In what case did the Supreme Court hold that with regard to searches and seizures school officials are not bound by the same restrictions as law enforcement agents

The case in which the Supreme Court held that with regard to searches and seizures school officials are not bound by the same restrictions as law enforcement agents:

In 1984, in New Jersey v T. L. O, the supreme court clarified this problem and in this case, the court found that students are protected from illegal searches by the fourth amendment but the school officials are not bound by same restrictions as law enforcement agents. In the world, outside of school police need some probable cause to conduct a search but educators can legally search students when there are reasonable grounds to believe the students have violated the law or they broken rules of school. In creating this distinction, the court recognized the needs of school officials to preserve an environment conductive to education and to secure the safety of students.