Investigating authority powers expanded to compel records, examine witnesses, and seize documents in securities investigations. The regulation empowers the Investigating Authority to call for information and inspect books, registers and other documents of listed or prospective listed companies and require intermediaries or persons associated with the securities market to produce records. It may retain produced materials for a specified period, examine and record oral statements and administer oaths, call for information from banks and public bodies, seek court orders for seizure where documents may be tampered with, and conduct searches and seizures in accordance with the Code of Criminal Procedure.