In all criminal prosecutions, the accused
shall enjoy the right to a speedy and public
trial, by an impartial jury of the State and district wherein the crime
shall have been
committed; which district shall have been previously ascertained by law,
and to be
informed of the nature and cause of the accusation; to be confronted with
the
witnesses against him; to have compulsory process for obtaining witnesses
in his favor,
and to have the assistance of counsel for his defence.