However in the absence of an effective control private recruitment promotes growth of illegal immigration. The measures accepted by the countries-exporters in relation to illegal immigrants, regularly are reconsidered and become tougher. The sharp increase in quantity of illegal immigrants is observed usually in days of crises. then to a course there are various methods, as quite civilised (payment of awards to the immigrants who are returning home; creation of system of vocational training for simplification of their employment), and compulsory (violent dispatch of a part of immigrants from the country).

Representation about immigration will be incomplete if not to consider illegal immigration. In the European countries the strict immigration control directed against illegal immigration operates. According to the researches spent in 1987 about the characteristic of illegal immigrants in Europe, the conclusion has been drawn that illegal migration can be considered as the movement replacing one category of a foreign labour another, with smaller security and more operated.

Measures of struggle against illegal migration declared Austria, Sweden, Finland. Sweden intends to demand from the immigrant not only already signed contract for work, but also knowledge of Swedish or English of languages, and also acknowledgement of reliability on habitation hiring.