I don't think your worry should touch on the originality of your domestic statute (your privacy act). What is most important is wether this particular legislation meets up with standards provided by international law in protecting of privacy . For instance the Universal Declaration of Human Rights, The African Charter on Human rights, The International Covenant on Civil and Political Rights, The European Convention for the protection of human Rights and Fundamental Freedoms etc.. It is equally very important to note that no domestic legislation on rights protection exist in "limbo" ; inspiration must be drawn from some where , but what matters most is ; principles governing that statue must not fall short of universally accepted international standards.