Ex Dolo Malo Non Oritur Actio Law and Legal Definition

Ex dolo malo non oritur actio is a Latin maxim which means ‘no right of action can have its origin in fraud’. No court will lend its aid to a man who founds his cause of action upon an immoral or an illegal act. The maxim lies at the foundation of a general rule of public policy, the rule that the courts will not sustain an action which arises out of the moral turpitude of the plaintiff or out of his violation of a general law enacted to carry into effect the public policy of the state or nation. [Marshall v. Lovell, 19 F.2d 751, 755 (8th Cir. Minn. 1927)]