Question juridique clé
Whether the public-law appeal against the cantonal decision declaring the appeal inadmissible was itself admissible despite the interlocutory nature of the expert-evidence order.
Solution extraite
The decision concerned evidence administration and was interlocutory; admissibility would require irreparable legal harm, which was not shown.
Motifs extraits
Such decisions are generally challengeable only with the final judgment; the appellant did not establish a qualifying irreparable prejudice.