Have the person that mailed the Demand for a Trial de Novo fill out an Affidavit of Service for the Demand and sign it in front of a notary. Make payment to the Clerk of the. Court.Request for Trial De Novo. Form: PDF icon ARBITRATION Request for Trial DE NOVO.pdf. Presiding Justice Mikva and Justice Harris concurred in the judgment. ORDER. Review 302.535 Trial De Novo. We review the summary dismissal of a postconviction petition de novo. ¶ 26 In any event, our de novo review makes clear that the trial court did not err. Because plaintiff argued in its motion to reconsider that the trial court erred in its application of existing law, we review de novo the order. Our review of a trial court's decision on a question of law is de novo.