Jobs for foreign workers exist in abundance. At all levels of society, there is a great need for their labor. Much of the market, though, is unregulated and under the table. Only a small portion of it is legal. However, because of the prevalence of under the table work in society, most operations remain unmolested by immigration and tax officials. There is a general laxness in enforcement due to the great help these jobs are to the economy.
There are many who seek foreign workers, from individuals to corporations. They often find in these foreigners things they cannot in the domestic population. One of the these is skills. Often, foreigners may hold certain skill sets that are not readily available in the population at hand, due to shortage or other reasons. One common case is that of language. Many times, there are languages in need in the market place that are basically unknown in this country, at least in the workplace. Technical skills are another แรงงานต่างด้าว mou example. Teaching is very commonplace as well, meaning bringing in workers with knowledge sets to teach.
In these cases, businesses often find it easy to offer foreigners work, legally, because they have a strong justification for not dipping into the domestic work pool. Otherwise, labor laws, either directly or indirectly, require employers to employ within the borders. Only strong justifications, such as shortage of skilled workers, allows employers to legally employ foreigners.
For under the table work, which is often a mix of skilled and non-skilled labor, employers easily find an almost endless supply of workers willing to do an array of tasks. They range from construction to childcare. Although many of them are unskilled, there are many skilled tasks that can be had under the table. Computer program and repair is one. Even in the medical field, skilled under the table work can be found.
There are laws and regulations that prohibit under the table work for foreigners. They include tax and immigration laws, as well as labor codes. The authorities to enforce these exist at every level of government, depending on the particular violation and its jurisdiction.
However, because this type of work is so common throughout almost every facet of society, under the table employers enjoy a relative police free operation. Yes, there are cases of prosecution for immigration and labor violations. However, the number of cases proportionately is very low to the known amount of under the table work. No one knows the true amount of under the table work in the US. However, if this number were known, it would eclipse the number of prosecutions, making them almost nil.