The witness's testimony must have other evidence to form a complete chain of evidence, otherwise it cannot be convicted. In our country, all cases should attach importance to evidence, investigation and research, and do not trust confessions. If the evidence is insufficient to prove the facts of the crime, the defendant cannot be found guilty and punished.

legal ground

Article 55 of the Criminal Procedure Law of People's Republic of China (PRC) emphasizes evidence, investigation and research, and does not believe confession.

In sentencing all cases, we should attach importance to evidence, investigation and research, and we should not trust confessions. If only the defendant confesses and there is no other evidence, the defendant cannot be found guilty and punished; If there is no confession from the defendant and the evidence is true and sufficient, the defendant may be found guilty and punished. If the evidence is true and sufficient, the following conditions shall be met:

(1) There is evidence to prove the fact of conviction and sentencing;

(2) The evidence on which the final decision is based has been verified through legal procedures;

(3) According to the evidence of the whole case, the ascertained facts have been beyond reasonable doubt.