Sneak theft, snatch theft, stimulant drugs and traffic accidents are some of the various crimes and accidents in which anyone could get involved. The duty of the National Policy Agency is to protect the rights and freedom of each individual and maintain public safety and order by preventing and regulating such crimes and accidents, and realize a "society in which people can live safely in peace."

The police organization is made up of the National Public Safety Commission and the National Police Agency at the national level, and prefectural public safety commissions and prefectural police department at the prefectural level.

Under the control of the National Public Safety Commission, the National Police Agency not only plans and drafts police-related systems, develops the basis for police activities including police communications, education and training of police personnel, and crime statistics, but also provides guidance and coordination concerning national or wide-regional issues to prefectural police departments.

Maintain on public safety and order