“ if a decision on a competent matter is so unreasonable that no reasonable authority could ever have come to it, then the courts can interfere”
“the issue is whether the release decision was so outrageous in its defiance of logic or accepted moral standards that no sensible person who had applied his mind to the question to be decided could have arrived at it. ”
“ 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.”
“It is worth remembering that in the case of Osborn -v- Parole Board[2013] UKSC 6130 where the Supreme Court gave guidance as to how the Board should take into account that a prisoner serving an indeterminate sentence was over tariff. At para 2 (6) in a summary of its findings the Court said: ‘When dealing with cases concerning post-tariff indeterminate sentence prisoners, it should scrutinise ever more anxiously whether the level of risk is unacceptable, the longer the time the prisoner has spent in prison following the expiry of his tariff.’”