The 'Case Koldo' is a corruption scandal involving the Ministry of Transport, Directorate-General of Roads, Adif, several construction companies and the PSOE.
There's a concern about the persistence of such criminal behaviours, despite their identification in the past.
The political system lacks effective preventive controls. And the deterrence from punishment is not enough.
Absolute and real-time transparency is needed in contracting processes, reduction of subjectivity in awards, and protection of independent officials from politicians.
The EU points out that Spain does not have a comprehensive strategy against corruption, nor specialized public agencies, and controls are reduced, not increased.
Conclusion: The fight against corruption should be an integral part of the system structure and not merely depend on whistleblowers or betrayal among the corrupt.