(25)As part of a coordinated action, the competent authorities concerned should coordinate their investigation and enforcement measures in order to tackle effectively the widespread infringement or widespread infringement with a Union dimension and to bring about its cessation or prohibition. To that end, all necessary evidence and information should be exchanged between the competent authorities and necessary assistance should be provided. Competent authorities concerned by the widespread infringement or widespread infringement with a Union dimension should take the necessary enforcement measures in a coordinated way in order to bring about the cessation or prohibition of that infringement.