[2012] UKPC 38
It would only be in an exceptional case that the Judicial Committee of the Privy Council would entertain an argument, not put forward at trial or on appeal against conviction, that an appellant had not been fit to stand trial because he was of low intelligence. It would only entertain such an argument if the evidence pointed very clearly to there having been a miscarriage of justice.
PC (Trin) (Lord Hope, Lord Wilson, Lord Carnwath)
08/11/2012