Question juridique clé
Whether the complainant had standing to bring a public-law appeal against the refusal of an investigative measure in a criminal case under Art. 88 OJ.
Solution extraite
The complainant lacked standing because he sought to challenge only the handling of the criminal prosecution, which belongs to the public authorities; he could invoke procedural rights only in case of a formal denial of justice, not to attack the merits indirectly.
Motifs extraits
The requested bank-document order concerned an evidentiary assessment and the complainant's interest was only factual. The appeal therefore fell outside the scope of Art. 88 OJ.