Pari Delicto
Pari Delicto
[Latin, In equal fault.] The doctrine, also known as in pari delicto, that provides that courts will not enforce an invalid contract and that no party can recover in an action where it is necessary to prove the existence of an illegal contract in order to make his or her case.
pari delicto
adj. equal fault. (See: in pari delicto)