Question juridique clé
Whether the cantonal court violated the right to be heard by providing insufficient reasoning and refusing witness evidence on the applicability of the Service Employment and Leasing Act.
Solution extraite
Yes. The cantonal judgment did not adequately address the parties' arguments and evidence requests on a difficult and central legal question.
Motifs extraits
Because the authorization issue was raised only in the appeal proceedings, was technically complex, and could lead to nullity of the contract, the lower court had to give a detailed, case-specific motivation and could not merely endorse one party's view. The requested witness hearing was relevant and the defect could not be cured before the Federal Supreme Court.