Tokyo Metropolitan Police Department
The Metropolitan Police, with a staff of more than 40,000 police officers, and over 2,800 civilian personnel, manages 102 stations in the prefecture.
Metropolitan Police Marine Policing Unit
When they were initially formed in 1839, Thames Division had three different ranks of Inspector and this was due to legislation involving the boarding of vessels on the Thames. The ranks originally date back to the old Thames River Police and were primarily due to the special powers invested to Inspectors on the river.