Question juridique clé
Whether the new documents filed before the Federal Supreme Court were admissible.
Solution extraite
The documents were inadmissible because the appellants could and should have submitted them already in the cantonal appeal proceedings; the appellate judgment did not newly prompt them.
Motifs extraits
Under Art. 99(1) BGG, new facts and evidence are allowed only if the lower-court decision itself gives rise to them. That condition was not met.