Rules and Laws - What's the difference?

A rule is...something that a group of people have to follow and is not enforced  by police or government but maybe by a  group of people. Rules are just something that you have to stick to but cannot get prosecuted by not doing so.

A law is... a legal title that you must obey. Laws are enforced by the police and government. 

If drunk driving was never a law millions of people around the world would die. The world would be to dangerous to live in.