Question juridique clé
Whether the federal complaint could challenge constitutional rights and the first-instance decision.
Solution extraite
Only the cantonal appellate supervisory decision was reviewable; constitutional complaints were not cognizable in this procedure, and new factual assertions were disregarded.
Motifs extraits
Under the applicable procedure, review was limited to violations of federal law; constitutional grievances belonged in a different remedy, and the complaint could not expand the facts without proper basis.