In Re Hinterlong

OPINION ON REHEARING

SUE WALKER, Justice.

We deny the motions for rehearing filed by relator and real parties in interest, withdraw our prior opinion and judgment and substitute the following opinion.

I. INTRODUCTION

Relator Matthew T. Hinterlong seeks mandamus relief from a trial court order denying his motion to compel discovery of the identity of, and other information relating to, a student who provided a crime stoppers tip to Arlington Martin High School (AMHS). The tip resulted in Hin-terlong’s expulsion and placement in alternative school. In two issues, Hinterlong contends .that the trial…