Whether the entire Tribunal d'arrondissement de l'Est vaudois had to recuse itself under Art. 56 let. f CPP.
Yes. The family-linked cohabitation relationship was capable of creating an appearance of bias for any panel president.
Article 56 let. f CPP is a residual clause covering other grounds likely to cast doubt on impartiality. The close personal relationship gave rise to objective doubts, and the parties did not object.