Question juridique clé
Whether the nullity appeal was admissible against the cantonal remand order
Solution extraite
No. The challenged decision was an interlocutory procedural ruling that did not finally decide a federal law question and therefore could not be attacked by nullity appeal.
Motifs extraits
Nullity appeal under former PPF lies only against final cantonal judgments, or interlocutory decisions that definitively settle a federal-law issue. The remand order merely advanced the proceedings and addressed only cantonal procedural questions.