Key legal question
Whether the Federal Court appeal against the TPF's inadmissibility ruling was itself admissible under Art. 84 and 93 LTF.
Extracted holding
The appeal was not admissible because the challenged measures were incidental and did not concern direct transmission of secret information; no particularly important case was shown.
Extracted reasoning
The authorization for foreign officials to attend the hearing and consult the file was only an interim step within the mutual assistance procedure. The safeguards under Art. 65a EIMP prevented premature use of information, and the situation did not resemble cases where an immediate appeal is justified due to direct transmission effects.