Kernrechtsfrage
Whether the public-law appeal against the interlocutory decisions was admissible without irreparable legal harm.
Extrahierter Entscheid
The challenged transmission and joinder decisions were interlocutory and caused no irreparable legal harm; the appeal was therefore inadmissible.
Extrahierte Begründung
A transmission order closing the preparatory investigation and forwarding the file, as well as a criminal joinder/disjoinder decision, do not end the proceedings. Any objections can be raised later before the merits court or again in later proceedings, so only legal harm incapable of later repair would justify immediate review.