"…. This is an expert tribunal charged with administering a complex area of law in challenging circumstances. ….. the ordinary courts should approach appeals from … [such expert tribunals] … with an appropriate degree of caution; it is probable that in understanding and applying the law in their specialised field the tribunal will have got it right…. They and they alone are the judges of the facts. It is not enough that their decision on those facts may seem harsh to people who have not heard and read the evidence and arguments which they have heard and read. Their decisions should be respected unless it is quite clear that they have misdirected themselves in law. Appellate courts should not rush to find such misdirections simply because they might have reached a different conclusion on the facts or expressed themselves differently."
"…with which the ordinary courts should approach the decision of an expert tribunal. A decision that is clearly based on a mistake of law must, of course, be corrected. Its [i.e., the tribunal's] reasoning must be explained, but it ought not to be subjected to an unduly critical analysis….." 54. R (Jones) v First-tier Tribunal[2013] UKSC 19 ;[2013] 2 AC 48 concerned CICA. The FTT denied a claimant recovery, holding, on thefacts, that he had not sustained an injury directly attributable to a "crime of violence"
" ….it is primarily for the tribunals, not the appellate courts, to develop a consistent approach to these issues, bearing in mind that they are peculiarly well fitted to determine them. A pragmatic approach should be taken to the dividing line between law and fact, so that the expertise of tribunals at the first tier and that of the Upper Tribunal can be used to best effect. An appeal court should not venture too readily into this area by classifying issues as issues of law which are really best left for determination by the specialist appellate tribunals." 56. Lord Carnwath JSC observed (at [31]) that because of the important principle involved that case was one of three heard together by a three-judge panel presided over by a High Court Judge. In "normal circumstances", he continued (at [32]), "in the absence of some serious error of principle, one would not have expected there to have been a need for a further appeal to the higher courts."
" …Where, as here, the interpretation and application of a specialised statutory scheme has been entrusted by Parliament to the new tribunal system, an important function of the Upper Tribunal is to develop structured guidance on the use of expressions which are central to the scheme, and so as to reduce the risk of inconsistent results by different panels at the First-tier level."
" ... a husband and wife shall be treated as living apart unless they are living with each other in the same household, and references in this section to the parties to a marriage living with each other shall be construed as references to their living with each other in the same household." 23. That received this court's attention in Santos v Santos[1972] Fam 247 . Giving the judgment of the court, Sachs LJ observed first at page 262 and then at page 263: " ... use is again made of words with a well settled matrimonial meaning -- 'living together', a phrase which is simply the antithesis of living apart, and 'household', a word which essentially refers to people held together by a particular kind of tie, even if temporarily separated ... " ... 'living apart' ... is a state of affairs to establish which it is in the vast generality of cases arising under those heads necessary to prove something more than that the husband and wife were physically separated. For the purpose of that vast generality, it is sufficient to say that the relevant state of affairs does not exist while both parties recognise the marriage as subsisting. That involves considering attitudes of mind; and naturally the difficulty of judicially determining that attitude in a particular case may on occasions be great."