Question juridique clé
Whether the appeal in mutual legal assistance is admissible as a particularly important case under Art. 84 BGG.
Solution extraite
No particularly important case was shown; the appeal could not be heard on the merits.
Motifs extraits
The applicant did not explain any serious prospect of success against the lower court's non-entry decision, and his arguments attacked the foreign criminal court's evidence assessment, which is inadmissible in mutual legal assistance proceedings.