148AF. (1) The procedure to be followed under this Part in relation to an investigation shall, subject to this Part, be such as shall be determined by the Board by rules made by it with the consent of the Minister.

(2) Without prejudice to the generality of subsection (1), rules under this section may—

(a) specify any forms to be used under this Part by a complainant, landlord, authorised officer or decision maker, and

(b) specify the period within which, in relation to a complaint the Board shall appoint an authorised officer or decision maker under section 148U.

(3) Subject to this Part and rules under this section, the procedure for carrying out an investigation by an authorised officer or making a decision by a decision maker shall be such as the authorised officer or decision maker considers appropriate in all the circumstances of the case.

(4) The authorised officer or decision maker shall perform his or her functions without undue formality where that is consistent with the due performance of those functions.]