On May 19th, the Secretary Kinoshita submitted the notification of the Shakai minshuto's formation to the police; however, on the 20th they summoned Kinoshita to the Kanda Police Station and handed him a mandate by the Tokyo Metropolitan Police commissioner Kanemichi ANRAKU.
19日に幹事の木下が結成の届出を出したが、警察は20日に木下を神田警察署に呼び出し、警視総監安楽兼道の命令書を手渡した。