Roads and Transport Policing Command

The Roads and Transport Policing Command (RTPC – codenamed MO8) is a unit of the Metropolitan Police Service that is responsible for policing roads, buses, bus routes, taxis and minicabs. It was formed from two separate Commands: Safer Transport Command and Traffic Operational Command Unit (OCU).

Source: Wikipedia — Roads and Transport Policing Command (CC BY-SA 4.0)