“15. - … (2) The Upper Tribunal may – (a) admit evidence whether or not – (i) the evidence would be admissible in a civil trial in the United Kingdom; or (ii) the evidence was available to a previous decision maker.”
“i) Making perverse or irrational findings on a matter or matters that were material to the outcome (“material matters”); ii) Failing to give reasons or any adequate reasons for findings on material matters; iii) Failing to take into account and/or resolve conflicts of fact or opinion on material matters; iv) Giving weight to immaterial matters; v) Making a material misdirection of law on any material matter; vi) Committing or permitting a procedural or other irregularity capable of making a material difference to the outcome or the fairness of the proceedings; vii) Making a mistake as to a material fact which could be established by objective and uncontentious evidence, where the appellant and/or his advisers were not responsible for the mistake, and where unfairness resulted from the fact that a mistake was made.”
“when that list was quoted by a Tribunal of Commissioners in paragraph 30 of R(I) 2/06, that principle was omitted for reasons which are not entirely clear. A Three Judge Panel/Tribunal of Commissioners did later include this principle in paragraph 8 of R (DLA) 3/08 and since that date challenges on E and R grounds have been entertained in social security law [see, for example, paragraph 48 of ZM v Her Majesty’s Revenue and Customs (TC)[2013] UKUT 547 (AAC) and paragraphs 19-35 of DC v Department for Social Development (ESA) [2014] NI Com 49].”
“In our view, the time has now come to accept that a mistake of fact giving rise to unfairness is a separate head of challenge in an appeal on a point of law, at least in those statutory contexts where the parties share an interest in co-operating to achieve the correct result. Asylum law is undoubtedly such an area. Without seeking to lay down a precise code, the ordinary requirements for a finding of unfairness are apparent from the above analysis of CICB. First, there must have been a mistake as to an existing fact, including a mistake as to the availability of evidence on a particular matter. Secondly, the fact or evidence must have been “established”, in the sense that it was uncontentious and objectively verifiable. Thirdly, the appellant (or his advisers) must not have been responsible for the mistake. Fourthly, the mistake must have played a material (not necessarily decisive) part in the Tribunal’s reasoning.”
“In order to justify the reception of fresh evidence […], three conditions must be fulfilled: first, it must be shown that the evidence could not have been obtained with reasonable diligence for use at the trial; second, the evidence must be such that, if given, it would probably have an important influence on the result of the case, though it need not be decisive; thirdly, the evidence must be such as is presumably to be believed, or in other words, it must be apparently credible, though it need not be incontrovertible.”
“The admission of new evidence on such an appeal is subject to Ladd v Marshall principles, which may be departed from in exceptional circumstances where the interests of justice require.”
“It is common ground […] that new medical evidence sought to be adduced for the first time in the Upper Tribunal must be in line with the principles set out in Ladd v Marshall, namely that the evidence (a) could not have been obtained with reasonable diligence in advance of the hearing at first instance and (b) would have had an important influence on the result of the case. (There is also principle (c), that the new evidence must be prima facie credible, but that is not in issue here.)”
“There are cases in which an over strict application of the first principle against a party who appeared without representation, as Mr Hussain did in the First-tier Tribunal, can be contrary to the overriding objective of dealing with cases justly. I prefer, therefore, rather than asking whether a consultant’s report could have been obtained with reasonable diligence before the hearing in the FTT, to concentrate on the question of whether it would have been potentially decisive in Mr Hussain’s favour or at least have had an important influence on the result of the appeal. In my view, it would not.”
“Although she is slow over 300 metres, we consider it unlikely that she could manage that walking unless, on over 50% of days, she could move more than 50 metres, repeatedly, and taking no more than twice as long as the maximum period that a person without a relevant physical or mental condition would normally take to do this.”