What margin does the hiring table have to interpret the criteria?
The hiring table is like the awkward referee of the public tender: it is there to review the offers and decide who takes the contract, but it cannot do whatever you want. Yes, you have to interpret the criteria that come in the specifications, but eye, your margin to invent is minimal because the entire roll is very tied by the principles of equality, transparency, and that "non -discrimination" that sounds very beautiful but sometimes seems science fiction.
The Public Sector Contract Law, in Spain at least, leaves no room for trouble: the criteria have to be clear, without trap or cardboard, and measurable enough so that nobody then is crying because they made the mess. The hiring table cannot twist those criteria or turn them around to benefit their cousin, much less. If the specifications say "experience", they cannot come to cut and say that only experience in submarine projects is only worth it if that was not written from the beginning.
When you have to score the offers, the table cannot get criteria from the sleeve or reinterpret your whit. Nothing to get creative. And if any criteria is so badly written that no one understands it (something that happens more than it should), they have to ask the hiring body to clarify the matter. But be careful, those clarifications cannot, or with Vaseline, change what was already established in the papers.
The entire film of how they have valued offers has to be in writing in a public report. Thus, if a bidder thinks that they have made "the bed", he can protest with foundation and not only with the typical kick.
In summary, the hiring table can interpret the fair and necessary, no excess. His work is to apply the criteria as they come, without inventing, so that everyone has the same opportunities. So if you are going to introduce yourself to a tender, you better read the specifications well and do not expect miracles from the table. Trust your offer, not that you are going to reinterpret it in your favor.