(1) Where an application for exclusion or challenge is filed, exclusion or challenge shall be decided through a trial.
(2) No judge against whom an application for exclusion or challenge is filed shall participate in a trial related to such exclusion or challenge: Provided, That he or she may state his or her opinion.
(3) All decisions made under paragraph (1) shall be in writing, and grounds for such decision shall be stated therein.
(4) No person shall appeal a decision under paragraph (1).