out of curiosisty-how the "h" did the kid manage (with supervision from both you and the school) to get these notes on her backpack?
i can't imagine an elementary kid unsupervised to the extent that he could go into an empty classroom and place notes on a backpack (esp when the school had made a huge deal about it to the students previously).
hope canada is set up to actualy enforce the parents getting the kid help-here in the states the parents would get a lawyer or legal aide to argue that the kids rights were violated via no "miranda" and being a minor, revoking the confession and having them back in the classroom sans treatment in 48 hours.