The natural sources of administrative law include:
1. Constitution: Administrative law is derived from the constitution of a country, which outlines the powers and limitations of administrative agencies.
2. Legislation: Administrative law is also derived from statutes and laws passed by the legislature that establish administrative agencies and grant them specific powers and duties.
3. Judicial decisions: Court decisions interpreting statutes and regulations, as well as common law principles, play a significant role in shaping administrative law.
4. Administrative regulations: Regulations issued by administrative agencies to implement and enforce statutes are a key source of administrative law.
5. Administrative decisions: Decisions made by administrative agencies in specific cases also contribute to the development of administrative law.
6. Custom and practice: Over time, certain customs and practices within administrative agencies may become recognized as sources of administrative law.
7. International law: International treaties and agreements may also influence administrative law in certain countries, particularly in areas such as trade, environmental protection, and human rights.