Kernrechtsfrage
Whether the constitutional complaint was admissible against the federal-contribution part and against the remand order
Extrahierter Entscheid
The complaint was inadmissible insofar as it concerned the federal social insurance contributions and the remand order; it was admissible only for the cantonal FAK claim.
Extrahierte Begründung
A subsidiary constitutional complaint is excluded where the matter can be raised by another federal remedy. The remand on the AHV basis was an interlocutory decision without shown irreparable harm. The FAK claim was a separate cantonal-law subject despite the reference to federal rules through cantonal incorporation.