Section 156 in The Code of Criminal Procedure
Title: Police officer‘s power to investigate cognizable case
(1) Any officer in charge of a police station may, without the order of a Magistrate, investigate any cognizable case which a Court having jurisdiction over the local area within the limits of such station would have power to inquire into or try under the provisions of Chapter XIII.
(2) No proceeding of a police officer in any such case shall at any stage be called in question on the ground that the case was one which such officer was not empowered under this section to investigate.
(3) Any Magistrate empowered under section 190 may order such an investigation as above-mentioned.
Title: Procedure for investigation
1) If, from information received or otherwise, an officer in charge of a police station has reason to suspect the commission of an offence which he is empowered under section 156 to investigate, he shall forthwith send a report of the same to a Magistrate empowered to take cognizance of such offence upon a police report and shall proceed in person, or shall depute one of his subordinate officers not being below such rank as the State Government may, by general or special order, prescribe in this behalf, to proceed, to the spot, to investigate the facts and circumstances of the case, and, if necessary, to take measures for the discovery and arrest of the offender:
(a) when information as to the commission of any such offence is given against any person by name and the case is not of a serious nature, the officer in charge of a police station need not proceed in person or depute a subordinate officer to make an investigation on the spot;
(b) if it appears to the officer in charge of a police station that there is no sufficient ground for entering on an investigation, he shall not investigate the case.
1[Provided further that in relation to an offence of rape, the recording of statement of the victim shall be conducted at the residence of the victim or in the place of her choice and as far as practicable by a woman police officer in the presence of her parents or guardian or near relatives or social worker of the locality.]
(2) In each of the cases mentioned in clauses (a) and (b) of the proviso to sub-section (1), the officer in charge of the police station shall state in his report his reasons for not fully complying with the requirements of that subsection, and, in the case mentioned in clause (b) of the said proviso, the officer shall also forthwith notify to the informant, if any, in such manner as may be prescribed by the State Government, the fact that he will not investigate the case or cause it to be investigated.
1. Ins. by Act 5 of 2009, s.11 (w.e.f. 31-12-2009).
Title: Report how submitted
(1) Every report sent to a Magistrate under section 157 shall, if the State Government so directs, be submitted through such superior officer of police as the State Government, by general or special order, appoints in that behalf.
(2) Such superior officer may give such instructions to the officer in charge of the police station as he thinks fit, and shall, after recording such instructions on such report, transmit the same without delay to the Magistrate.
Title: Power to hold investigation or preliminary inquiry
Such Magistrate, on receiving such report, may direct an investigation, or, if he thinks fit, at once proceed, or depute any Magistrate subordinate to him to proceed, to hold a preliminary inquiry into, or otherwise to dispose of, the case in the manner provided in this Code.
Title: Police officer‘s power to require attendance of witnesses
(1) Any police officer making an investigation under this Chapter may, by order in writing, require the attendance before himself of any person being within the limits of his own or any adjoining station who, from the information given or otherwise, appears to be acquainted with the facts and circumstances of the case; and such person shall attend as so required:
Provided that no male person 1[under the age of fifteen years or above the age of sixty-five years or a woman or a mentally or physically disabled person] shall be required to attend at any place other than the place in which such male person or woman resides.
(2) The State Government may, by rules made in this behalf, provide for the payment by the police officer of the reasonable expenses of every person, attending under sub-section (1) at any place other than his residence.
1. Subs. by Act 13 of 2013, s. 14, for "under the age of fifteen years or woman" (w.e.f. 3-2-2013)