Crowd control is a public security practice in which large crowds are managed in order to prevent the outbreak of crowd crushes, affray, fights involving drunk and disorderly people or riots. Crowd crushes in particular can cause many hundreds of fatalities. Effective crowd management is about managing expected and unexpected crowd occurrences. Crowd control can involve privately hired security guards as well as police officers. Crowd control is often used at large, public gatherings like street fairs, music festivals, stadiums and public demonstrations. At some events, security guards and police use metal detectors and sniffer dogs to prevent weapons and drugs being brought into a venue.
During the 2014 London Marathon, a police officer keeps spectators behind a fence, while first aiders patrol
Garda Síochána officers on guard duty at a cleared street in Dublin, Ireland when President Obama visited the country in 2011.
Kyoto Prefectural Riot Police Unit officers on duty during the Gion Matsuri 2008 festival.
A crowd is as a group of people that have gathered for a common purpose or intent. Examples are a demonstration, a sports event, or a looting. A crowd may also simply be made up of many people going about their business in a busy area.
A crowd of people returning from a show of fireworks spills into the street stopping traffic at the intersection of Fulton Street and Gold Street in Lower Manhattan
A crowd watches the Battle of the Beach 2 – Far Rockaway Skatepark – September, 2019
A crowd leaves the Vienna station on the Washington Metro in 2006.
A crowd in front of the Presidential Palace on July 21, 1924, in Helsinki, Finland
