The Marine Policing Unit (MPU) is one of the most fascinating corners of London’s law enforcement history. While Robert Peel’s "bobbies" took to the streets in 1829, London’s river police were already decades into the job. In fact, they are recognised as the oldest continuously serving police force in the world.
Today, they are the waterborne arm of the Met, swapping heavy boots for lifejackets and pavement beats for 47 miles of the River Thames.
The Shocking Origin: The Marine Police Office (1798)
In the late 18th century, London's docks were absolute chaos. The Port of London was the busiest in the world, and an estimated £500,000 worth of imported cargo, which was a staggering sum at the time, was being stolen every year by organised river pirates and corrupt dockworkers.
