Undoubtedly, enforcement of immigration law can only take place in two types of venues: places of employment and public services such as schools, law enforcement, and social services.

Employers are already required to effectively vet applicants for legal residency. They have all sorts of tax forms to fill out and they can be severely fined for hiring illegals off the books.

Obviously, as well, if a LEO discovers a faked driver's license during a routine traffic stop, the illegal is in big trouble.

Interestingly, deportations have greatly increased during the Obama administration.