law: Arbitration Act 1940
  Section 26
  Expert Appointed by Arbitral Tribunal
  (1) Unless otherwise agreed by the parties,
  
  the arbitral tribunal may -
  (a)  appoint 
  
  one or more experts to report to it on specific issues to be determined by the
  
  arbitral tribunal, and
  (b)  require 
  
  a party to give the expert any relevant information or to produce, or to
  
  provide access to, any relevant documents, goods or other property for his
  
  inspection.
  (2) Unless otherwise agreed by the parties, if
  
  a party so requests or if the arbitral tribunal considers it necessary, the
  
  expert shall, after delivery of his written