In United States v. United States District Court, the Ninth Circuit held that the circumstances of a child sexual abuse case did not warrant an exception to Rule 23 of the Federal Rules of Criminal Procedure, which requires the government\u27s consent for a defendant to waive a jury trial. The court determined that the district court\u27s ruling, which allowed the defendant to waive a jury trial without the government\u27s consent, was clearly erroneous as a matter of law, and granted the government\u27s petition for a writ of mandamus to require the district court to hold a jury trial