N.D. Cent. Code § 28-26-29: When additional surety demanded

In an action in which surety for costs has been given, the defendant at any time before judgment, after reasonable notice to the plaintiff, may move the court for additional surety on the part of the plaintiff, and if on such motion the court is satisfied that the surety has removed from this state or is not sufficient, the action may be dismissed, unless in a reasonable time to be fixed by the court sufficient surety is given by the plaintiff.