In the concessions of public services to the judge ordinary it is up to judging on the inherent issues to fulfillment o to the non -fulfillment of the concession, and on the relative effects and consequences, even of nature compensation, with investigation direct to determination of the rights Nistration and of the dealer, as well as of evaluate, in via incidental, the legitimacy of the administrative acts accidents on determination of the fee. with the consequence that the disputes belonging to the jurisdiction of the judge ordinary can be compromise arbitration ritual.