Pub. L. 88-241, pt. II, tit. 16, ch. 7, sec. 16–705
Jury trial; trial by court
§ 16–705. Jury trial; trial by court (a) In a criminal prosecution within the jurisdiction of the Court of General Sessions in which, according to the Constitution of the United States, the accused would be entitled to a jury trial, the trial shall be by jury, unless the accused in open court expressly waives trial by jury and requests to be tried by the judge. In the latter case, the trial shall be by the judge, and the judgment and sentence shall have the same force and effect in all respects as if they had been entered and pronounced upon the verdict of a jury. (b) In any case where the accused would not by force of the Constitution of the United States be entitled to a trial by jury, the trial shall be by the court without a jury, unless it is a case wherein the fine or penalty may be more than $300, or imprisonment as punishment 77 Stat. 559for the offense may be more than ninety days and the accused demands a trial by jury. In the latter case the trial shall be by jury. (c) The jury for service in the criminal division of the court shall consist of twelve persons, unless the parties, with the approval of the court and in the manner provided by rules of the court, agree to a number less than twelve.