Whether the entire Lausanne district criminal court had to be recused under Art. 56 let. f CPP.
Yes. The fact that X.________'s sister works as an employee at the court created an appearance of bias sufficient to justify recusal.
Under Art. 56 let. f CPP, recusal is required when other circumstances objectively give rise to doubts about impartiality. A family relationship through a court employee can create such an appearance, and neither the prosecutor nor the defendants opposed the request.