Two Chinese nationals sent to prosecutors office in building labeled as a "police base" Two were executives of an organization for Chinese residents in Japan located in Chiyoda Ward, Tokyo. The building where this organization was located was revealed in a report published in 2022 by Safeguard Defenders, a human rights organization based mainly in Spain.

There is a suspicion that it was one of the "police bases" that China has established around the world. At this time, no acts that violate Japan's sovereignty have been confirmed.