Question juridique clé
Whether the alleged miscalculation of pre-trial detention credit could be raised directly before the Federal Supreme Court
Solution extraite
The grievance was inadmissible because it concerned a calculable factual error that had first to be corrected through the procedure under Art. 83 CPP, and cantonal remedies had not been exhausted.
Motifs extraits
The dispute was not about interpreting Art. 51 CP but about a calculation of days. Any manifest counting error had to be corrected by the dedicated cantonal remedy before federal review.