The Hogwarts High Inquisitor's Order prohibits any professor from providing students with violent, morbid, or information that cannot be explained by magic. Any professor is prohibited from teaching students how to commit crimes in disguise by setting up crime-solving and decryption sessions in class. The above regulations are in accordance with Article 34 of the Education Order. Signed: High Inquisitor Dolores Jane Umbridge... "Good heavens, Hermione. I think we should go tell Professor Holmes that his entire course has been defined as illegal by the Ministry of Magic..." "Yes, Ron. But you probably can't find him now, because he just took Harry to the Chamber of Secrets." "The Chamber of Secrets? What is he doing there?" "Little things like stabbing himself with the fangs of basilisk and wipping the basilisk's corpse!"