(1) Section 156 of the Criminal Procedural Code allows any officer in charge of a police station to investigate any cognizable case without a magistrate's order if the case falls under the jurisdiction of the local court.
(2) No investigation conducted under this section can be called into question due to lack of jurisdiction.
(3) A magistrate may also order an investigation under this section at the pre-cognizance stage before taking cognizance of a case under Section 190.