(1) An expert witness may apply in writing to the court for directions to assist him or her in carrying out his or her functions and duty to the court as an expert witness.
(2) An expert witness who applies for directions under paragraph (1) need not give notice of the application to any party.
(3) The court may direct that —
(a) notice of an application under paragraph (1) be given to any party; or
(b) a copy of the application and any directions given be sent to any party.