Question juridique clé
Whether the cantonal court could grant file access before the first questioning of persons called to give information.
Solution extraite
Persons called to give information are not automatically entitled to consult the file before their first questioning; mere summons does not amount to the direct, immediate and personal interference required by Art. 105(2) CPP.
Motifs extraits
The exception in Art. 105(2) CPP is narrow and applies only to direct rights infringement. A summons for questioning is inherent in that status and does not itself justify party rights. Otherwise the exception would become the rule.