BNSS Section 31: Public when to assist Magistrates and police
Bharatiya Nagarik Suraksha Sanhita, 2023 · Chapter 4: Powers of Superior Officers of Police and Aid to the Magistrates and the Police
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31. Every person is bound to assist a Magistrate or police officer reasonably demanding his aid—
(a) in the taking or preventing the escape of any other person whom such Magistrate or police officer is authorised to arrest; or
(b) in the prevention or suppression of a breach of the peace; or
(c) in the prevention of any injury attempted to be committed to any public property.
Bare act text for reference, current to 1 July 2024. It is not legal advice; check the official gazette for authoritative text.