This case was made for you.
Makes no difference you say? The school, even with a tip, had no right to search the student? OK.
And when your child ends up in the emergency room because of the Ecstasy pills they got from Savana, and you find out that the school had information that Savana was selling these pills to students and did nothing, you'd just shrug your shoulders and say, "That's the price we pay for freedom"?
Why do I doubt that? Why do I think you'd sue the school out of existence?