Preliminary research on China's interregional judicial assistance in criminal matters 并列题名：Preliminary research on China's interregional judicial assistance in criminal matters Research on international judicial assistance in criminal matters 并列题名：Research on international judicial assistance in criminal matters On the institutional innovation of China's interregional judicial assistance in civil and commercial matters 并列题名：On the institutional innovation of China's interregional judicial assistance in civil and commercial matters Rules and practices of international juridical cooperation in criminal matters