Immigration
Immigration law concerns the regulation and control of aliens, noncitizens or immigrants and includes the admission and removal of aliens or foreigners, visa categories (permission for extended stays in the US), asylum (refuge), naturalization (citizenship process), immigration crimes, denaturalization (loss of citizenship) and deportation. Legal issues include visa and permanent residency application and revocation process, asylum procedures and remedies, naturalization or citizenship procedures, denaturalization and deportation procedures.*
*Source: Lawyers.com




