Judicial review – Error of law. In the case of the first interested party, the Upper Tribunal (Administrative Appeals Chamber) (the UT) had erred in, having found that the First-Tier Tribunal (Social Entitlement Chamber) (the FTT) had made a material error of law, rather than quashing the original decision and/or remitting the case back to the FTT, upholding that decision for other reasons. However, the Court of Appeal, Civil Division, in dismissing the appeal in the second interested party's case, held that the UT had been justified in upholding the original FTT decision basing its decision on only one of the FTT's reasons.