The Civil Procedure Rules 1998

When discontinuance takes effect where permission of the court is not neededE+W

38.5—(1) Discontinuance against any defendant takes effect on the date when notice of discontinuance is served on [F1them] under rule 38.3(1).

(2) Subject to rule 38.4, the [F2claim is] brought to an end as against [F3that defendant] on that date.

(3) However, this does not affect proceedings to deal with any question of costs.