Name : LAW ORLE BOYPrinciple Legality vs Law custom:Existence Law custom in Regulation Legislation IndonesiaIndonesia is country pluralism, Where there is various ethnic groups scattered in Indonesia. tribes the of course there are rules or that normal called with law custom they each. Law it lives and is obeyed within public custom Which spread in Indonesia. Even not seldom from they are more obedient to customary law than the law made by government, whereas in Article 1 Paragraph (1) Book Constitution The Criminal Code states: “ Nothing something deed Which can convicted other than based on the strength of the provisions legislation criminal Which ahead of him."Andi Hamzah in the book give a number of conclusions that can be drawn from chapter the. First, If something order nor prohibition want to made into something that can forced And can threatened with a criminal, then a ban or the command must be included in the law act criminal. Second, law the No can apply recede (Hamzah, 2008: 40).So How with position law custom? is law custom tie or No? And which law he chose when someone has to