BNSS Section 31
CHAPTER IV POWERS OF SUPERIOR OFFICERS OF POLICE AND AID TO THE MAGISTRATES AND THE POLICE
31. Public when to assist Magistrates and police
31. Public when to assist Magistrates and police.—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.