LAW, itself, is a social science which expresses society's organized planning and self-regulation. It is the system of rules by which a community or series of communities determines (1) the conduct. rights, and powers of its members, (2) its own actions for the members' benefit, and (3) its permissible interference with the freedom of these same members. Any rule answering this description is, if authoritatively promulgated, a law. The term public health law requires more precise analysis and definition. A generally accepted definition of modern public health itself is that given by Dr. C.-E. A. Winslow who stated: