(1) Before a member of staff of the Office of Police Integrity performs any duties as a member of staff, he or she must take an oath or make an affirmation that he or she—
(a) will faithfully and impartially perform his or her duties; and
(b) will not disclose, except as authorised by law, any information received in the performance of those duties.
(2) The Director may require a person engaged under section 17(1)(b), or a member of a body engaged under that section, or an officer or employee of such a person or body, to take an oath or make an affirmation that the person, member, officer or employee—
(a) will faithfully and impartially perform his or her duties; and
(b) will not disclose, except as authorised by law, any information received in the performance of those duties.
(3) An oath or affirmation under this section is to be administered by the Director.