(705 ILCS 310/12) (from Ch. 78, par. 35)
    Sec. 12. No objection, exception or challenge to any petit juror or grand juror or to any panel or petit or grand jurors shall be allowed at any time because of any failure to comply with the provisions of this act or of the said rules, unless the party urging the same shall show to the court that actual and substantial injustice has resulted or will result to him, because of the error or defect charged.
(Source: Laws 1931, p. 655.)