(1) The Minister may appoint in writing such and so many of his or her officers to be authorised officers for the purposes of all or any of the provisions of this Act and such appointment may be specified to be for a fixed period.

(2) A person who, immediately before the commencement of this section, was an authorised officer appointed under the Act of 2006 shall be deemed to be an authorised officer appointed under this Act, and this section shall apply accordingly in respect of that person.

(3) Every authorised officer appointed under this section shall be furnished with a warrant of appointment and shall, when exercising any power conferred on him or her by this section, if requested by a person affected, produce the warrant of appointment or a copy of it to that person.

(4) An appointment under this section as an authorised officer shall cease -

(a) if the Minister revokes the appointment,

(b) if the appointment is for a fixed period, on the expiry of that period, or

(c) if the person appointed ceases to be an officer of the Minister.

(5) For the purposes of this Act, an authorised officer may, subject to subsection (6) -