607A.33  Details of drawing.
  1.  In counties using an ex officio jury commission, at the time of drawing the appropriate ballot box shall first be thoroughly shaken in the presence of the commissioners attending the drawing. Next, the seal on the opening of the box shall be broken in the presence of the commissioners. A commissioner shall then, without looking at the ballots, successively draw the required number of names from the box, and successively pass the ballots to another commissioner, who shall open the ballots as they are drawn, and read aloud the names on the ballots, and enter the names in writing on the appropriate list.
  2.  In counties using a jury manager, a computerized program for the random selection and printing of the names may be used to draw the required number of jurors needed.
86 Acts, ch 1108, §41