(1) Subject to subsection (3), the Commission shall publish and from time to time revise, in such form and manner as the Commission considers appropriate, a code -

(a) for authorised officers and the Commission for the conduct of investigations under section 19, and

(b) for the Commission for the conduct of proceedings before the Commission under sections 22A to 22E.

(2) An authorised officer or a member of the Commission, as the case may be, shall have regard to a code published under subsection (1)(a) or (b), as the case may be, in the performance of his or her functions as they relate to investigations or proceedings, as appropriate.

(3) The Commission may, where it considers it appropriate, make regulations providing for the conduct of investigations under section 19 and proceedings before the Commission under sections 22A to 22E, having regard to the need for fairness in the conduct of such investigations and proceedings, in particular the need to address conflicts of interest which may arise in investigations or proceedings.