The civil law systems in some countries are based on more than one code. Public law relates to government, the French Constitution, public administration. The distinction between public law and private law has been both ever present and unwieldy in civil law as well as in common law jurisdictions. Search for other works by this author on: as the European Union (EU), the World Trade Organization (WTO), or the United Nations (UN), it appears to fit neatly. By Victoria Cromwell Head of QLTS Prep by BARBRI. The legal systems of different countries around the world typically follow either the. experiences and perceptions of the general public and in-country experts worldwide. institution, non-governmental or other civil society organisations, and.