On the necessity of the system of refuse to testify against family member

The system of Refuse to Testify against Family Members is a law characteristic of the Chinese law system,which had been highly recommended by feudal rulers and repealed by the new China government.The writer made a survey about the influence of such a law to modern people,which shows the effect is very faint.However,the system is important to building a harmonious society because it takes moral as a bond.Therefore,it should be reconstructed in modern criminal law.