Formation As part of the modernization of Japan after the 1868
Meiji Restoration, the new
Meiji government sent
Kawaji Toshiyoshi on a tour of Western Europe in 1872 to study various law-enforcement systems. Toshiyoshi returned impressed with the structure and techniques of the police forces of
France's
Third Republic and of
Prussia as models for the new Japanese police system. With the establishment of the
Home Ministry in 1873, his recommendations were implemented, and civilian police powers became centralized at the national level, although implementation was delegated to the
prefectural level. Under the Home Ministry, the also had quasi-judicial functions, including the power to issue ordinances and to regulate
business licenses,
construction permits,
industrial safety and
public-healthissues, in addition to its
criminal-investigation and public-order functions. The centralized police system steadily acquired extra functions, until it controlled almost all aspects of daily life, including
fire prevention and the mediation of labor disputes. During the
Satsuma Rebellion of 1877, the lack of an organized, trained
standing army forced the central government to use units from the police bureau as
militia to suppress the uprising. , . After 1911, a separate department, the Special Higher Police (
Tokko), was established specifically to deal with political crimes and
counter-espionage. Similar to
Special Branches in the later
Commonwealth of Nations, the
Tokko investigated and suppressed potentially subversive ideologies, including
anarchism,
communism, and
socialism, as well as monitoring the growing foreign population within Japan. Its scope gradually increased to include members of
shinshūkyō,
Christians,
pacifists, student activists, liberals, and ultra-rightists. The
Tokko also regulated the content of motion pictures, political meetings, and election campaigns. The military came under the police jurisdiction of the
Kempeitai (founded in 1881) for the
Imperial Japanese Army and the
Tokkeitai (founded in 1942) for the
Imperial Japanese Navy, although both military organizations had overlapping jurisdiction over the civilian population. After the
Manchurian Incident of 1931, military police assumed greater authority, leading to friction with their civilian counterparts. After the start of the
Second Sino-Japanese War in 1937, police regulated industry and commerce (to maximize the war effort and to prevent speculation and hoarding), mobilized labor, and controlled transportation. The Tokyo metropolitan area came under the jurisdiction of the
Teikoku Keishichō (帝國警視廳) or
Keishichō, which was personally headed by Kawaji from 1874, and from which he could direct the organization of the national police system. == Operations overseas ==