At the+public+administration+it is+radically+precluded+the+possibility+of+use+of the arbitration+irrital+to the+fine+of the+resolution+of+controversies+deriving+from+contracts+conclusions+with+private,+since+in this way+the+composition+of the+dispute+would be+ ad+being+entrusted+to+subjects (the+referees+irritation)+identified,+in the area+one+one+legitimate+logic+negotiation,+in+defect+any+procedure+legally+determined+and, therefore,+without+adequate+guarantees+transparency+and+advertising+of the+choice.