Questione giuridica chiave
Admissibility of the federal appeal against the cantonal ruling on appointment of an expert
Decisione estratta
The appeal is inadmissible because the cantonal ruling does not decide formal grounds for challenge of the expert and therefore is not an appealable incidental decision in this respect.
Motivazione estratta
Under Art. 92 ff. and Art. 93 LTF, only certain incidental decisions may be challenged immediately. No formal recusal grounds were decided here.