Power to summon persons: designated safeguards officers may compel evidence and documents; inquiries treated as judicial proceedings. Rule 13 empowers the Director General of Safeguards or an authorized officer to summon persons to give evidence or produce documents in inquiries, exercising powers analogous to a civil court under the Code of Civil Procedure to summon witnesses, examine evidence and compel production; such inquiries are deemed judicial proceedings for the purposes of criminal liability for false evidence and related offences.