Therefore,giving evidence in court is not only a law problem but also a social problem in China.

From consideration of substantial worth, the witness giving evidence in court can ensure the reality of evidence, adapt to the modern reformation requirement of justice system.

the building-up of the system in chinese is confronted with resistance of supporting system about witness appearing in court,openings of evidence,lawyer s advocacy and independent judgement and so on.

In civil action,the low ratio of witness appearing in court is a sticking point that always puzzles Chinese civil action s judicial proceeding.

Being a tradition of international justice and a general principle, the system of a witness appearing in court helps improve the mode of adjudication, find substantive authenticity, maintain procedural justice and safeguard litigant s procedural rights.

However,from the point of view of our judicial practice,in fact,there are few people who are willing to appear in court as a witness,which infringes upon the solemnity of law as well as the quality of court proceedings,and also restricts the reform of court censorship.

The rule that criminal witness appearing in court as a witness is one of the hot research points in the evidence law,in our country the technical studying of the question is more than theoretical research,it seems that there already has broad acceptation on the theoretical basis of the question,i.

Under China\'s current legal system,the system of the detective appearing in court as a witness has not be established.