European Union – Public procurement. The Court of Justice of the European Union gave a preliminary ruling in which it decided, among other things, that art 51 of Directive (EC) 2004/18, in conjunction with art 21 thereof, should be interpreted as precluding an economic operator from submitting to the contracting authority, in order to prove that it satisfied the conditions for participating in a public tender procedure, documents which had not been included in its initial bid, such as a contract performed by another entity and the undertaking of the latter to place at the disposal of that operator the capacities and resources necessary for the performance of the contract concerned after the expiry of the time limit laid down for submitting tenders for a public contract.