(a) Grand Jury Miscellaneous Case. The clerk will assign each newly impaneled grand
jury a miscellaneous case number and will maintain the grand jury miscellaneous case under
seal.
(b) Extension of Session. A petition to extend the session of an impaneled grand jury
must be filed in the grand jury miscellaneous case.
(c) Pre-Indictment Challenge to a Grand Jury Subpoena or Proceeding.
(1) Any pre-indictment challenge to a grand jury subpoena or a grand jury proceeding
must be made in writing and filed on paper with the clerk. The clerk will assign the pre-
indictment challenge a miscellaneous case number and will maintain the matter under seal.
(2) A motion to quash the appearance of a witness or the production of records
commanded by a grand jury subpoena must be filed and served upon the United States no
later than 48 hours prior to the appearance or production date unless good cause exists for
a later filing. The challenged subpoena must be attached as an exhibit to the motion.