Key legal question
Whether the appeal was admissible under Art. 84 BGG as a particularly important mutual legal assistance case
Extracted holding
The appeal was not admissible because no particularly important case was shown, despite the transfer of information from the confidential sphere.
Extracted reasoning
The appellants did not demonstrate any violation of elementary procedural principles or any other exceptional significance. Their criticism of the request's factual description and the proportionality assessment merely challenged the application of settled case law.