During Voldemort's rule, Muggle-borns were legally required to register with the Muggle-Born Registration Commission, headed by Dolores Umbridge. During this time, the Department of Mysteries claimed that Muggle-borns acquired their magic by stealing magic and wands from "real" wizards. Other wizards and witches rejected this notion, such as Ron Weasley, who asks how such an accusation can be proven. After the fall of Voldemort, Dolores Umbridge is imprisoned in Azkaban, with the other members of the commission either imprisoned or becoming fugitives.