inspector general; commissioner
A high-ranking supervisory title in military, police, or administrative organizations. Often used as a specific rank or position name.
彼は警察の総監に任命された。
He was appointed commissioner of the police.
軍の総監が視察に来る。
The inspector general of the army is coming for an inspection.
He took office as commissioner general of the Metropolitan Police Department.
She served as inspector general for ten years.