be accompanied by such persons acting under his instructions as appear to him to be necessary and, in relation to the inspection of documents, he shall be entitled to take such copies or extracts therefrom as he may consider necessary.