Question juridique clé
Whether the Federal Prosecutor's interlocutory order compelling testimony in mutual legal assistance proceedings was separately appealable.
Solution extraite
The order was not separately appealable because it did not fall within the exhaustive categories of Art. 80e lit. b IRSG and caused no directly irreparable harm recognized by that provision.
Motifs extraits
Only interlocutory decisions causing irreparable harm in the specific situations listed by Art. 80e lit. b IRSG may be challenged separately; this case involved neither seizure of assets nor the presence of persons involved in the foreign proceedings.