(1) If, after a case is referred to the Council for inquiry, the secretary receives further allegations of the matters set out in section 8(3) or 10(1) (as the case may be) of the Ordinance against the respondent, and the allegations are of the same nature as the case being investigated, the secretary shall submit the allegations to the chairman who may then direct that any or all of the allegations are to be inquired into at the same inquiry against the respondent.
(2) If the chairman makes a direction under subsection (1), further evidence which relates to the allegations mentioned in that subsection may be introduced at the inquiry in respect of the case, notwithstanding that the allegations have not been referred to the Committee or have not formed the subject of a determination of the Committee.
(3) If, at any time before the Council has made a determination under section 31, it appears to the chairman that a notice of inquiry is defective, the chairman may direct the secretary to amend the notice.
(4) After the amendment of the notice of inquiry, the secretary shall, unless the amendment does not affect the substance of the complaint or information-