1031. Validity of proceedings tried and decided on the merits
Whenever it appears by any conviction or order made by a magistrate that a defendant appeared at the trial and pleaded to the charge and the case was tried on its merits, if the defendant has not appealed against the conviction, or order, where an appeal is allowed, such conviction or order shall not afterwards be set aside or vacated on account of any defect of form.
Rejection or Admission of Evidence