Article 40

Where a witness is required to attend before the Court to give oral evidence or to produce any document in his possession or power, the proper officer of the Court shall issue a summons ordering the attendance of the witness, which shall be served personally on him a reasonable time before he is required to attend, and there shall at the same time be paid or tendered to the witness a sum sufficient to cover his reasonable expenses for travelling to and from, and his attendance at, the Court.