[circlecity]

"And I don't think criminal would be down to the specific room. -PJ"

Why not? I think such a refusal to obey would also constitute disorderly conduct.

[Political Junkie Too]

Because the student has a right (and legal expectation) to be in the building. A room with a sign that says "Teachers Only," or "Authorized Personnel Only," or "Chess Club Only" are only school rules, not criminal law passed by representatives of the people.

You can’t arrest a child for not obeying a teacher. And a police officer should not be wasting his time enforcing a teacher's classroom rule, turning it into criminally disobeying him. Unless he's enforcing a duly passes law, it's called abuse of authority under color of law.

-PJ