Key legal question
Whether the appeal against the cantonal decision refusing evidence and closing the investigation was admissible despite being incidental.
Extracted holding
No admissibility was shown because the refusal of evidence and counter-expertise could still be revisited later and caused no irreparable legal harm.
Extracted reasoning
Under Art. 93(1)(a) BGG, irreparable harm must be legal and not repairable by a later final decision; that was not the case here.