Bharatiya Nagarik Suraksha Sanhita, 2023 · Chapter XII: Preventive Action of the Police
Section 170: Arrest to prevent commission of cognizable offences
In plain words
A police officer who knows of a plan to commit a cognizable offence can arrest the person planning it without a warrant or Magistrate's order, if the offence cannot be prevented otherwise. The person cannot be held for more than twenty-four hours unless further detention is authorised by law.
A simplified explanation, prepared with AI assistance from the official text below and checked automatically against it for numbers and cross-references. The official text is the law and prevails over this summary. Not legal advice.
Official text
(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.
Corresponding sections were matched by comparing the wording of both official texts, and for the IPC and BNS, also against a published correspondence table. Wording, punishments and structure often changed, so read both sections before relying on the match.
Source: India Code (indiacode.gov.in), the consolidated text published by the Legislative Department, Government of India. Text as updated on India Code on 12 September 2026. Words in square brackets [ ] were inserted or substituted by later amending Acts, and *** marks words omitted by an amendment. The amendment footnotes are not reproduced here. Official text on India Code.
Supreme Court judgments citing the section 170
No Supreme Court judgment in our database cites this section yet.