The is an agency administered by the National Public Safety Commission of the Cabinet Office in the cabinet of Japan, and is the central coordinating agency of the Japanese police system.Unlike comparable bodies like the U.S. Federal Bureau of Investigation, the NPA does not have any police officers of its own. Instead, its role is to determine general standards and policies, although in national emergencies or large-scale disasters the agency is authorized to take command of prefectural police forces. Policy for the NPA in turn is set by the National Public Safety Commission.OrganizationRegional BureausCommunications DepartmentsRankPolice officers are divided into nine ranks: : The Chief of National Police Agency. The rank outside. 1 capacity. : The Chief of Metropolitan Police Department. 1 capacity. : Deputy Commissioner General, Deputy Superintendent General, The Chief of Regional Police Bureau, The Chief of Prefectural Police Headquarters, others. 38 capacity. : The Chief of Prefectural Police Headquarters. : The Chief of Police Station(large). More than this rank, all police officer join to National Police Agency. : The Chief of Police Station(small or middle), The Vice Commanding Officer of Police Station, Commander of Riot Unit. : Squad Commander of Police Station, Leader of Riot Company. :Squad Sub-Commander of Police Station, Leader of Riot Platoon. National Police Officer 1st class's career start from this rank. :Field supervisor, Leader of Police box. National Police Officer 2nd class's career start from this rank. : Honorary rank of Police Officer. :Prefectural Police Officer's career start from this rank. The NPA Commissioner General holds the highest position of the Japanese police. His title is not a rank, but rather denotes his position as head of the NPA. On the other hand, the MPD Superintendent General represents not only the highest rank in the system but also assignment as head of the Tokyo Metropolitan Police Department.