Questione giuridica chiave
Whether the cantonal judge was disqualified due to prior involvement in the related case against B.X.________
Decisione estratta
The challenge was raised too late because A.X.________ knew of the judge's prior participation when he received the related criminal judgment on 2012-03-26 but did not seek recusal promptly.
Motivazione estratta
A recusal request must be made without delay after knowledge of the ground. The appellant waited about six weeks, so the objection was forfeited.