On March 10, 1900, he strengthened the suppression of political activities and labor campaigns by establishing the Security Police Law, which stipulated the political organization and meeting reporting system; the right to break up political organizations or meetings; the prohibition of political activities by military, police, religionists, educators, females, those who were under age and those who were deprived of public rights; the limitation on soliciting for labor unions; and the prohibition of strikes.
明治33年（1900年）3月10日、政治結社・政治集会の届出制および解散権の所持、軍人・警察官・宗教者・教員・女性・未成年者・公権剥奪者の政治運動の禁止、労働組合加盟勧誘の制限・同盟罷業（ストライキ）の禁止などを定めた治安警察法を制定し、政治・労働運動などの弾圧を進めた。