《chinese detective》E31
Episode 31
Wang Ran discovered that the DNA of the Gu family in the village matched that of the suspect. This excited Tao Weizhi, who was eager to take the test results to catch the suspect.However, Wang Ran was not entirely convinced of his discovery and called Cao Yang for help.Cao Yang suggested that Tao Weizhi take the collected samples to the provincial capital for re-examination.After another test by Cao Yang, the results were consistent with Wang Ran's, confirming that the suspect was indeed in the Gu family.Subsequently, Wang Ran conducted an investigation on the men of suitable age in the Gu family, but no suspects were found.Since then, Tao Weizhi has become extremely enthusiastic about DNA testing.
When Qin Chuan and his party arrived in Donglin County, Fang Wen, Yang Wei and others had been waiting for a long time.Qin Chuan was eager to see Tao Weizhi, so Yang Wei contacted him, and Tao Weizhi promised to return after getting what he wanted.Qin Chuan asked Cao Yang to notify Wang Ran to come.Early the next morning, Qin Chuan and his party arrived at the crime scene, and Cao Yang showed Qin Chuan one by one the evidence left at the scene.Qin Chuan noticed that there were five beverage bottles at the scene, three of which contained tadpoles, but the other two were not tested.Qinchuan sent Cheng Shufeng to the victim's home to find out how many bottles the girls had taken.
By asking the police who were present at the scene, Cheng Shufeng learned that the three girls brought four drink bottles.The investigators only inspected the bottle body after the incident, but not the mouth of the bottle.All evidence is stored at the County Public Security Bureau.Qinchuan then sent Su Chang and Cao Yang to re-test all the evidence overnight.At the same time, Qinchuan also learned that the surveillance video captured a man entering and exiting the ditch to catch tadpoles. However, due to the large number of people at the time and the unclear surveillance, the police did not pursue the investigation in depth.Yang Wei and Cheng Shufeng complained privately and believed that there was no need for another DNA test.
Qin Chuan and Fang Wen came to the small shop in the village. This shop has a history of seven or eight years and has been equipped with surveillance cameras from the beginning.One month after the incident, investigators came here to investigate, but the images had been covered.Qin Chuan was disappointed and believed that important evidence had been lost.Fang Wen admitted that he had been negligent during the investigation.
Yan Jun handed all the evidence to Su Chang and Cao Yang for review. They found that the suspect's DNA was left on the mouth of one of the beverage bottles.Su Chang immediately reported to Qinchuan.Qinchuan then discussed with Liu Lin and Wang Ran to establish a big data system to better utilize new technologies.
Tao Weizhi hurried to Qinchuan, looking haggard. He was eager to report to Qinchuan.Qin Chuan asked him to eat first. After Tao Weizhi ate quickly, he couldn't wait to report the progress of the case.Six years ago, Wang Ran ruled out the Gu family as a suspect, which confused Tao Weizhi.Yang Wei and Cheng Shufeng persuaded him to give up, but Tao Weizhi was unwilling and took them to the provincial capital to ask Su Chang and Cao Yang to test again.After re-testing, it was confirmed that the DNA of the Gu family was related to the suspect, but there were so many members in the Gu family that it was impossible to find out.Su Chang, Cao Yang and Lei Xiujun persuaded Tao Weizhi to give up, but he was determined to get to the bottom of it because the innocent murder of three girls drove their mother into madness.
Tao Weizhi learned that Gu Bingyin, the oldest living person in the Gu family, lived in Shucheng, Yuhe County, so he took Yang Wei and Cheng Shufeng there.The vehicle broke down along the way and the two wanted to retreat, but with Tao Weizhi's encouragement, they continued on.Tao Weizhi asked Gu Bingyin in detail about the ancestors of the Gu family and their descendants.
For six years, Tao Weizhi has been almost obsessed with investigating the case.Once, when he passed by Donglin Dumpling Restaurant, he stopped to have a meal and took the opportunity to extract the owner's DNA.
