Law is a legal system that provides rules and standards for how citizens can live. These rules are usually made by a government.
Typically, these laws are public and set out in the U.S. Constitution, state statutes, and local ordinances. If they are found to be unconstitutional, a court will overrule them and declare them invalid.
The Moral Justification of Rights
The moral justification of a legal right is not self-evident, but it is usually thought to be supported by a range of principles. These may include considerations of utility, policy, or the common good.