7Court or judge may order inspection, &c.
On the application of any party to a legal proceeding a court or judge may order that such party be at liberty to inspect and take copies of any entries in a banker's book for any of the purposes of such proceedings. An order under this section may be made either with or without summoning the bank or any other party, and shall be served on the bank three clear days before the same is to be obeyed, unless the court or judge otherwise directs.