Rule 38 Federal Rules of Appellate Procedure is about Frivolous Appeal—Damages and Costs. It is under Title VII (General Provisions) of the Rules.
If a court of appeals determines that an appeal is frivolous, it may, after a separately filed motion or notice from the court and reasonable opportunity to respond, award just damages and single or double costs to the appellee.
Rule 5.1 United States Federal Rules of Criminal Procedure Rule 5.1 of the Federal Rules of Criminal Procedure is about Preliminary Hearing. It is under Title II (Preliminary Proceedings)
Rule 5 United States Federal Rules of Criminal Procedure Rule 5 of the Federal Rules of Criminal Procedure is about Initial Appearance. It is under Title II (Preliminary Proceedings)
Rule 4.1 Federal Rules of Criminal Procedure Rule 4.1 of the Federal Rules of Criminal Procedure is about Complaint, Warrant, or Summons by Telephone or Other Reliable Electronic Means.
Rule 4 Federal Rules of Criminal Procedure Rule 4 of the Federal Rules of Criminal Procedure is about Arrest Warrant or Summons on a Complaint. It is under Title
