One of the important elements of international court proceedings is the acquisition of information materials upon which the court makes its decisions. Such information, same as in the context of domestic courts, is called judicial evidence. The constituent documents of international courts contain very meager regulation of acquisition and evaluation of the evidence. The parties to international legal proceeding are the sovereign states, which makes it primarily adversarial. This implies that the parties represent the facts that confirm their positions. However, international courts rely on the principle of jura novit curia (“the court knows the law”), i.e. the parties to legal dispute do not need to plead or prove the law that applies to their case. This problem gains special importance due to the growing number and variety of international courts, as well as the emergence of a number of quasi-judicial institutions; in this sphere, all of them rely on the jurisprudence of the International Court of Justice. Certain new trends are traced in the practice of courts and even categories of cases that pertain to human rights.