Case law is law that is based on judicial decisions rather than law based on constitutions, statutes, or regulations. Case law concerns unique disputes resolved by courts using the concrete facts of a case.
Michigan v. Long, 463 U.S. 1032 (1983)
Long, 463 U.S. 1032 (1983), was a decision by the United States Supreme Court that extended Terry v. Ohio, 392 U.S. 1 (1968) to allow searches of car compartments during a stop with reasonable suspicion.