At 3:00 p.m. on July 6, 2020, Shandong Yiheng law firm held the first phase of criminal defense salon. Qi Wei, deputy director of the law firm, made a keynote speech and lawyers in the Office actively participated in the salon.  Director Qi shared with the young lawyers in the institute about how to cross examine the criminal defense lawyers in the court investigation stage and the background event of the judge of Haikou intermediate court ordering the lawyer to leave the court. In sharing, director Qi stressed that criminal defense lawyers should pay attention to communication with prosecutors and judges. For complex cases, it is suggested to hold pre-trial meetings. In general, the earlier a lawyer intervenes in a case, the better the effect will be. As to the extent of communication, different cases will have different & amp; degree & amp; rdquo. At the same time, in his speech, the director mentioned how to deal with "when there is a lot of criminal evidence as a lawyer" and "how to deal with it" when it is inconsistent with the opinions of the public prosecutor and the judge, which provides valuable guidance for young lawyers to engage in criminal defense.In his speech, Zhu mengke, a lawyer from Shandong Yiheng law firm, described his own experience in & quot; court cross examination & quot. Through the analysis of the cases handled by himself, lawyer Zhu elaborated the importance of communication between criminal defense lawyers and judges and prosecutors before the trial, and the importance of lawyers adjusting cross examination strategies at any time according to the situation in the trial, so that young lawyers have a deeper understanding of cross examination in the court investigation stage.Finally, young lawyer Zhu Zhihao shared his experience. Lawyer Zhu believes that in the process of criminal defense, the "cross examination" link is more important than the "debate" link. Cross examination excludes illegal and defective evidence, and the views put forward by lawyers in defense also need evidence to support, which in fact still reflects the importance of cross examination. Lawyer Zhu also said that in the process of cross examination, we must not forget the authenticity, legality and relevance of the evidence, and let the judge understand the purpose of presenting evidence.