Serious irregularity: removal of arbitrator

The judgment of Andrew Baker J in RJ and Another v HB [2018] EWHC 2833 (Comm) discusses two important consequences of a finding by a court that there has been serious irregularity by the arbitrator contrary to section 68 of the Arbitration Act 1996: what is the appropriate remedy; and is it permissible for the arbitrator to be removed in the absence of an application for removal under section 24 of the 1996 Act?

RJ v HB : the facts