Question juridique clé
Whether the appeal against the cantonal inadmissibility decision and the severance order was admissible under Art. 93 LTF.
Solution extraite
The decision was incidental and X. failed to show any irreparable legal prejudice; the appeal was therefore inadmissible.
Motifs extraits
The challenged ruling did not end the criminal proceedings. No exception for formal denial of justice applied because the cantonal court also addressed the merits. Mere prolongation of proceedings or higher costs is not irreparable harm.