Questione giuridica chiave
Whether the cantonal ruling refusing most evidence requests was immediately appealable by public-law appeal.
Decisione estratta
The decision was interlocutory and, under Art. 87 OG, was appealable only if it caused irreparable legal harm, which was not shown.
Motivazione estratta
Refusal of evidence usually causes only factual disadvantages such as delay or higher costs; such consequences are not irreparable legal prejudice.