Indian Criminal Procedure Law

Section 159 CrPC and Section 178 BNSS: Magistrate's Power to Hold Investigation or Preliminary Inquiry

Section 159 of the Code of Criminal Procedure, 1973 empowered a Magistrate receiving a police report to direct an investigation, conduct a preliminary inquiry, or depute a subordinate Magistrate. The corresponding provision under the Bharatiya Nagarik Suraksha Sanhita, 2023 is Section 178 BNSS.

Updated: 17 October 2026 | Subject: Criminal procedure and Magistrate's powers

Current law: The BNSS came into force on 1 July 2024 and replaced the CrPC for new proceedings, subject to the savings and transitional provisions in Section 531 BNSS. Section 159 CrPC remains relevant to proceedings governed by the earlier Code.

Section 159 CrPC, 1973 - Power to Hold Investigation or Preliminary Inquiry

The original provision stated:

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.

The phrase "such report" refers to the police report contemplated by the preceding provisions on investigation, especially Section 157 CrPC. The section gave the Magistrate a supervisory procedural choice upon receiving that report.

Section 178 BNSS, 2023 - Corresponding Current Provision

Section 178 of the Bharatiya Nagarik Suraksha Sanhita, 2023 is titled "Power to hold investigation or preliminary inquiry". It provides:

The Magistrate, on receiving a report under section 176, 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 Sanhita.

The provision substantially carries forward the authority in Section 159 CrPC, updating the reference to the police report under Section 176 BNSS. It should be read with Section 177 BNSS concerning the channel through which a police report may be submitted.

What Powers Does the Magistrate Have?

  • Direct an investigation: On receiving the report contemplated by Section 176 BNSS, the Magistrate may require an investigation in accordance with the Sanhita.
  • Conduct a preliminary inquiry: The Magistrate may personally undertake a preliminary inquiry to assess the circumstances reported.
  • Depute a subordinate Magistrate: The Magistrate may assign the preliminary inquiry to a Magistrate subordinate to him.
  • Otherwise dispose of the matter: The Magistrate may take another course permitted by the applicable procedural law.

The word "may" indicates that the section confers discretion; it does not require the Magistrate to order an investigation in every case. That discretion must be exercised within the powers and procedures prescribed by law.

How the Police Report and Preliminary Inquiry Process Works

Section 176 BNSS (corresponding to Section 157 CrPC) governs the procedure for investigation and the sending of reports to the Magistrate. Section 177 BNSS (corresponding to Section 158 CrPC) governs submission of such reports through a superior police officer where the State Government so directs. Once the relevant report reaches the Magistrate, Section 178 BNSS provides the options explained above.

A preliminary inquiry under Section 178 is a judicially supervised procedural step arising from the report received. It should not be confused with the police preliminary enquiry contemplated by the proviso to Section 173(3) BNSS, or with a full criminal trial. The particular powers exercised depend on the facts and the statutory framework.

CrPC and BNSS Provision Reference

  • Section 157 CrPC / Section 176 BNSS: Procedure for investigation.
  • Section 158 CrPC / Section 177 BNSS: Report how submitted.
  • Section 159 CrPC / Section 178 BNSS: Power to hold investigation or preliminary inquiry.
  • Section 160 CrPC / Section 179 BNSS: Police officer's power to require attendance of witnesses.

Frequently Asked Questions

Which BNSS section replaces Section 159 CrPC?

Section 178 BNSS is the corresponding provision governing a Magistrate's power to direct investigation or hold a preliminary inquiry on receiving the specified police report.

Can the Magistrate appoint another Magistrate to conduct the inquiry?

Yes. Section 178 BNSS permits the Magistrate to depute a Magistrate subordinate to him to hold the preliminary inquiry.

Is an investigation compulsory whenever a police report is received?

No. The provision permits several lawful courses of action, including directing investigation, conducting or deputing a preliminary inquiry, or otherwise disposing of the matter under the Sanhita.

Does Section 159 CrPC still apply after 1 July 2024?

Section 159 CrPC can remain relevant to proceedings preserved by the savings clause in Section 531 BNSS. The governing provision should be identified from the date and status of the particular proceeding.

Official Acts and References

This article provides general legal information. The applicable statute, commencement provisions, and procedural history should be checked for each case.