Core Viewpoint - The article highlights the significant role of advanced DNA technology in criminal investigations, emphasizing the contributions of Dr. Wu Yujian, a police officer specializing in DNA forensic analysis, in solving complex cases and enhancing public safety through scientific methods [1][6]. Group 1: Professional Background and Contributions - Dr. Wu Yujian has directly identified over 500 criminal suspects using DNA technology during his nine years in the police force, contributing to the resolution of multiple major cases [2]. - He transitioned from a successful career in a genetic testing company to the police force after being inspired by a recruitment announcement for a DNA expert, reflecting a strong personal interest in forensic science [4][5]. - Dr. Wu has played a crucial role in establishing a second-generation DNA sequencing platform in the forensic laboratory, which significantly improves the efficiency and accuracy of DNA analysis in criminal cases [5][7]. Group 2: Case Studies and Impact - A notable case involved a burglary where Dr. Wu utilized the second-generation DNA sequencing technology to analyze over 50 biological samples, leading to the identification of a suspect and the recovery of over 300 million yuan in stolen goods [5]. - The article underscores the importance of expanding DNA laboratory capabilities within the police system, as seen in the establishment of DNA labs in various police districts to enhance investigative support [7]. - Dr. Wu's efforts have not only solved numerous cold cases but have also elevated the overall DNA operational capabilities within the Wuhan police, demonstrating the value of integrating scientific expertise into law enforcement [6][8].