Question juridique clé
Whether the complainant had standing to bring a public-law appeal against the refusal of evidence in the criminal investigation.
Solution extraite
He lacked standing because he was not proceeding as a victim with protected civil claims at stake; he could invoke only formal procedural rights, not matters inseparable from the merits.
Motifs extraits
Under Art. 88 OJ, a mere injured complainant generally has no legally protected interest in compelling prosecution or investigative measures. In any event, a challenge to the refusal of evidence based on anticipatory assessment attacks the merits indirectly and is therefore not reviewable by public-law appeal.