December 1, 1925: Early in the morning, the Special Higher Police Division of Kyoto Prefectural Police Department attacked and conducted domiciliary searches on dormitories of Kyoto Imperial University, Doshisha University, and so forth as well as the houses and lodgings of members of the Shakai Kagaku Kenkyu-kai to seize a lot of seditious documents and arrest 33 students.
1925年12月1日：この日早朝、京都府警特高課が京大・同大などの寄宿舎、両大学の社会科学研究会員の自宅・下宿を急襲、家宅捜索のうえ「不穏文書」多数を押収したほか学生33名を検束。