Special Contexts

In New Jersey v. T.L.O., the Supreme Court held that public school officials are bound by the Fourth Amendment, but student searches in school are governed by a special reasonableness standard. Schools do not usually need a warrant or probable cause.

In Griffin v. Wisconsin, the Supreme Court upheld a warrantless search of a probationer's home under a Wisconsin regulation requiring reasonable grounds and supervisor approval. The Court treated probation supervision as a special need beyond ordinary law enforcement, allowing a limited departure from the usual warrant and probable-cause rules.