Kernrechtsfrage
Whether the appellant was denied access to relevant parts of the mutual assistance file.
Extrahierter Entscheid
The appellant had sufficient access to the relevant facts and could understand the basis of the request; no violation of the right to be heard occurred.
Extrahierte Begründung
The withheld material did not prevent comprehension of the request. The appellant received the passages concerning it and the closure decision summarized the essential facts.