BACK TO SECTIONS(2012) 5 SCC 1
IPC 1860REPEALED
Section 151
Knowingly joining assembly of five or more persons after it has been commanded to disperse
Replaced by: BNS 193
BailableCognizable: CognizableAny Magistrate
THE STATUTE
Original Text
Whoever knowingly joins or continues in any assembly of five or more persons likely to cause a disturbance of the public peace, after such assembly has been lawfully commanded to disperse...
Simplified
Section 151 targets assemblies that didn't necessarily start with illegal intent but were ordered to disperse because they were likely to disturb peace — and continued anyway. Even a lawful gathering that becomes potentially dangerous can be commanded to disperse, and remaining after such a command becomes a criminal offence. This provision is commonly used in protest situations where police issue dispersal orders under the Code of Criminal Procedure (now BNSS Section 129) — continuing to assemble after the lawful dispersal command triggers Section 151 liability.
Legal Evolution
Section 151 gave police officers a preventive arrest power predating the CrPC's more elaborate framework. Drawn from English police powers to prevent a breach of the peace, it enables arrest without a magistrate's order when five or more persons are about to commit a known offence. The provision has been criticized for potential misuse but has been upheld as a necessary tool for pre-emptive public order maintenance.
Landmark Precedents
Ramlila Maidan Incident v. Home Secretary (2012)
RELEVANCE
Examined police dispersal of a sleeping crowd — discussed the limits of dispersal orders under Section 151 IPC and the Article 19(1)(b) right to peacefully assemble.
Practical Scenarios
"Continuing to stand in a protest crowd after police have announced over a megaphone that the assembly is unauthorised and must disperse immediately — Section 151."
Common Queries
Section 144 CrPC (now BNSS 163) is the preventive order issued before an assembly. Section 151 IPC is the punishment for disobeying a dispersal order after a crowd has formed. Both address public assemblies but at different stages.