Educational Decree Number Twenty-Four

"All Student Organisations, Societies, Teams, Groups, and Clubs are henceforth disbanded. An Organisation, Society, Team, Group, or Club is hereby defined as a regular meeting of three or more students. Permission to re-form may be sought from the High Inquisitor (Professor Umbridge). No Student Organisation, Society, Team, Group, or Club may exist without the knowledge and approval of the High Inquisitor. Any student found to have formed, or to belong to, an Organisation, Society, Team, Group, or Club that has not been approved by the High Inquisitor will be expelled."

- The Decree

The Educational Decree Number Twenty-Four was the first Educational Decree created by Dolores Umbridge, then-Hogwarts High Inquisitor. It was passed to prevent the formation of Dumbledore's Army.

Background
Shortly after their first Defence Against the Dark Arts lesson with Dolores Umbridge, it soon became clear to HHarry Potter, Ronald Weasley and Hermione Granger that practical defensive magic would not be taught in the class. Instead, a Ministry-approved course of theory would be taught. Minister Cornelius Fudge was afraid that Albus Dumbledore would use these lessons to train an army of wizards and witches to oppose him and try to take over the Ministry since he refused to believe that Lord Voldemort had returned. Concerned that they needed defensive magical skills to combat Lord Voldemort and his Death Eaters, Hermione proposed the formation of a practical study group to be taught by Harry. The association became known as Dumbledore's Army and its first meeting took place at the Hog's Head pub in Hogsmeade. Without anyone noticing, the meeting was overheard by Willy Widdershins, who informed Umbridge of the meeting in a plea-bargain to avoid punishment for a series of Regurgitating Toilet incidents.

Creation
After hearing about the defensive magic organisation, Dolores Umbridge used her power as Hogwarts High Inquisitor to pass this Educational Decree on October 7 1995, which forbade the regular meeting of three or more students without the High Inquisitor's consent. Any student found to be in noncompliance of the Decree was to be expelled immediately.

Reaction
This Educational Decree disbanded all of the student organisations, like the Gobstones club and Quidditch teams. As such, there was initially some disaprovement from the student body, but as Umbridge eventually reformed said organisations, the main student body was not very affected by it. However, the members of the Dumbledore's Army became upset and speculated that someone had told Umbridge about the meeting. 

Abolishment
The decree was eventually abolished when Dolores Umbridge was suspended from her post as High Inquisitor and Albus Dumbledore returned to his post as Headmaster following the Battle of the Department of Mysteries, in the summer of 1996.

Reinstatement
During Severus Snape's tenure as Headmaster of Hogwarts, and Alecto and Amycus Carrow's as Deputy Heads, this Decree was reinstated to prevent the reformation of Dumbledore's Army and oppress the rest of the student body. After the Battle of Hogwarts, on May 2 1998 the Decree was presumably abolished again.

Appearances

 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Order of the Phoenix (film)
 * Harry Potter and the Order of the Phoenix (video game)
 * Harry Potter and the Deathly Hallows