N.D. Cent. Code § 29-22-28

If the jurors render a verdict which is neither a general nor a special verdict, the court, with proper instructions as to the law, may direct them to reconsider it, and it cannot be recorded until it is rendered in such form that it can be clearly understood therefrom whether the intent of the jurors is to render a general verdict or to find the facts specially and to leave the judgment to the court.