Article 228

The court shall summon the witnesses to be heard.

The summons shall state the date, time and place of the examination, the facts in respect of which evidence is to be provided and the consequences of non-appearance.

The summons shall be served a sufficient time before the time specified in the summons for the attendance of the witness, to allow him a reasonable time for preparation and travelling to the place at which his attendance is required.

If a party has produced more witnesses than is reasonably required, the court may take such circumstances into account when awarding costs.