Advocate-General Colomer recently gave an opinion (in joined cases C-147/06 & 148/06) on whether the contracting authorities have a duty to make enquiries upon receipt of an abnormally low tender (as required under the public procurement directive) even in the case of a tender falling below the directive's value thresholds. The issue came before the European Court of Justice by way of a reference from an Italian court. The Advocate-General concluded that in his opinion, a national law requiring a contracting authority to automatically reject an abnormal bid in these circumstances would be contrary to EU law. However, it is up to Member States how they implement the principles of effectiveness and equal treatment that underlie the requirement for contracting authorities to verify the position before rejecting an abnormally low bid.