Among the means directed on restraint of growth of number of foreigners, it is necessary to note established in some West European countries of immigration a rent of foreign workers. Taxes from businessmen for employment of new workers-migrants are considered by these countries as a source of additional incomes which can be used on building of schools for children of immigrants, professional preparation granting, improvement of social conditions. During the period with 1973 for 1975 in Germany, France, Switzerland have been raised the sums of taxes for employment of each foreign worker.

Despite increase of a rent of immigrant workers, for many businessmen there is favourable use of work of foreigners. The government of the Netherlands for prevention of the further growth of immigration in 1976 has passed the law limiting the maximum number of foreigners from the countries of the Mediterranean pool at one enterprise. Last cannot exceed 20 persons. The licence in this case stands out not to workers, and employers. The law extends on all foreigners who are officially being in the country.

With a view of reduction of a contingent of foreigners the countries-importers actively use refusal system in delivery of the documents resolving stay in the country and employment by labour activity. In the conditions of transition to the policy focused on reduction of number of a foreign labour, in the West European industrially developed countries-importers more strict rules of prolongation of period of validity of these documents are applied. There are many ways to put the immigrant out of the law. So, the host country authorities can refuse to foreigners renewal of documents on the ground that in the given area many immigrants of a certain speciality, for example masons or shtukaturov or because the immigrant has got to police. under the legislation operating in the West European countries the foreigners who do not have the work permits, are obliged to leave the country. For stimulation of dispatch of immigrants from the country in 1975 three types of work permits limiting time of stay of foreigners one, three and ten years accordingly are entered into France. But the prefecture often replaces the permission to one or three years with the receipt valid of only three months, that is various methods, and is frequent also dodges try to put foreigners out of the law and by that to get rid of them.

To the Purposes of reduction of number of immigrants in many former largest countries - importers of a labour serve and already mentioned systems of penalties and judicial sanctions in relation to the employers using work of illegal immigrants. Besides, in a similar case the court can demand closing of the company or its part. similar system operates in Luxembourg. In Germany the sum of the penalty from the foreigner working without the permission, makes from 500 to 1 thousand marks. Along with it the penalty in the sum of 50 thousand marks is raised from owners of the enterprises using work of not registered foreigners. Especially austerity measures are applied to the intermediaries who are engaged in delivery of illegal immigrants. The French legislation provides the right of imprisonment of such persons for from two till five years or penalty collection for the sum from 10 to 200 thousand francs.