The Court of Justice of the European Union (the Court of Justice) decided to strike again. On 18 December 2014, for the second time in history, the Court rejected the European Union's (EU) accession to the European Convention on Human Rights (ECHR). Although the judges do not seem to negate the idea as a matter of principle, they made the renegotiation of the Draft Accession Treaty very difficult, to say the least. The message sent by the Court of Justice to the Member States may have surprised some, but for many it was a rather expected development. The Court of Justice has always been a fierce defender and promoter of the autonomy of EU law. For that purpose, the procedure based on Article 218 (11) TFEU has been, among the others, the Court's greatest weapon. Over the years a clear pattern has emerged: Whenever there is a threat to the autonomy and to the Court's exclusive jurisdiction, the judges will not shy away from taking bold decisions going against the will of the Member States. For obvious reasons, the raison d'être behind the Court's decision is kept secret behind the doors of the deliberation rooms at Kirchberg in Luxembourg. Still, it cannot be denied that Opinion 2/13 shows that the Court of Justice will not give up its resistance to the ECHR accession so easily. In 1996, in Opinion 2/94, the Court held that the European Community, as the law stood then, had no competence to accede to ECHR. Now that Article 6(2) TEU provides for an obligation to accede, subject to conditions laid down in Protocol No 8 to the Founding Treaties, the Court has opted for strict interpretation of the latter, which, ultimately turns the caveats laid down therein into locks. It is clear that these caveats turned into locks are something that the judges will hold on to in the future and, by the same token, they will happily pursue interpretation that is very different from what the Member States intended when negotiating the Treaty of Lisbon and the Draft Accession Agreement.