When the defendant is acquitted, the defendant must be immediately discharged. When the defendant pleads guilty or is convicted, the magistrate may render judgment thereon as the case may require, being governed by the rules prescribed for the trial of indictable offenses, as far as the same are applicable.

If the judgment and costs are not fully and immediately satisfied, the magistrate shall indicate on the judgment the portion unsatisfied and shall promptly certify a copy of the judgment to the clerk of the district court. The clerk shall index and file the judgment, whereupon it is a judgment of the district court.