81.—(1) The Authority must maintain arrangements designed to enable it to determine whether—
(a)persons on whom requirements are imposed by or under Part 2, 3 or 4 of these Regulations are complying with them;
(b)there has been any contravention of regulation 110(1), 111(1) or 114(1)(a) or (2).
(2) The Authority may maintain arrangements designed to enable it to determine whether persons on whom requirements are imposed by or under Part 5 or 6 of these Regulations are complying with them.
(3) The arrangements referred to in paragraphs (1) and (2) may provide for functions to be performed on behalf of the Authority by any body or person who is, in its opinion, competent to perform them.
(4) The Authority must also maintain arrangements for enforcing the provisions of these Regulations.
(5) Paragraph (3) does not affect the Authority’s duty under paragraph (1).