Question juridique clé
Whether the appeal against the joinder order was admissible under Art. 93 LTF
Solution extraite
The challenged joinder order was an incidental decision and did not cause irreparable legal harm; the appeal was therefore inadmissible.
Motifs extraits
A joinder of criminal investigations normally does not create irreparable harm. The appellant's fear that parties in one case might access the other file and that his dignity and honor might be affected concerned factual inconveniences, not a legal injury within the meaning of Art. 93(1)(a) LTF.