Fauntleroy Doctrine Law and Legal Definition

Fauntleroy Doctrine is a principle which says a state must give full faith and credit to another state's judgment if the other state had proper jurisdiction, even if the judgment is based on a claim that is illegal in the state in which enforcement is sought. The standard was set in the case Fauntleroy v. Lum, 210 U.S. 230 (U.S. 1908) from which the doctrine gets its name.