He was also strict on corruption among government officials and actively rigorously investigated the Yamashiroya incident thought to involve domain clique member Aritomo YAMAGATA who held a great deal of power within the new government as well as the well as the scandal of Osarizawa copper mine thought to involve Kaoru INOUE, pushing for the temporary resignation of these two individuals in relation to a confrontation surrounding budgets.
また官吏の汚職に厳しく新政府で大きな力を持っていた藩閥の山縣有朋が関わったとされる山城屋事件、井上馨が関わったとされる尾去沢鉱山尾去沢銅山事件らを激しく追及、予算を巡る対立も絡み2人を一時的に辞職に追い込んだ。