This office belonged to the Senior Undersecretary to the Minister for Magic and later, during the puppet administration of Pius Thicknesse, it served as the office for the Head of the Muggle-Born Registration Commission. The only known person to have been in these positions, and thus to have used this office, was Dolores Umbridge. It was found on Level One of the Ministry of Magic as part of the department of Minister for Magic and Support Staff.