Translate the following English sentence to French:
"The protection of the interests of third parties justifies a high degree of intervention by the public authorities, which leads, amongst other things, to very great powers which provide the authorities with information about the internal affairs of companies."
La protection des intérêts de tiers justifie une plus grande intervention des pouvoirs publics qui se traduit notamment par des moyens exorbitants qui permettent aux autorités de connaître le fonctionnement interne des entreprises.