“In the circumstances of the present case, where it is not in dispute that for a period prior to her claim for state pension credit the appellant had comprehensive sickness insurance cover and (as was conceded) sufficient resources for the purposes of Art 7(1)(b) of Directive 2004/38/EC (“the Directive”), it is necessary, pursuant to the decision of the Court of Justice of the European Union in C-140/12 Brey to carry out – in accordance with the requirements under, inter alia, Articles 7(1)(b) and 8(4) of the Directive – an overall assessment of the specific burden which granting that benefit would place on the social assistance system as a whole by reference to the personal circumstances characterising the individual situation of the person concerned. No such assessment having been carried out by either the respondent or the First-tier Tribunal, Directions are given … to enable the Upper Tribunal to do so prior to remaking the decision unders.12 of Tribunals, Courts and Enforcement Act 2007 .”