The Ombudsman recalls that part of the purpose of a call is to enable potential bidders to decide whether or not to apply. A condition that is particularly restrictive is obviously likely to limit the number of bidders. If the evaluation committee concerned subsequently interprets that condition widely, even contrary to its obvious meaning, it not only discriminates against those who, for the above reason, did not apply, but also distorts the aim of ensuring the widest possible competition. In addition, the contracting authority exposes itself to potential accusations of deliberately issuing a call with a particularly narrow condition for the purpose of limiting the number of bidders and, additionally, possibly doing so with a view to favouring one or a limited number of known bidders who are expected to respond to the call.