 Among three major sources of law, which are legislation, customary law and general principles of law, the primary source of law in Belgium is legislation.The two persuasive sources of law which are case-law and academic writing are lesser than the three primary sources of law as Belgium does not provide the system of legal precedents.International law is also a crucial source in Belgium’s legal system, as Belgium is part of various European Union, such as European Convention on Human Right (ECHR), Treaty on European Union, and EU Regulations and Directives.