- Traces of the Detective - The nationwide roadshow came to Chongqing, and Zhang Yi, Ao Ziyi, Li Gan, and Yuwen Qiushi met the audience.Farewell to masters and apprentices, dialect training, and losing more than ten pounds in one month, several actors talked about their experiences on the set.
This movie, which is currently being released, is based on the deeds of Cui Daozhi, a recipient of the July 1st Medal and one of the first batch of specially invited criminal investigation experts from the Ministry of Public Security, and is based on real cases.Cui Xun, played by Zhang Yi, has grown from an underappreciated technician to a trace inspection expert. He has been on the front line with Huang Rende and Wang Weiguo for many years, solving many serious cases and setting many precedents.Ma Li and Chen Minghao starred in Huang Rende and Wang Weiguo respectively.The four real-life crimes in the film span decades.

When Zhang Yi talked about Cui Xun, he first talked about his seniors.In traditional industries such as trace inspection, in addition to the knowledge taught in schools, there is also a lot of experience to be learned from the older generation.In the film, what Mr. Xu Minghai left to Cui Xun was not only technical experience, but also his attitude towards the case, the country and the people.Zhang Yi said that it was this inheritance that allowed Cui Xun to maintain inner peace and serve in this position for many years.

Ao Ziyi remembers the scene where Niu Meng and his master Cui Xun broke up: Niu Meng wanted to stay, but his master asked him to follow his own path, experience and grow.
In Ao Ziyi's heart, Cui Xun is selfless and rational, and will not let external factors interfere with his judgment.The audience also talked about Niu Meng's hard work and inner tenacity; as the backbone of the trace inspection team, this character's performance when the master and apprentice parted moved many people.

In order to play Zou Gangli well, Li Gan studied Jiangxi dialect.The crew asked the teacher to speak the lines sentence by sentence in dialect. He checked in regularly and practiced repeatedly, mastering the accent by repeating it again and again.Zou Gangli on the screen collapsed step by step under the heavy pressure, and the audience sighed for this character after watching it.

Yuwen Qiushi watched the finished film for the first time, and even he was shocked by Zhou Jincheng.
In order to get closer to the character's morbid state, he lost more than ten pounds in a month and also adjusted his accent.When the audience mentioned Zhou Jincheng, they talked about the impact of this psychologically twisted criminal, and also talked about the contrast between the character and the actor himself that people dare not recognize.

The discussion on the performance also extended to the trace inspection work itself.Some viewers described Zhang Yi's performance as "as stable as Mount Tai", which demonstrated the calm, serious and long-term studying temperament of that generation of technical workers.In an era without databases and high-tech equipment, investigators relied on naked eyes, patience and repeated comparisons and verifications to trace the truth from subtle traces.The audience followed the evidence through the four cases and was still thinking about it after the show ended.
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