In Hogwarts School of Witchcraft and Wizardry, the many underage wizards and witches are kept under control by the teachers through the many rules set there. Any miscreants are usually punished by the teachers or the Ministry of Magic, and the form of punishment depends on the severity of the mischief. These punishments can also be used in combination as the ones who hand them out see fit. During the 1995–1996 school year, when Educational Decree 25 was activated, Dolores Umbridge had the right to override the punishments given by other teachers, and alter them to her own wishes.