Seen from this perspective employer sanctions is meant to keep undocumented immigrants out by discouraging employers from providing jobs for them. The government's renewed effort to enforce employer sanctions comes at a time when immigrant networks have already entrenched themselves. These networks are also used as a channel through which immigrants and employers organize their recruitment. Immigrants employ other immigrants, immigrants are used by employers to recruit more immigrants. Labour brokers also tap into immigrant networks to ensure a cheap supply of labour for their clients.
Some employers also make use of child labour.
The Chamber of Mines, some construction companies and farmers regard employers sanctions as a constraint on their right to determine wages, conditions of employment and enjoy bigger profits. It should be recognized that employer sanctions are not effective to prevent immigrants from entering and finding jobs for as long as there are employers who are willing to provide jobs because they are able to exploit the illegal status of these immigrants. The employment of illegal migrants is a contravention of immigration law. More significantly, however, it is also a means used by employers to circumvent labour law which protects workers from the kind of exploitation that illegal migrants are subjected to. Perhaps a better approach will be to ensure that all workers, undocumented or not, are protected from exploitation.