Kernrechtsfrage
Whether the constitutional complaint was admissible after the contract had already been concluded and a declaration of unlawfulness could still be sought.
Extrahierter Entscheid
The complaint remained admissible, but only a declaration of unlawfulness of the executed award could still be sought; the challenge to the administrative judgment itself was only admissible insofar as its annulment was needed.
Extrahierte Begründung
After contract signature, only the completed procurement act can still be attacked by a declaration under the Binnenmarkt Act; the cantonal appeal judgment must nevertheless be set aside if the complaint succeeds so that costs can be corrected.