数字时代刑事证据合法性问题的案例比较研究

A Comparative Study of Cases on the Legality of Criminal Evidence in the Digital Age

摘要: 数字技术的深度渗透使电子数据成为刑事诉讼中的“证据之王”，其合法性认定已成为决定案件裁判最终结果的重要因素。与普通证据种类相比，电子数据具有易篡改、依赖性强、形态多元等特征，导致其收集、固定、审查全流程的合法性判断深陷技术与法律的双重困境。本文以刑事证据合法性的核心构成要素为框架，选取远程勘验、爬虫取证、区块链存证等典型场景的司法案例，从取证程序规范性、技术标准适用性、权利保障完整性三个维度展开比较剖析，探究实践中存在的介质扣押不规范、技术审查形式化、权利救济不足等共性症结。结合域外制度经验与本土司法实践，提出构建“程序法定 + 技术合规”双重审查准则、健全瑕疵证据补正规则、设立专业化审查机制等解决路径，为数字时代刑事证据合法性审查体系的完善提供实践借鉴。

Abstract: The large-scale application of digital technology has made electronic data the “king of evidence” in criminal proceedings, and the determination of its legality has become a crucial factor influencing the final outcome of case judgments. Compared with ordinary types of evidence, electronic data is characterized by being easily tampered with, highly dependent, and diverse in form, which plunges the legality judgment throughout the entire process of collection, preservation, and review into a dual dilemma of technology and law. Taking the core components of the legality of criminal evidence as the framework, this paper selects judicial cases in typical scenarios such as remote investigation, crawler evidence collection, and blockchain evidence preservation, conducts a comparative analysis from three dimensions: the standardization of evidence collection procedures, the applicability of technical standards, and the completeness of rights protection, and explores common problems in practice including irregular seizure of media, formalized technical review, and insufficient rights relief. Combining overseas institutional experience and local judicial practice, it proposes solutions such as constructing a dual review criterion of “statutory procedure + technical compliance”, improving the remedy rules for defective evidence, and establishing a professional review mechanism, so as to provide practical reference for the improvement of the legality review system of criminal evidence in the digital age.