Question juridique clé
Whether constitutional and Convention-based complaints not raised in the cantonal nullity appeal were admissible before the Federal Tribunal.
Solution extraite
They were inadmissible because they had not been validly raised before the last cantonal instance and the cantonal court did not have free review ex officio.
Motifs extraits
Public-law appeal requires exhaustion of cantonal remedies; where the cantonal court only examines the grounds raised, new procedural grievances and similar complaints cannot be introduced for the first time before the Federal Tribunal.