Kernrechtsfrage
Whether the public-law appeal was admissible despite the immigration exception under Art. 83 lit. c no. 2 BGG.
Extrahierter Entscheid
The appeal was admissible to the extent the appellants complained that the authorities unlawfully refused to re-examine the reunification request despite alleged new facts or a material change in circumstances.
Extrahierte Begründung
A Swiss citizen may in principle have a right to family reunification with a minor child; where the complaint concerns refusal of reconsideration or revision in the face of new facts or a later change in circumstances, ordinary public-law appeal is available.