Summons and compulsion powers enable investigators to compel attendance, documents and treat proceedings as judicial for truthfulness. Investigating authorities under the Prevention of Money Laundering Act have civil court like powers for discovery, inspection, enforcing attendance and oath, compelling production of records, receiving affidavit evidence, issuing commissions, and other prescribed matters; officers may summon persons to give evidence or produce records, such proceedings are judicial proceedings under the Penal Code, and officers may impound and retain produced records subject to recording reasons and supervisory limits on retention by lower officers.