Joining the Police Force, Solving a Major Dismemberment Case from the Beginning.

Summary

In a secret room, Han Xu and Song Jia Er discover a dead mosquito that could potentially provide crucial forensic evidence. Song Jia Er, an expert in trace examination, carefully collects the mosquito and other evidence, believing its blood traces might help solve a case. During their investigation, Han Xu accidentally stops, causing Song Jia Er to bump into his back and hurt her forehead. Despite the minor injury, they return to the police station to process the collected evidence, with Song Jia Er insisting she's fine and refusing medical attention.

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