A case can be dismissed "with prejudice" or "without prejudice. In the formal legal world, a court case that is dismissed with prejudice means that it is dismissed permanently.Download and complete Motion and Notice forms from the Illinois Office of the Courts. This template is a motion for voluntary dismissal without prejudice in an Illinois circuit court civil case. Specifically, a trial court loses its jurisdiction to vacate an order of dismissal, entered with or without prejudice, after 30 days.