Section 170 BNSS: Arrest to prevent commission of cognizable offences (Formerly Section 151 CrPC)

Section 170 of Bharatiya Nagarik Suraksha Sanhita, 2023: Arrest to prevent commission of cognizable offences

Official Bare Act Text

Override / Mandate Mens Rea (Intent) Actus Reus (Conduct) Punishment Limitation Monetary

(1) A police officer knowing of a design to commit any cognizable offence may arrest, without orders from a Magistrate and without a warrant, the person so designing, if it appears to such officer that the commission of the offence cannot be otherwise prevented.

(2) No person arrested under sub-section (1) shall be detained in custody for a period exceeding twenty-four hours from the time of his arrest unless his further detention is required or authorised under any other provisions of this Sanhita or of any other law for the time being in force.

Statutory Defined Terms in this Section: (Click any term for official legal definition)

Cognizable Offence Sec 2(1)(c) Arrest Sec 35

Legal Commentary & Landmark Judgments: Section 170

Section 170 empowers a police officer knowing of a design to commit any cognizable offence to arrest, without orders from a Magistrate and without a warrant, the person so designing, if it appears that the commission cannot be otherwise prevented.

Knowledge of Criminal Design: Credible information that the person plans to commit a cognizable offence.
Doctrine of Necessity: Appears to the officer that commission of the offence cannot otherwise be prevented.
24-Hour Detention Limit: Detention cannot exceed twenty-four hours from arrest unless further detention is authorized under BNSS.

Key Landmark Precedents:

Ahmed Noormohmed Bhatti v. State of Gujarat (2005) 3 SCC 747: The Supreme Court upheld the constitutional validity of preventive arrest under Section 151 CrPC (Section 170 BNSS), but laid down strict guidelines to prevent misuse against political opponents and peaceful protesters.
Rajender Singh Pathania v. State (NCT of Delhi) (2011) 13 SCC 329: Condemned the routine misuse of preventive arrest in private landlord disputes, holding that arresting citizens without imminent danger of cognizable crime is an abuse of power.
D.K. Basu v. State of West Bengal (1997) 1 SCC 416: Affirmed that all arrestee rights (intimation to family, medical examination) apply strictly to preventive arrests.

Courtroom Practice & Strategic Litigation Guidance:

Master bail strategy under *Ahmed Noormohmed Bhatti*: The police cannot detain a person under Section 170 beyond 24 hours without a formal remand order under Section 126/187 BNSS. If produced before an Executive Magistrate, demand immediate release on personal bond.