Questione giuridica chiave
Whether the refusal to recognize A.________ as a professionally qualified representative was arbitrary under cantonal procedural law.
Decisione estratta
The cantonal court could, without arbitrariness, deny him that status because he lacked complete legal training and sufficient experience in the relevant field of administrative, environmental, and noise-protection law.
Motivazione estratta
Qualified representation must be assessed case by case according to the subject matter and the representative's training and practice. The appellant's experience in labor, corporate, and insurance matters did not establish the necessary expertise for this dispute.