19.—(1) Where, under these Regulations, an investigator wishes to interview the member concerned as part of his investigation, he shall, if reasonably practicable, agree a date and time for the interview with the member concerned.
(2) Where no date and time is agreed under paragraph (1), the investigator shall specify a date and time for the interview.
(3) The member concerned shall be given written notice of the date, time and place of the interview.
(4) The investigator shall, in advance of the interview, provide the member concerned with such information as the investigator considers appropriate in the circumstances of the case to enable the member concerned to prepare for the interview.
(5) The member concerned shall attend the interview.
(6) A police friend may not answer any questions asked of the member concerned during the interview, however, at any time during the interview the member may consult with his friend. The interview may be stopped to allow consultation to take place.