Kernrechtsfrage
Whether the complaint was admissible and the facts could be challenged.
Extrahierter Entscheid
The complaint was admissible, but factual findings could only be attacked under the strict BGG standard; the appellant failed to show any manifest error.
Extrahierte Begründung
The Federal Court applies the law ex officio but is bound by the facts unless they are manifestly incorrect or legally defective and outcome-relevant.