“…gs were summarised by this Court (comprising Bean LJ, Sir Keith Lindblom SPT and Sir Stephen Irwin) in R (United Trade Action Group Ltd) v Transport for London [2021] EWCA Civ 1197, [2022] RTR 2, at para. 125. The authorities, many of which were cited to us also, include R v Westminster City Council, ex parte Ermakov [1996] 2 All ER 302; …”
“… evidence put forward after the event to explain or justify that decision (see R. (on the application of United Trade Action Group Ltd.) v Transport for London [2021] EWCA Civ 1197). It is trite, for example, that later evidence of a decision-maker’s thinking cannot be used to contradict the original reasons given or to provide wholly new…”