In any case, whether a misdemeanor or felony, a trial jury may be waived by the consent of the defendant and the state's attorney expressed in open court and entered on the minutes of the court. Otherwise, the issues of fact must be tried by the jury.
N.D. Cent. Code § 29-16-02
Issues of fact tried by jury - When trial by jury may be waived
Official source: North Dakota Legislative Branch. Reproduced from public-domain North Dakota statutes; confirm against the official source for the current text. Not legal advice.