Seated buses are used by police forces for transporting large numbers of officers to a needed area, such as for crowd control at sports events and demonstrations, or to facilitate large scale deployments for more serious riot control, such as the UK miners' strike (1984–1985).
Police buses are also used at some large events as static temporary holding and processing areas, where detained people can be processed, and held until onward transport in another vehicle is possible.
One example of this type of bus is the MCI D4000ISTV The police may also use buses converted by a bus manufacturer or other specialist company (from a new or retired school bus-style body), to serve more specific purposes.
The Toronto Police Service, for instance, has used retired transit buses for their fleet.
[1] Other roles for converted police buses can include being used in public information or awareness campaigns, or as mobile recruitment displays.