Missouri Revised Statutes Title XXXV. Civil Procedure and Limitations § 514.170. Adjudication of costs upon dismissal of plaintiff's suit--in other cases

Upon the plaintiff dismissing his suit, or defendant dismissing the same for want of prosecution, the defendant shall recover against the plaintiff his costs; and in all other cases it shall be in the discretion of the court to award costs or not, except in those cases in which a different provision is made by law.