Questão jurídica principal
Whether the administrative appeal against the cantonal remittal decision was admissible.
Decisão extraída
Yes. A remittal decision deciding a fundamental issue and binding the lower authority is treated as an appealable partial final decision.
Fundamentação extraída
The cantonal court’s ruling resolved the existence of a right to family reunification and contained a binding instruction to the migration office, so it was reviewable by administrative appeal.