The normalization of China s interregional judicial assistance in criminal cases is a long and gradual process,which can be classified into three steps:signing agreements of the interregional judicial assistance in criminal cases;proclaiming"the model law of China s interregional judicial assistance";drafting "China s judicial assistance law".

In China, the subjects of interregional judicial assistance in criminal cases refer to the following four legal districts as Mainland, Hong Kong, Macao and Taiwan, which the functional departments of above assistances refer to those that operate practical judicial assistance in criminal cases.

Owing to the character, "one nation, two systems and poly-legal families", China s interregional judicial assistance in criminal cases becomes a trans-subjects problem involved the related subjects as international public law, international private law, criminal law, criminal procedure law, and so on, hence the researches on it have been always in the ascendant.

International Criminal Judicial Assistance of Anti-Corruption——Preliminary Discussion on System of Criminal Judicial Assistance of United Nations Convention on Striking Transnational Organized Crime;

Criminal judicial assistance is an effective extension of a country\'s judicial rights.

In recent years criminal judicial assistance and extradition between China and the ASEAN member countries have made great development,through the criminal justice assistance and the signing of an extradition treaty and apply initially establishes criminal judicial assistance and cooperation mechanisms to combat crime.

Research on the Establishment of International Criminal Judicial Assistance of PRC;

International criminal judicial assistance is activities between sovereign states, whereby assistance or service as proxy is offered in handing of criminal proceedings or execution of criminal entity rights pursuant to relevant international treaties or reciprocal principle.