(a) Trial by Jury. Cases required to be tried by jury shall be so tried unless the defendant files a written waiver of a jury trial, and has consent of the court.(b) Number of Jurors. Unless otherwise provided by these rules, the number of persons serving on a jury shall be 12, not including alternates. If prior to trial on a noncapital case all defendants so elect, the case shall be tried by a jury of not less than six, or by the court.(c) Juror Unable To Continue. If a case has not yet been submitted to the jury and a juror is unable to continue and no alternate jurors were selected or none are available, or if a case has been submitted to the jury and a juror is unable to continue, all defendants may elect to continue with the remaining jurors. The court shall declare a mistrial for any defendant who does not elect to continue with the remaining jurors. If some, but not all, defendants elect to continue with the trial, the court shall proceed with the trial for those defendants unless the court determines manifest necessity requires a mistrial.(d) Trial Without Jury. In a case tried without a jury, the court shall enter findings of fact and conclusions of law. In giving the decision, the facts found and the conclusions of law shall be separately stated. The court shall enter such findings of fact and conclusions of law only upon 5 days’ notice of presentation to the parties.