In the novel, Qin Ming, Lin Tao and Chen Shiyu have to face a mysterious new challenge, and all kinds of cases leave silent clues such as provocative "sweeper" signature and Morse code without leaving a trace. How to find subtle flaws is a new challenge for Qin Ming. This is also the most brain-burning novel in the original novel.
Han Tianfeng first appeared in the second episode of Forensic Medicine Qin Ming. Tan Bureau invited Professor Infantry, a handwriting expert, to analyze the handwriting left by Gao An, and Professor Bu took his assistant Han Tianfeng. Han Tianfeng also expressed his views on the handwriting left by the sweeper. As soon as Han Tianfeng came up, he said, "The font looks very gentle, like it was written by a woman." From this point, Han Tianfeng directly attracted people's attention from the street sweeper to a woman. Coupled with the looming image of a woman in red, the police focused their attention on this woman and got rid of their doubts well.
Later, Han Tianfeng saw the little girl selling flowers on the overpass and bought them at one breath. This can be linked to the previous "sweeper" who gave money to the tramp next to the mailbox, which shows that this sweeper is a "kind" person. Later, Han Tianfeng wanted to take the little girl to the hospital, but she was rejected by traffickers and beaten by gangsters. Soon, the traffickers' gang was wiped out by the gang. Female leaders, in particular, witnessed her husband's tongue cut off and eyes gouged out, and punished her more severely, indicating that the sweeper hated her more because she snatched the injured little girl from Han Tianfeng on the overpass.