Whether the appeal against refusal to order a psychiatric expert report was admissible under Article 394(b) CCP.
The refusal of an expert report could be challenged again before the first-instance court and did not concern disappearing evidence; the appeal was therefore inadmissible.
Decisions on evidence are generally not immediately appealable because they cause no irreparable legal harm. An exception exists for evidence likely to disappear or decisive facts still unresolved, but a psychiatric expertise is not such evidence and can be requested again later without prejudice.