Joe Brown is accused of robbing a bank Then a grand jury determines there is enough evidence to try Joe Brown After being indicted Joe Brown would argue his case before a what?

Answer 1

It will be heard in a court of 'original jurisdiction,' (i.e.: a court within the same jurisdiction in which the crime occurred).

Since bank robbery is both a federal and a state crime, if the defendant was indicted by a federal grand jury Joe would be tried in a US District Court. If the Feds waived jurisdiction to the state, then he would be tried in the criminal division of a state court.