Section 25. Any grand or trial juror from whom the office of jury commissioner has not received a duly completed and signed juror confirmation form by the eighth week preceding the term of service for which the juror was summoned shall be summoned a second time. The second summons shall have the same content and form as the first summons, except the words ''Second summons'' shall appear prominently on the face of the summons. The second summons shall be sent by first-class mail, registered mail, or served by a sheriff or constable. A juror confirmation form and questionnaire shall be enclosed with the second summons. Any juror who receives a second summons shall return a duly completed and signed juror confirmation form within five days of its receipt.