Key legal question
Whether the appeal was admissible under Art. 84 BGG as a particularly important case in mutual legal assistance.
Extracted holding
The case was not particularly important; therefore the Federal Supreme Court could not enter into the appeal.
Extracted reasoning
Although bank records from the confidential sphere were involved, the alleged hearing defect had been cured in the proceedings before the Federal Criminal Court. The appellant itself acknowledged that future practice would include the account holder earlier, so there was no risk of repeated procedural violation.