Question juridique clé
Whether the complaint against the mutual legal assistance decision was admissible under Art. 84 BGG despite the absence of a substantiated special-significance case.
Solution extraite
The complaint was inadmissible because the appellant did not explain, and it was not apparent, why the case met the special-significance requirement of Art. 84 BGG.
Motifs extraits
In mutual legal assistance matters, federal review is available only if the decision concerns information from the secret sphere and the case is particularly significant. Where admissibility depends on that requirement, the appellant must substantiate it under Art. 42(2) BGG. This was not done here.