If a hearing is being held in private, a person must not be present at the hearing unless the person is—
(a) a member; or
(b) a member of the staff of the commission directed to be present; or
(c) a lawyer assisting the commission; or
(d) the judicial officer the subject of the complaint; or
(e) the lawyer representing that judicial officer; or
(f) entitled under a direction under section 37 (3) (a) to be present.