Florida v. Riley, 488 U.S. 445 (1989), was a United States Supreme Court decision which held that police officials do not need a warrant to observe an individual's property from public airspace.
Read more about Florida V. Riley: Facts, Issue(s) Before The Court, Decision and Rationale, Justice O'Connor's Concurrence, Justice Brennan's Dissent, Justice Blackmun's Dissent