(1) A person who has made a complaint or undertaken a preliminary investigation of the matter is not entitled to be a member of the Professional Practice and Conduct Committee.
(2) If—
(a) the Professional Practice and Conduct Committee is unable to hear the matter because there are not enough members available to sit on it; or
(b) the Institute is of the opinion that a person with special expertise is required for the hearing—
the Chairperson of the Council may fill a vacant position on the Professional Practice and Conduct Committee by appointing a person who is not a member of the Council.