I, King of Criminal Investigation, Solving the Rainy Night Serial Murders from the Beginning.

Summary

The passage describes Guan Feng's successful three-level expert certification in microexpression analysis. During a conference, experts from the provincial department assess his skills and ultimately approve his certification. Despite offers to transfer to a higher-level department, Guan Feng chooses to remain at the grassroots level. Back at his office, his colleagues learn about his achievement and become interested in pursuing similar expert certifications. Guan Feng generously offers guidance, recommending books and explaining techniques to help his team members improve their observation and analysis skills.

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