It was also responsible for licensing officials, impeachment and legal inquiries, which also extended to the control of King's relatives.
The board of inspection (as a governmental instrument) actually began several centuries earlier.
The system began in China, where the office played a wider role at the royal court.
In this sense, the office and its responsibility was in line with Saganwon where the subjects remonstrate the order of King.
The issue of royal court was to control over the power between the king and the subjects, keeping abreast of the order of the government, which later produced severe side effects in some cases.