Enquiry procedure for suspension or cancellation requires notice, written reply, hearing rights, limited representation, and a reporting officer. Regulation 71 set the procedure for enquiries prior to suspension or cancellation: the Board may appoint enquiry officers who must issue a notice stating grounds and call for a show cause reply; the entity must submit a written reply with evidence and is entitled to a reasonable hearing; representation is by authorised persons but not lawyers unless the Board appoints a presenting officer; the enquiry officer may seek a presenting officer and must submit a report recommending action and grounds to the Board.