wikipedia police system of japan :
http://en.wikipedia.org/wiki/Police_system_of_Japanwikipedia: criminal justice system of japan
http://en.wikipedia.org/wiki/Criminal_j ... m_of_Japanwikipedia: japanese law
http://en.wikipedia.org/wiki/Japanese_lawYour under arrest fansite has some info:
http://www.princeton.edu/~tpeng/As for women in the japanese police force (if you wanted to make Sakaki a police officer of some type.) it's very sexist. Women are not allowed to carry weapons. Jobs assigned to women fall into the categories of traffic, social work, and undercover work. Women in the traffic division typically spend their time directing traffic, writing tickets, and impounding illegally parked vehicles. Women assigned to social work usually spend their time giving directions, counseling juveniles, or making presentations on traffic safety and crime prevention. Undercover female officers are usually assigned to combat shoplifting or pick pocketing. While working at the station, female officers usually serve tea to visitors and male officers.
As for weapons used by the Japanese police typically they are only armed with a club/night stick. Some police use the jo which is a four foot wooden staff. Only special units carry firearms.
The agency most euivelent to the FBI would be the National Police Agency.
From wikipedia:
The National Police Agency (警察庁; Keisatsu-Chou) 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 comparative bodies like the US 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.