Key legal question
Whether the complainant was entitled to challenge the discontinuance decision and the expert-based reasoning.
Extracted holding
The complainant was not entitled under Art. 88 OG to attack the merits as such, but as an injured person under the OHG he could challenge the decision insofar as it affected his civil claims.
Extracted reasoning
The court distinguished between impermissible attacks on the assessment of evidence and admissible complaints about procedural rights and civil-claim-related review.