(9) The Canadian Act covers all the basic principles necessary for an adequate level of protection for natural persons, even if exceptions and limitations are also provided for in order to safeguard important public interests and to recognise certain information which exists in the public domain. The application of these standards is guaranteed by judicial remedy and by independent supervision carried out by the authorities, such as the Federal Privacy Commissioner invested with powers of investigation and intervention. Furthermore, the provisions of Canadian law regarding civil liability apply in the event of unlawful processing which is prejudicial to the persons concerned.