Uniform Civil Procedure Rules 2005
Current version for 9 April 2020 to date (accessed 4 June 2020 at 06:02)
31.39   Parties’ single expert may apply to court for directions
(1)  The parties’ single expert may apply to the court for directions to assist the expert in the performance of the expert’s functions in any respect.
(2)  Any such application must be made by sending a written request for directions to the court, specifying the matter in relation to which directions are sought.
(3)  A parties’ single expert who makes such an application must send a copy of the request to the parties affected.