Question juridique clé
Whether the applicants' recusal request based on prior participation of court members was admissible.
Solution extraite
Prior participation in an earlier proceeding is not a ground for recusal under Art. 34(2) BGG, so the request could not be entertained.
Motifs extraits
The applicants relied on Art. 34(2) BGG, but that provision expressly excludes earlier participation as a recusal ground.