Kernrechtsfrage
Whether the late-filed migration documents were admissible as new evidence on federal appeal.
Extrahierter Entscheid
The documents were inadmissible novelties because they could have been filed in the cantonal proceedings.
Extrahierte Begründung
Under Art. 99(1) BGG, evidence is admissible only if the lower-court decision itself gives rise to it; that was not the case here.