A principle that no person or government official can legally perform an act that tends to injure the public.
Public policy manifests the common sense and common conscience of the citizens as a whole that extends throughout the state and is applied to matters of public health, safety, and welfare. It is general, well-settled public opinion relating to the duties of citizens to their fellow citizens. It imports something that fluctuates with the changing economic needs, social customs, and moral aspirations of the people. Public policy enters into, and influences, the enactment, execution, and interpretation of legislation.
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Prohibition Party to Pure theory of law