Dickerson (D) was indicted for bank robbery, conspiracy to commit bank robbery, and using a firearm in the course of a crime of violence. Before trial, D moved to suppress a statement he had made in an FBI office on grounds that he did not get his Miranda warnings before being interrogated. D's motion was granted. The 4th Circuit reversed; 18 U.S.C 3501 was satisfied in this case; under that statute, admissibility would only turn on whether or not the statements were voluntarily made. The 4th Circuit concluded that Miranda was not a constitutional holding and therefore Congress by statute could have the final say on the question of admissibility. The Supreme Court granted certiorari.