Paddington Green Police Station is located in Paddington, central London, England. The station is operated by the Metropolitan Police Service, and is a conventional police station, open to members of the public from 08:00 - 20:00 Monday to Sunday. It also serves as the most important high-security station in the United Kingdom. This is because prisoners suspected of terrorism are held at the station for questioning. The building is a typical 1960s office block, but underneath the station are sixteen cells located below ground level, which have a separate custody suite from the building's other cells. Building work was completed in 1971.