The Marine Policing Unit (MPU) is based at Wapping Police Station alongside the River Thames. There has been a police building for river police at this site since 1798. 

The MPU is responsible for policing 47 miles of the River Thames in London between Dartford and Hampton Court. It also provides a response to over 250 miles of waterways and other bodies of water across the rest of London, such as lakes, reservoirs and canals. 

As a 24 hours a day, seven days a week frontline policing unit, MPU officers will face many of the same situations as our landside colleagues, such as community based issues, security, and crime and antisocial behaviour.