Third pillar – European Arrest Warrant – Nature of thirdpillar – Litigation before national constitutional courts –Primacy of EU law over national law – Differing national attitudeswith regard to the status of third pillar law – Process ofapproximation: first pillar and third pillar – Achieving consistencythrough primacy of third pillar – Judicial protection of position ofindividual – Lisbon Treaty and the unification of EU law