123. Serving a witness summons
(1) A witness summons must be served personally on the addressee by the party on whose behalf it is issued and the issuing party must serve a copy of a witness summons on each other party to the proceedings as soon as practicable after the summons has been served on the addressee.
(2) Unless a rule or a relevant practice direction provides otherwise, a witness summons is binding if it is served in accordance with the relevant practice direction.
(3) A witness summons which is served in accordance with these Rules and requires the witness to attend Court, an inferior court, a tribunal or a panel to give evidence is binding until the conclusion of the hearing at which the attending of the witness is required.