Can A Universal Code Of Ethics Be Made National Law?

We often disagree on religion, culture, and language, but human beings can all agree that they don't want to be mistreated. Right treatment of others is not a religious theology, but a way of life. It'd we all agree on this Universal Code Of Ethics, as collectively formulated by our listeners, will that make it easier to identify when someone has violated the code of ethics and is guilty of wrong behavior? If all people are held to the same standard, will it be easier to get rid of public servants who are guilty of crimes?  Should a universal code of ethics include laws that govern sexuality? Is sexual behavior something that should be governed by law? If we all willingly agree to live by a universal code of ethics can we abolish all law enforcement agencies and live in a police-free society?