Question juridique clé
Whether new factual allegations and new documents were admissible in the public-law appeal
Solution extraite
They were inadmissible because the appeal was cassatory and new facts/documents could not be introduced after remand and without cantonally permissible nova.
Motifs extraits
The Federal Court held that the cantonal court had to comply with the remand ruling, while admissibility of nova depended on cantonal law; the appellant failed to show any such basis. New allegations and a later London judgment were therefore disregarded.