Paragraph 14 Attendance of witnesses

Any party to a reference under an arbitration agreement may sue out a writ of subpoena ad testificandum, or a writ of subpoena duces tecum, but no person shall be compelled under any such writ to produce any document which he could not be compelled to produce on the trial of an action:

Provided that no writ shall issue under this section unless the arbitrator has entered on the reference or has been called on to act by notice in writing from a party to the reference and has agreed to do so.