Hao Chunli, Vice President of the Beijing Lawyers Association In her speech, she emphasized that solid evidence review and robust cross-examination skills are crucial safeguards for protecting the legitimate rights and interests of the parties involved and promoting judicial fairness. She also pointed out that... With the development of information technology, the importance of electronic data in case handling has become increasingly prominent. Lawyers need to keep pace with the times and continuously enhance their professional expertise in this area.

This training session brings together numerous experts and scholars from both academia and practice, including: Associate Professor Zhu Tonghui from the Law School of Nankai University, Zhang Jiahua, Deputy Director of the Criminal Procedure Committee of the Beijing Lawyers Association, and Sun Tao, Deputy Secretary-General, among others. It provided participating lawyers with a wealth of learning perspectives and practical strategies. Many practicing lawyers actively participated, creating a vibrant atmosphere of on-site learning and exchange.

During the special presentation session, Director Wang Jun delivered an in-depth lecture on the topic of “The Application of Electronic Data in Criminal Defense,” drawing on her extensive practical experience. She pointed out that, against the backdrop of information technology profoundly transforming social life and criminal patterns, electronic data has become a key type of evidence in criminal cases, and the ability to effectively review and utilize such data is directly linked to the quality and effectiveness of defense work.

Director Wang Jun’s presentation was both systematic and practical. She began by outlining the legal definition of electronic data, its various forms of presentation, and the relevant regulatory framework, thereby clarifying the basic framework for its use in criminal proceedings. She then focused on comparing the strategic differences between the prosecution and the defense in their use of electronic data: while the prosecution emphasizes the standardization of collection and extraction procedures as well as the establishment of a complete chain of evidence, the defense must concentrate on carefully scrutinizing the legality of the evidence-gathering process, the authenticity of the data, and its integrity. And is skilled at using specialized tools such as hash value verification, along with technical methods like file attributes, to detect potential issues.

By citing several typical criminal cases, Director Wang Jun vividly demonstrated how, in cases involving the infringement of citizens’ personal information and the illegal acquisition of data from computer information systems, How to effectively identify evidentiary flaws by conducting professional cross-examination on electronic data exhibits from dimensions such as authenticity, legality, and relevance. Thus, a strong defense argument is formed. She also briefly introduced the supporting role of big data analytics in defense and outlined practical approaches for initiating procedures to exclude illegally obtained evidence in response to unlawful evidence-gathering practices.

Director Wang Jun’s speech was substantive and logically well-structured, closely aligned with the practical needs of frontline criminal defense work, and resonated widely among fellow participants, earning them positive feedback.

Xinglai Law Firm has always been closely attuned to the latest developments in the field of criminal defense and actively organizes and supports lawyers’ participation in various professional training programs. Director Wang Jun’s recent involvement in the Bar Association’s specialized training and her sharing of expert insights fully demonstrate Xinglai Law Firm’s pragmatic approach—staying abreast of industry trends, deepening professional learning, and continuously enhancing service capabilities. Moving forward, Xinglai Law Firm will continue to refine its professional skills through active engagement in industry exchanges and other initiatives, providing clients with even higher-quality legal services while also contributing to the professional development of the legal profession.

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