Is an immediate appeal admissible against a prosecutor's joinder order under the CPP?
Yes. A decision ordering joinder or severance of criminal proceedings is immediately appealable, and the appeal here was timely and filed by a party with standing.
The court relied on Arts. 393 ff. CPP, in particular the appealability of joinder orders and the appellant's standing under Art. 382 CPP, and found the filing timely under Art. 396 para. 1 CPP.