(1) A judicial authority before which an action is brought in a matter which is the subject of an arbitration agreement shall, if a party so applies not later than when submitting his first statement on the substance of the dispute, refer the parties to arbitration.
(2) The application referred to in sub-section (1) shall not be entertained unless it is accompanied by the original arbitration agreement or a duly certified copy thereof.
(3) Notwithstanding that an application has been made under sub-section (1) and that the issue is pending before the judicial authority, an arbitration may be commenced or continued and an arbitral award made.