Kernrechtsfrage
Whether refusal of access to the investigation file was immediately appealable.
Extrahierter Entscheid
The complaint on file inspection was inadmissible because the refusal caused no irreparable disadvantage under Art. 93 BGG.
Extrahierte Begründung
A standalone appeal against this interim decision was unavailable; the asserted violation of cantonal criminal procedure law was not a valid federal ground.