This Practice Note considers the issue of whether arbitral tribunals are empowered to strike out, summarily dismiss or expeditiously determine claims (or defences) in arbitration proceedings under English and Welsh law (English and England are used as shorthand throughout) principally pursuant to section 39A of the Arbitration Act 1996 (AA 1996) (as inserted by the Arbitration Act 2025), which allows a tribunal to dispose of a claim, defence or issue on a summary basis where it has no real prospect of success, and AA 1996 s 41, which includes powers exercisable in cases of inordinate and inexcusable delay/want of prosecution and where a party fails to attend an oral hearing or make written submissions, and under the arbitration rules of certain international arbitral institutions. AA 1996—early dismissal of claims Under English law, tribunals now have an express statutory power to make an award on a summary basis if a tribunal finds, on the application of a party to the proceedings (upon notice to the other party or parties), that the other party