However, as Katayama pointed out, it was true that when they submitted the document of the Shakai minshuto's formation, the police had already learned about it, and thus the Ministry of Home Affairs had adopted a policy to ban the political party in advance.
もっとも、片山が指摘したように、警察が事前に社会民主党の結成を探知し、内務省が事前に禁止の方針を決めていたことは事実であった。