19.—(1) The supervising officer must appoint the investigating officer or some other member of the force, who is an officer of at least the rank of inspector, or counsel or a solicitor to present the case against the member concerned.
(2) The member concerned may conduct his case in person or be represented by a member of the force selected by him or, if he has given notice in accordance with regulation 15 that he wishes to be legally represented, by counsel or a solicitor.