" there must have been a mistake as to an existing fact, including a mistake as to the availability of evidence on a particular matter; the fact or evidence must have been "established", in the sense that it was uncontentious and objectively verifiable; the appellant (or his advisors) must not have been responsible for the mistake; and the mistake must have played a material (though not necessarily decisive) part in the tribunal's reasoning."
"[The Applicant] denied any substance misuse. She said that at the time she had suffered another mini stroke after reporting earlier to be feeling unwell. Surprisingly, neither she nor the AP staff had summoned emergency assistance but she went to the local Hospital."