607A.30  Time of drawing.
  In counties using an ex officio jury commission, the required number of jurors shall be drawn by the commission, or a majority of its members, at the office of the clerk at a time agreed to by the commissioners.
  In counties using a jury manager, the manager shall arrange for the selection of the required number of jurors at a time and place chosen by the manager.
  The chief judge of the judicial district may by order prescribe the time for the drawing by the ex officio commission or the manager.
  The jurors thus selected constitute the jury pool and shall be notified by the clerk or jury manager by regular mail when called.
86 Acts, ch 1108, §38