Kernrechtsfrage
Whether the award was tainted by impermissible prior involvement because the head of the drafting committee worked for the successful bidder.
Extrahierter Entscheid
The appearance of unequal treatment was sufficient to undermine fair competition; participation in drafting the tender documents by an employee of the winning firm was incompatible with equal treatment.
Extrahierte Begründung
A bidder who helped prepare the project or tender documents gains a knowledge advantage and creates at least the appearance that not all bidders were on equal terms; actual advantage need not be proven.