Question juridique clé
Whether the refusal to order a technical expert opinion was immediately appealable to the Federal Supreme Court
Solution extraite
The appeal was not immediately admissible because the challenged interlocutory decision did not cause irreparable legal harm.
Motifs extraits
The petitioner could renew his evidence request before the trial court and, if necessary, challenge any later rejection in an appeal against a final conviction. No exceptional risk of loss of evidence or comparable irreversible legal prejudice was shown.