espionage. Cases The PSB had failed in securing a Russian man wanted for spying in Japanese territory as a suspected agent of the SVR since the 1960s when he left Japan in 1995 and reentered the country several times before being unaccounted for when the spy used a Japanese name to obtain a Japanese passport in Vienna. An ex-Japanese Air Self-Defense Forces warrant officer had been investigated by the PSB in 2002 for divulging military secrets under the Mutual Defense Assistance Agreement to a Russian GRU operative, who was identified as Aleksei Shchelkonogov. Three activists of the Tachikawa Jieitai Kanshi Tentomura had been said to be prisoners of conscience by Amnesty International when they had arrested by police with the PSB investigating them for conducting anti-war activities after illegally entering an SDF housing complex in Tachikawa in 2004. PSB officers had been involved in the arrest of former Cabinet Intelligence and Research Office (CIRO) official Toshihiko Shimizu, accused of providing classified data to a Russian embassy official, supposedly posing as a diplomat in 2008. under the . On December 15, 2020, PSB officers investigated the activities of a South Korean man living in Tokyo accused of hacking into the Chongryon website and the Korea News Service. Scandals After a discovery of sophisticated radios by police during a raid on a JRCL Revolutionary Marxist Faction safehouse on April 10, 1998, PSB officials had reorganized their communications network to better safeguard it against unwanted intrusions. In 2014, a report was made thanks to a leak that PSB officers were conducting covert surveillance activities on Muslims residents living in the Greater Tokyo Area. Organization In the Bureau, there are divisions and units as below: In addition to four deputy managers mandated for indoor service (, , and ), there are eight deputy managers mandated for public security investigation. The Fifth and Sixth Deputy Manager of Public Security Investigation are mandated for counter-terrorism investigations, and from the First to Fourth are mandated for others. There are four deputy managers and eight units, all are mandated for public security investigation against left-wing rebel groups. There are three deputy managers and seven units, mainly mandated for public security investigation against left-wing groups and labor unrest. There are five deputy managers and nine units, all are mandated for public security investigation against right-wing groups. There are two deputy managers and units, mandated for public security investigation affairs