The role of legal custom and princely laws in regulating criminal law relations at the stage of the emergence of Russian statehood is shown, the main scientific approaches to the «Russian Law» as a regulator of criminal procedural relations and the foundations of the subsequent written code of laws are analyzed. The influence of church statutes of the X–XI centuries on the further development of criminal justice in the Russian state is shown, articles of Russian Truth containing elements of modern criminal procedure are analyzed. The authors analyze the articles of the Pskov Court charter devoted to the types of courts and judicial evidence. Russian «Russian Law» has been concluded about the significance of these normative legal acts in the history of criminal procedure law of Ancient Russia, that the «Russian Law» contained norms regulating criminal procedural relations and became the legal basis for the compilation of the Russian Truth. Russian Truth, the key source of the criminal procedure law of Russia in the XI century, was formed as a result of the systematization of legal customs, the norms of the «Russian Law», and the reception of some norms of byzantine and ecclesiastical law.