(1) The Minister may appoint such and so many officers of the Minister as the Minister considers appropriate to be authorised officers for the purposes of section 250A.
(2) An authorised officer appointed under this section shall be furnished with a certificate of his or her appointment by the Minister.
(3) When exercising a power conferred on him or her by this section, an authorised officer shall, if requested by a person thereby affected, produce the certificate of his or her appointment to that person.
(4) An appointment under this section shall cease when -
(a) the Minister revokes the appointment,
(b) the person ceases to be an officer of the Minister, or
(c) if it is made for a fixed period, on the expiry of that period.