Job Recruitment Website - Immigration policy - What is the discourse system of immigration management?

What is the discourse system of immigration management?

1, government policy; Immigration management policies, including entry, exit, immigration, employment and other related policies.

2. Law; National laws and regulations on immigration management, such as immigration law, immigration regulations, immigration policies, etc.

3. Social services; Social services provided by the government for immigrants, such as health insurance, education and employment.