The investigation related to the Koldo case seeks to clarify possible bribery in public works and has focused on a 20% increase in the budget of three projects awarded by Adif to Acciona. A change was made that violated regulations, raising the cost before the work commenced. The General Investigation of the State Administration has sent a report to the judge of the National Court, Ismael Moreno, in which eleven public works contracts examined are part of a separate piece of the Koldo case, and which also reveals a 20% increase in projects commissioned by the Directorate General of Roads. The judge included in this case the former president of ADIF, Isabel Pardo de Vera, and the former director general of Roads, Javier Herrero, as well as businessmen and former public officials who were being investigated in the Supreme Court, such as former minister José Luis Ábalos, his former advisor Koldo García, and former socialist leader Santos Cerdán. Fourteen people were investigated. Of the eleven works analysed by the IGAE in its report, five are related to contracts awarded by ADIF and six by the Directorate General of Roads. Among these works is the construction project for the stays of the Centenario Bridge in Seville, as well as road works on highways in provinces such as Teruel, Córdoba, and a section of the A-12 motorway of the Way of St James that connects La Rioja and Burgos; the construction of a platform for the Mediterranean corridor between Murcia and Almería, or the underground railway network in the city of Murcia.