Today, as a consequence of cross‐border movement of people, goods,
capital and delivering of services exists more and more cases with
international element. Authority of state before which the process is
started, firstly by establishes the existences of international
jurisdiction. If the authority establishes its competence, by conflict rule
it determines ex officio the law of state which law should be applied.
When the law of foreign state has to be applied, competent authority is
obliged ex officio to deterime and apply it.The methods of cognition of
foreign law content are regulated by law regulating private
international law, bilateral agreements regulating international legal
assistance, multilateral agreements sedes materiae, i.e. European
Convention on information about foreign law and multilateral
agreements lex specialis.The purpose of this paper is to present the
concepts encompased in legal sources of the Republic of Serbia, and to
compare them mutually as well as to present the provisions of
comparative practice, i.e. states in the region.