The basis of this paper is the study of legislative acts of such counties as Latvia, Lithuania, Estonia, Poland, Ukrainie and Russia, related to national security, public order and interests of state prosperity in order to prevent disorders or crimes, to protect health and morality, to safeguard rights and freedoms. The objective of the paper is to assess whether the national legislation meets in this field contemporary requirements, and what are differences in comparison with the legislation of other countries. Our results show that the laws of above mentioned countries are supplemented in due time as much as possible taking into account needs and financial resources of corresponding state. The laws have also similar objectives and tasks. There are some distinctions in application of legal provisions, which, after discussion, would be usefully to introduce into normative regulations of the Republic of Latvia. The norms of law must be clearly defined; the commensurate restrictions must be appropriate for achievement of particular objective, as well as socially necessary. Moreover, the authors of the paper offer concrete proposals taking into account human rights, contemporary situation on the international scene, as well as potential of respective state institution.