Key legal question
Whether the appeal met the admissibility threshold of a particularly important case under Art. 84 LTF.
Extracted holding
The case was not particularly important; no admissibility ground justified review by the Federal Supreme Court.
Extracted reasoning
The requested transfer concerned secret banking documents, but the scope was limited and the Belgian investigation concerned fraud and corruption. The appellants did not show incontestable evidence of grave foreign procedural defects or a question of principle.