Key legal question
Whether the complainant had standing to challenge the cantonal ruling before the Federal Supreme Court
Extracted holding
The complainant could invoke a denial of justice in being deprived of a cantonal remedy, but could not challenge the merits of the criminal case.
Extracted reasoning
A criminal complaint party may appeal when it alleges violation of procedural rights amounting to a formal denial of justice; merits arguments are inadmissible at this stage.