The clerk or judge receiving and opening the commission and return must immediately file it, with the affidavit mentioned in the last two sections, in the office of the clerk of the court in which the indictment or information is pending. If the commission and return is transmitted by mail, the clerk to whom it is addressed must receive it from the post office, and open and file it in his office, where it must remain unless otherwise directed by the court.
R.L.1910, § 6046.