Question juridique clé
Whether the cantonal appeal judges lacked impartiality under Articles 29 and 30 Cst.
Solution extraite
No objective or subjective bias of the judges was shown; the criticism actually targeted witness credibility, not judicial impartiality.
Motifs extraits
The appellant alleged only dissatisfaction with the evaluation of evidence. No concrete facts indicated personal bias, prior involvement, or external influence affecting the court.