While the Japanese authorities were in general quite strict in the regulations they imposed on Taiwan, there was one exception: They adopted a policy of “ natural and gradual eradication ” with regard to opium.
至此，民眾黨的革命姿態與總督府結怨已深，加上一九三○年民眾黨內部分裂，蔡培火、林獻堂等保守人士另組「台灣自治聯盟」，給予當局「民眾黨被激進份子掌握」之由，一九三一年就被新上任的總督下令解散。