10. Procedure in respect of investigations.

(a) shall forward a copy of the complaint or, in the case of any investigation which he proposes to conduct on his own motion, a statement setting out the grounds therefor, to the public servant concerned and the competent authority concerned;
(b) shall afford to the public servant concerned an opportunity to offer his comments on such complaint or statement; and
(c) may make such orders as to the safe custody of documents relevant to the investigation as he deems fit.