(1)For the purposes of this Act an authorised officer shall on producing if so required written evidence of his authority have power to enter land (other than a dwelling house) at all reasonable times for the purpose of ascertaining whether any requirement of a scheme or any condition subject to which payment may be or has been made under a scheme is being, or has been, complied with.
(2)If any person wilfully obstructs or impedes an authorised officer in the exercise of his powers under the preceding subsection he shall be liable on summary conviction to a fine not exceeding £400.
(3)In this section " authorised officer " means—
(a)in relation to England or Wales an authorised officer of the Minister;
(b)in relation to Scotland an authorised officer of the Secretary of State ; and
(c)in relation to Northern Ireland an authorised officer of the Minister or of the Ministry of Agriculture for Northern Ireland.