Complex sentence: The case became "United States v. U.S. District Court", 407 U.S.297 (1972), on appeal to the United States Supreme Court a landmark decision prohibiting the government's use of electronic survelliance without a warrant.
Split into simpler sentences: The case became "United States v. U.S. District Court", 407 U.S.297 (1972), on appeal to the United States Supreme Court. The Court rendered a landmark decision prohibiting the government's use of electronic survelliance without a warrant.