Key legal question
Whether the appeal in mutual legal assistance proceedings was admissible under Art. 84 BGG as a particularly significant case.
Extracted holding
The case was not particularly significant; although bank records from the confidential sphere were involved, no fundamental legal issue, serious procedural defect, or exceptional importance was shown.
Extracted reasoning
Art. 84 BGG restricts access to the Supreme Court in mutual legal assistance matters. The lower court adequately addressed the disputed prerequisites and proportionality; no violation of the right to be heard was apparent; the matter lacked exceptional significance.