Law is a body of rules that commands what is right and forbids what is wrong, and that can be enforced by a controlling authority. This authority can be a group of people (a government or a corporation), an individual, or a court. Laws are used to punish bad behavior by ordering fines or sending someone to jail. Laws are also used to help prevent crimes, such as murder or robbery.
The concept of Law is fundamental to international peace and security; political stability; economic development; and human rights. A strong rule of law is essential to the protection of people from human rights abuses, including discrimination, violence and threats to personal safety; preventing and addressing displacement and statelessness; and the delivery of services and other vital support for vulnerable populations.
Law is also the study of legal systems and how laws work, as well as the profession of being a lawyer or judge. It is a broad field, covering everything from the structure of courts to the way criminal cases are handled to how governments handle land reform and social justice issues.
A bill is a formal legislative proposal, usually one that will change or add to existing laws. In the United States, bills are known as Public Laws and are numbered in the order that they are introduced in Congress (H.R. — House of Representatives; S. — Senate). If the President agrees with the bill, it will be signed into law and printed in the Statutes at Large. If the President disagrees, he or she may choose not to sign it into law, which is called a veto. In that case, the bill will be sent back to Congress and must be overturned with a two-thirds majority vote of both the House and Senate.