It should also be noted that the failure by a Member State to fulfil the above-mentioned obligation "(…)can be established only by means of sufficiently documented and detailed proof of the alleged practice of the national administration and/or courts, for which the Member State concerned is answerable".
Opozoriti je tudi treba, da je neizpolnjevanje države članice „mogoče dokazati le z dovolj podrobnim dokazovanjem, podprtim z dokumenti, prakso, ki se očita upravi in/ali nacionalnim sodiščem in se pripisuje zadevni državi članici“.