Civil Service Personnel Rule 185

185. The Preliminary Enquiry Board:
(a) shall make the enquiry seriously as their main duty;
(b) shall complete the enquiry within the prescribed period;
(c) may inspect the departmental documents and accounts related to the case;
(d) may obtain the explanation of the service personnel under enquiry;
(e) may call and question the service personnel under enquiry;
(f) may call and question the witnesses;
(g) may, if the service personnel under enquiry absconds or refuses to be enquired or fails to appear before the Preliminary Enquiry Board without any sufficient reasons, examine the witnesses in the absence of the said service personnel. The examination of the witnesses in the absence of the accused service personnel shall be recorded systematically in the case with the description of the reasons to do so.