Kernrechtsfrage
Whether the contracting authority used the correct procurement procedure under the SubG.
Extrahierter Entscheid
No. Given the amount of the bids, the authority had to use the open or selective procedure; the invitation procedure was unlawful.
Extrahierte Begründung
The project fell within the construction sector, with thresholds of CHF 500,000 for open/selective procedures and CHF 300,000 for the invitation procedure. The bids ranged from CHF 1.7 million to CHF 2.3 million. Once the higher thresholds were exceeded, the authority had no discretion to choose the lower procedure. Selecting the invitation procedure was a serious legal defect.