《明史·志·卷六十五》
京营除了监督似外，总理捕务的两名，提督禁门、巡视点军的三名，皇帝都让御马监、司礼监、文书房的太监担任，于是军营事务完全被宦官控制了。
京营自监督外，总理捕务者二员，提督禁门、巡视点军者三员，帝皆以御马监、司礼、文书房内臣为之，于是营务尽领于中官矣。
Aside from supervision of the capital's army, the emperor had eunuchs from the Imperial Horse Bureau, the Ceremonial Bureau, and the Literary Bureau serve as the two leaders overseeing arrests, and the three leaders supervising the forbidden gates and inspecting military training, so military affairs were completely controlled by the eunuchs.