23.7—(1) A copy of the application notice—
(a)must be served as soon as practicable after it is filed; and
(b)except where another time limit is specified in these Rules or a practice direction, must in any event be served at least 3 days before the court is to deal with the application.
(2) If a copy of the application notice is to be served by the court, the applicant must, when he files the application notice, file a copy of any written evidence in support.
(3) When a copy of an application notice is served it must be accompanied by—
(a)a copy of any written evidence in support; and
(b)a copy of any draft order which the applicant has attached to his application.
(4) If—
(a)an application notice is served; but
(b)the period of notice is shorter than the period required by these Rules or a practice direction,
the court may direct that, in the circumstances of the case, sufficient notice has been given and hear the application.
(5) This rule does not require written evidence—
(a)to be filed if it has already been filed; or
(b)to be served on a party on whom it has already been served.
(Part 6 contains the general rules about service of documents including who must serve a copy of the application notice)