Kernrechtsfrage
Whether the administrative appeal against the final mutual assistance order was admissible and the appellant had standing.
Extrahierter Entscheid
The appeal was admissible; X. was directly affected as account holder and could challenge the final and prior interim orders.
Extrahierte Begründung
Final orders of the executing federal authority are appealable under the IRSG, and a person directly affected by the seizure of account documents is entitled to appeal.