N.D. Cent. Code § 29-22-20
The court, with the consent of the state's attorney and the defendant, may instruct the jurors that if they should agree upon a verdict during a temporary adjournment of the court, they may sign the same by their foreman, seal it in an envelope, and deliver it to the officer in whose charge they are, after which they may separate until the next convening of the court, at which time they shall reassemble in the jury box. As soon as convenient, the officer shall deliver the sealed verdict to the clerk. When the jurors have reassembled in open court, the envelope must be opened and the same proceedings must be had as upon the reception of other verdicts, except that the consent by the defendant to a sealed verdict constitutes a waiver of the defendant's right to poll the jury as provided in rule 31 of the North Dakota Rules of Criminal Procedure.
N.D.C.C. § 29-22-20