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.
The Railway Detective
The Detective Department of the Metropolitan Police Force (the Met) was founded in 1842 and so was only nine years old in 1851, when the story is set. Richard Mayne, who was the joint first commissioner of the Met, is depicted in meetings with Tallis, Colbeck and Leeming. His co-commissioner, Charles Rowan, had retired the year before. Mayne was in charge of policing at The Great Exhibition which opened on 1 May and was an outstanding success, thanks in no small part to effective policing. Mayne is the only real person who plays an active part in the novel.