The defender found that the defendant committed a serious crime. When should he bring it up?

Inform the judicial organs of the facts of the crime immediately.

According to Article 35 of China's Criminal Procedure Law and Article 3 1 of the Lawyers Law, lawyers must engage in legal services within the scope permitted by law and have no responsibility to conceal criminal facts for criminal suspects and defendants. Article 48 A defense lawyer shall have the right to keep confidential the relevant information and materials of his client that he knows in his practice. However, if the defense lawyer knows that the client or others are preparing or committing criminal acts that endanger national security, public security and seriously endanger the personal safety of others, he shall promptly inform the judicial organs.

1. If a new criminal fact is discovered, but it does not affect the nature, such as theft, there were originally three charges, and now it is discovered that 1, the procuratorate can make additional prosecution or re-prosecution;

2. If new facts are discovered, it will affect the characterization of the charges. For example, in a robbery case, it is found that the defendant carried a murder weapon when committing the crime, then the procuratorial organ can change the prosecution to a charge of robbery;

3. If new facts, such as robbery, are found in the trial of theft cases, the procuratorial organ may additionally prosecute or separately prosecute;