What Is The Function Of Immigration?

What Is The Function Of Immigration? THE IMMIGRATION FUNCTION THE IMMIGRATION FUNCTION The immigration function is multifaceted and multi-layered. It involves deterrence of unlawful entry, facilitation of lawful entry and residence, naturalization, and termination of unlawful residence. What is the function of the Immigration and Naturalization Service? U.S. Citizenship and Immigration Services (USCIS), an agency