Broad concept of constitutional jurisdiction – Triangle between Karlsruhe, Strasbourg and Luxembourg – European vocation of the German Constitutional Court and Basic Law – European Convention on Human Rights – Karlsruhe decisions can be reviewed in Strasbourg – Human rights-related constitutional court – European Court of Justice developed into constitutional court of the Union – Verbund between three courts – No simplistic hierarchy – Verbund techniques – Dialogue in Human Rights; Interplay in Integration – Federal Constitutional Court and European Court of Human Rights functionally comparable – Both Courts seek substantive coherence as Verbund technique – Federal Constitutional Court commits all German authorities to the Convention – Federal Constitutional Court and ECJ – Principle of openness to European Law – Sharing and assigning responsibilities in complex system – Solange, ultra vires and identity review – Responsibility for integration, due by Court and other German bodies – Federal Court contributes to common European Constitutional order – Europe-wide discursive struggle and ‘Lernverbund’