Master From the King's Fort Chapter 31

The Jinyiwei belonged to the Twelve Guards, and under it were the North and South Pacification Offices. Together with the Jinwu Guard, Yulin Guard, Fujun Guard, Huben Guard and others, they were the emperor's personal guards, guarding the important capital.

The Southern Pacification Division was in charge of the internal affairs of the Jinyiwei and was in charge of the laws and regulations of the guard.

The Northern Pacification Office was in charge of the imperial prison and, by order of the emperor, could track down, arrest, interrogate and even punish criminal officials without going through the Ministry of Justice or the Dali Temple.

The two northern and southern pacification offices each had their own jurisdiction and were in charge of a garrison.

Mou Bin, the commander of the Embroidered Uniform Guard, was often stationed in the Northern Pacification Office. As the descendant of a meritorious official, Gu Qing was in charge of the Chengtianmen Commandery and was in charge of the imperial prison. His authority was no less than that of the Tongzhi.