18.—(1) On completion of the investigation the investigator shall as soon as practicable submit a written report on the investigation to the appropriate authority.
(2) The written report shall—
(a)provide a summary of the evidence;
(b)attach or refer to any relevant documents; and
(c)indicate the investigator’s opinion as to whether there is a case to answer in respect of misconduct or gross misconduct or whether there is no case to answer.
(3) If at any time during the investigation the investigator believes that the appropriate authority would, on consideration of the matter, be likely to determine that the special conditions are satisfied, the investigator shall, whether or not the investigation is complete, submit to the appropriate authority—
(a)a statement of the belief and the grounds for it; and
(b)a written report on the investigation to that point.