The document discusses several court cases related to student drug testing policies. It summarizes the Vernonia School District v. Action case which upheld a school district's policy of random drug testing for student athletes. It also discusses the Pottawatomie County v. Earls case which upheld drug testing for students in extracurricular activities. Finally, it summarizes the Bean v. Tulia I.S.D case regarding a student who challenged his school's drug testing policy.