Questione giuridica chiave
Whether the applicants' recusal request based on prior participation of court members was admissible.
Decisione estratta
Prior participation in an earlier proceeding is not a ground for recusal under Art. 34(2) BGG, so the request could not be entertained.
Motivazione estratta
The applicants relied on Art. 34(2) BGG, but that provision expressly excludes earlier participation as a recusal ground.