Public school students don’t lose their constitutional rights when they walk onto school property. This includes your expectation of privacy and the right to be free from unreasonable search and seizure under the Fourth Amendment.
Outside of school grounds, this usually means police officers and other law enforcement officials cannot search an adult without probable cause and a warrant. However, because of the special need to maintain school discipline and an orderly learning environment, the U.S. Supreme Court decided the probable cause standard can make it too hard for public school officials to justify the search of a student.
