judicata

What Is Collateral Estoppel And Res Judicata? Terms: Res judicata: The doctrine of res judicata bars claims that have either been litigated or that could have been litigated from being litigated again. Collateral estoppel: The doctrine of collateral estoppel bars issues that have been litigated from being litigated again. Are collateral estoppel and res judicata