He is called a legend of the police. A shell can clear the fog of the case, and only half a fingerprint can lock the real murderer. In 2007, Cui Daozhi received a task. After carefully comparing hundreds of fingerprints, he finally found seven characteristic points in the fingerprint of a suspect's left thumb that were consistent with the blood fingerprints at the scene, and locked the real murderer.

He has fought many battles and made outstanding achievements. He is known as the "anchor needle" for the trace identification of major and difficult criminal cases in China police. Cui Daozhi, who is 85 years old this year, is full of vitality that does not match his age. He walks fast, moves fast, speaks confidently and thinks clearly. Since the police in 64 years, thousands of cases have been involved in on-site investigation, and more than 7,000 pieces of forensic evidence have been found without any mistakes.

Brief introduction of Cui Daozhi

As the earliest expert on bullet marks in China, Cui Daozhi's "unique skill" is to distinguish various hairline marks from shell casings. After three days and two nights of appraisal, Cui Daozhi finally came to the conclusion that the shell casings of the two cases were shot by the same rifle, so the cases in the two places can be investigated together. A week later, the police quickly locked in and arrested the criminal Bai Baoshan, which was completely consistent with Cui Daozhi's judgment.

In 2002, a mother and son were killed at home in Heilongjiang, leaving only half a bloody fingerprint in the newspaper. At one time, due to the difficulty of inspection, many authoritative appraisal institutions gave the conclusion that "fingerprint features are few and there are no appraisal conditions", and the case dragged on for five years.

In 2007, Cui Daozhi received a task. After carefully comparing hundreds of fingerprints, he finally found seven characteristic points in the fingerprint of a suspect's left thumb that were consistent with the blood fingerprints at the scene, and locked the real murderer.