Key legal question
Whether X. had standing to appeal the Geneva chamber's refusal to enter a non-lieu instead of a classifying order.
Extracted holding
An accused has a legally protected interest in obtaining a non-lieu rather than a classement, because a non-lieu has more favorable effects than a mere classification.
Extracted reasoning
A non-lieu ends the prosecution in principle definitively, limits renewed prosecution to new charges, and may support compensation; therefore the accused may challenge a refusal to issue it.