Questão jurídica principal
Whether the cantonal decision appointing an expert was an appealable decision rather than a mere administrative act.
Decisão extraída
The appointment of a named expert, coupled with procedural directions and cost consequences for the owners, produced legal effects on their procedural position and was therefore a decision.
Fundamentação extraída
Under cantonal law analogous to Art. 5 PA, a measure has decision character if it is based on public law and determines rights or obligations in a concrete case. The challenged act was not merely organizational: it designated the expert, required him to hear the parties, and fixed fee rules that could burden the owners, including partially even if they succeeded.