translate English to French: For 25 years that sui generis system had never presented negative and unfair consequences; no complaints had been received by the government from the meteorological or scientific sectors of the society concerning this particular kind of protection.
En 25 ans, ce système sui generis n'a jamais eu de conséquence négative ou injuste; le gouvernement n'a reçu aucune plainte des milieux météorologiques ou scientifiques à propos de ce type particulier de protection.