Now, when intensive economic relations are being formed between nationals, the issue to apply foreign law rules become more active. Judges and lawyers may not be acknowledged with the essence of resolution of some conflicts of law cases. The need of international cooperation in the civil matters has long been fully recognized and the problem of proper organization and regulation of judicial assistance has been several times the object of international agreements, both bipartite and multipartite. This article will undertake to consider the present framework of determining foreign law content in relation to international assistance. Some writers have said that international cooperation is, indeed, an international duty imposed by the law o...