The Security Bureau of the National Police Agency (警察庁警備局, Keisatsu-chō Keibi-kyoku) is a bureau of the Japan's National Police Agency in charge of national-level internal security affairs. It supervises the Security Bureau and the Public Security Bureau of the Tokyo Metropolitan Police Department, and Security departments of other Prefectural police headquarters for those issues.
The NPA SB is currently being commanded by Kenichi Sakurazawa.
Organization of the Security Bureau is as follows:
The Security Department (警備部, Keibi-bu) is charged with internal counter-terrorism, countering cybercrime and surveillance of potentially threatening groups, organisations, and social phenomena: It's also tasked with providing close protection requirements to VIPs.
The Foreign Affairs and Intelligence Department (外事情報部, Gaiji-jōhō-bu) is charged with counter-intelligence, and international counter-terrorism:
The Security Operations Department (警備運用部, Keibi-unyō-bu) replaced the former Security Division (警備課, Keibi-ka) in 2019. It's mandated with security and protecting VIPs (1st Division) and response to large-scale disaster or terrorism (2nd Division).
Prospective SB officers are trained at the National Police Academy in intelligence gathering techniques.