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

Summary

Guan Feng's footprint identification certification was approved, making him a dual expert for the provincial department, eliciting congratulations from his peers. His exceptional work led to his promotion as Deputy Squadron Leader of the 2nd Squad in Hongcheng Branch. With an expert allowance of nearly 40,000 yuan and additional income from city bureau duties, his total earnings approached 60,000 yuan monthly. This success sparked envy among colleagues, who joked about his financial windfall and future prospects. Guan Feng's leadership inspired team members, fostering a celebratory atmosphere filled with camaraderie and humor.

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