Extraordinary developments in the Supreme Court yesterday (March 21) as the court, for the first time in its history, conducted a secret hearing during which one of the parties, an Iranian Bank, was not allowed to take part. Full background to the case, Bank Mellat (Appellant) v HM Treasury (Respondent) is here.

If I could just repeat that for effect: the Government, which is being sued, gets to stay in court whilst the person doing the suing – and their lawyers – have to leave. The judges then hear security sensitive evidence which is potentially central to the case. Whilst one side is absent. No wonder Lord Neuberger, who as Master of the Rolls robustly blocked an attempt to introduce closed material procedures in civil trials via the back door (see his judgment in Al Rawi e.g. at para 30), sounds so pained in his statement. Curiously, this final hard-hitting paragraph was sent by the Court to its public email list but was left off the statement published on the Court’s website: