Christina Eckes (University of Amsterdam) has published 'EU Accession to the ECHR: Between Autonomy and Adaptation' in the Modern Law Review, Vol. 76, Issue 2 (2013) pp. 254-285. This is the abstract:
After the European Union's accession to the European Convention on Human Rights the EU will become subject to legally binding judicial decisions of the European Court of Human Rights (ECtHR) and participate in statutory bodies of the Council of Europe (Parliamentary Assembly; Committee of Ministers) when they act under the Convention. Convention rights and their interpretation by the ECtHR will be directly enforceable against the EU institutions and against Member States when acting within the scope of EU law. This will vest the ECHR with additional force in a number of Member States, including Germany and the UK. All Member States will further be subject to additional constraints when acting under the Convention system. The article considers the reasons for, and consequences of the EU's primus inter pares position under the Convention and within the Council of Europe, and the likely practical effect of the EU's accession for its Member States.