Question juridique clé
Whether the appeal in international mutual legal assistance was admissible under Art. 84 BGG as a particularly significant case involving secret-domain information.
Solution extraite
The case was not particularly significant; no grounds suggested violations of fundamental procedural principles or serious defects in the German proceedings, so the appeal was inadmissible.
Motifs extraits
Art. 84 BGG restricts access to the Federal Supreme Court in mutual assistance matters. The lower court addressed the essential objections, relied on settled case law, and no question of principle or exceptional importance arose.