(1)  The Secretary may authorise a State Service officer or State Service employee employed in the Department to perform the functions and exercise the powers of an authorised person for the purposes of this Act, and that officer or employee may hold that office in conjunction with State Service employment.

(2)  The Secretary may authorise a person who is not a State Service officer or State Service employee to perform the functions and exercise the powers of an authorised person for the purposes of this Act.

(3)  An authorisation under this section may be made on such conditions as the Secretary determines.

(4)  The Secretary may, at any time, revoke an authorisation or add, vary or revoke a condition of an authorisation.