M.R.U. Crim. P. 48

(a) By the Attorney for the State. The attorney for the State may file a

written dismissal of an indictment, information, or complaint or any count of

an indictment, information, or complaint, setting forth the reasons for the

dismissal, and the prosecution relating to that dismissal shall thereupon

terminate. Such a dismissal may not be filed during the trial without the

consent of the defendant.

(b) By the Court.

(1) If there is unnecessary delay in bringing a defendant to trial, the court

may upon motion of the defendant or on the court’s own motion dismiss the

indictment, information, or complaint. The court shall direct whether the

dismissal is with or without prejudice.

(2) If no indictment has been returned by the grand jury within 6 months

after the initial appearance of the defendant or after the 3rd regularly

scheduled session of the grand jury after the initial appearance, whichever

occurs first, the court shall dismiss the complaint, unless within the time period

specified in this paragraph the attorney for the State moves to enlarge the

period and shows the court good cause why the complaint should remain on

the docket. The dismissal pursuant to this paragraph shall be without

prejudice.