The Supervisory Department of the Western Qin Empire had sub offices in governments at all levels, which were managed by the Sub-divisional Chief Supervisors. And the Routing Supervisor, whose status was between the General Chief Supervisor and the Sub-divisional Chief Supervisors, was also pretty paramount and powerful. His role was similar to the imperial envoy. His duty was to supervise specific cases, which required complete support of relevant Sub-divisional Chief Supervisors. ...