26. — (1) The functions set out in subsections (4) and (5) of section 21, shall be exercisable, for the purposes of the Act of 1982, by a person authorised by the Minister under section 11 of that Act.

(2) A person who—

(a) obstructs or interferes with a person authorised by the Minister under the Act of 1982 in the exercise of functions under that Act shall be guilty of an offence under this Act,

(b) refuses to comply with any request or requirement of a person so authorised in the exercise of functions under that Act shall be guilty of an offence under this Act.