Question juridique clé
Whether the public law appeal was admissible despite available cantonal nullity review for hearing, double-instance, and ultra petita complaints.
Solution extraite
These complaints were inadmissible because they could and had to be raised in the cantonal nullity appeal first.
Motifs extraits
Art. 86 OJ requires exhaustion of cantonal remedies; in Vaud, nullity review under art. 444 CPC/VD was available for essential procedural violations, including hearing rights and arbitrary evidence assessment.