Harry Potter and the Order of the Phoenix
BY ORDER OF THE HIGH INQUISITOR OF HOGWARTS
All student organizations, societies, teams, groups and clubs are henceforth disbanded.
An organization, society, team, group or club is hereby defined as a regular meeting of three or more students. (17.4)
"You applied for the Defense Against the Dark Arts post, I believe?" Professor Umbridge asked Snape.
"Yes," said Snape quietly.
"But you were unsuccessful."
Snape's lip curled.
Professor Umbridge scribbled on her clipboard.
"And you have applied regularly for the Defense Against the Dark Arts post since you first joined the school, I believe?"
"Yes," said Snape quietly, barely moving his lips. He looked very angry.
"Do you have any idea why Dumbledore has consistently refused to appoint you?" asked Umbrdige.
"I suggest you ask him," said Snape jerkily. (17.137-146)
As a matter of fact, Minerva, it was you who made me see that we needed a further amendment ... you remember how you overrode me, when I was unwilling to allow the Gryffindor Quidditch team to re-form? How you took the case to Dumbledore, who insisted that the team be allowed to play? Well, now, I couldn't have that. I contacted the Minister at once, and he quite agreed with me that the High Inquisitor has to have the power to strip pupils of privileges, or she – that is to say, I – would have less authority than common teachers! (19.141)