(1) In this Division—
"authorised officer" means—
(a) the Director; or
(b) a member of staff of the Office of Police Integrity who is authorised under subsection (2); or
(c) a person who has taken an oath or made an affirmation under section 18(2) and who is authorised under subsection (2).
(2) The Director may authorise a member of staff of the Office of Police Integrity or a person who has taken an oath or made an affirmation under section 18(2) to exercise the powers of an authorised officer under this Division.