Chapter 897: Visit

Shen Yaoweng searched along both sides of the Taihe River for more than a week. He didn't even go home on the weekend, and went upstream along the Taihe River to take samples, walking about 20 kilometers.

This distance is already very short. In the Ningtai County Bureau before, it was basically the limit. If you search along the river again, the burden on the laboratory will be too heavy.

However, after searching for such a long distance, the matching diatoms were still not found, indicating that either the luck of sampling was not good, or the victim's entry point was not within the 20-kilometer range upstream.

This conclusion made Shen Yaoweng's mood become nervous.

Monday morning.

Shen Yaoweng caught the time of going to work, asked for the results of the laboratory, and after confirming that it was still not matched, he went to report to Jiang Yuan dejectedly.

The cases of Ningtai County Bureau itself have not had such difficult cases for a while. Of course, this is not strictly a case of Ningtai County, but a case of the entire Taihe River Basin. In the past, it was likely to be integrated and arranged by the Qinghe Municipal Bureau. Or, if the floating corpse drifted to other cities, it would have nothing to do with Qinghe.

Also knowing the complexity of the floating corpse case, Shen Yaoweng's report was also helpless: "We started sampling every 300 meters, and later changed to sampling every 150 meters, but none of them matched. Don't let this corpse drift down from Pingzhou."

Once a corpse crosses the provincial border, the difficulty of investigating the case can be increased by a level. Not only is communication troublesome, but the key is that the expenditure of funds is likely to be increased by a level, which can be said to be a death point for most county bureaus.

However, this is not a problem for Jiang Yuan's cold case team. The infrastructure speed and infrastructure level of Ningtai County have been pulled full. The residue exposed from the fingers has made the court and the procuratorate gain some benefits. In contrast, the expenditure of funds for solving cases is relatively abundant.

Jiang Yuan thought and said: "It cannot be ruled out."

"Yes, those who can drift 20 kilometers can drift 200 kilometers. This case is troublesome." Shen Yaoweng sighed heavily. He also hoped to solve the case like a broken bamboo. Especially since he has been valued by Jiang Yuan recently, Shen Yaoweng has a mentality of making contributions in his heart.

Shen Yaoweng's cousin Shen Yaoguo is the detachment leader of the Changyang City Public Security Detachment, which is a very comfortable and very good position in the police sequence. But when it comes to business, when talking about the contempt chain within the police, the poor and specialized criminal police are always the top layer. Shen Yaoweng does not expect to reach the detachment leader level like his cousin, but if he can achieve something in the position of criminal police, it will not be in vain for his career.

Shen Yaoweng has many thoughts and active ideas. Thinking of this, he couldn't help but look up at Jiang Yuan, trying to test: "As far as I know, some places' drowning cases, especially this kind of corpse rushed down from upstream, where the situation is not very clear, are often reported as abnormal deaths."

Abnormal death is relative to normal death. Murder is definitely an abnormal death, and drowning or traffic accidents or various accidental deaths also belong to abnormal death. And on the police side, abnormal death excludes the possibility of homicide. In other words, it is not a criminal case.

It is not a criminal case, so naturally it does not need to be solved. As for the solution, is it considered solved? Like solution.

Jiang Yuan would not have such thoughts. He ran to many places to handle cases last year, and they were all difficult cases in various places. It is impossible to return to his own turf and make a pot of raw rice.

"Call Liu Chu." Jiang Yuan's existing technology also has limitations. In the case that biological identification technologies such as DNA, facial recognition, and fingerprints cannot play a role, it is very difficult not only to determine the source of the corpse, but also to determine the place of the source of the corpse.

At this time, Liu Jinghui's reasoning ability seems to be quite useful.

While waiting for Liu Jinghui, Jiang Yuan matched several fingerprints by the way, and cleared several topics in the "Shannan Fingerprint Exchange Group".

Because there are experts like Jiang Yuan who are willing to answer questions actively, the "Shannan Fingerprint Exchange Group" has a great reputation in trace inspection, and there are many trace inspection and even expert-level figures from other places who have joined. Jiang Yuan treats them equally and answers questions if he can.

He is not like many famous experts who are old when they become famous, and they want to do things but can't do much, so they cherish their physical strength and energy. In addition, many people are not familiar with the Internet and often do not answer questions in similar groups.

And the fingerprint identification ability that Jiang Yuan has accumulated now can be said to be top-notch in the country. It is not an exaggeration at all. He is only in his early 20s, and he is in a small unit like Ningtai County. Every day, except for solving cases, there is almost nothing else to do. It is completely a state of having nowhere to vent his energy. Spending a few minutes comparing fingerprints in the group is a pastime for Jiang Yuan.

Especially after the members of the "Shannan Fingerprint Exchange Group" became familiar with Jiang Yuan, they also knew that he liked feedback. From time to time, they reported who was sentenced to death, or life imprisonment, or ten years because of fingerprint matching, and Jiang Yuan would feel very happy.

On the other hand, some experts who joined the fingerprint group later started to find Jiang Yuan for fingerprint identification. After they finished the fingerprints they wanted to identify, they were embarrassed to quit the group and leave. Due to the interest of returning favors or human favors, everyone would often take a few fingerprint identification tasks in the fingerprint group to help others match.

After going back and forth, the scale of the "Shannan Fingerprint Exchange Group" has become larger, but the speed of solving problems has accelerated, attracting more people to join.

"Jiang Yuan." Liu Jinghui basically drove over as soon as he received the news, and arrived very quickly.

Jiang Yuan greeted him with a smile, and while asking someone to serve tea, asked, "Has anyone told you about the case? Any ideas?"

"I saw it. A 21-year-old female, cannot be facial recognized, no DNA record, no fingerprint record. This itself is very rare." Liu Jinghui paused and asked: "I don't know how the sketch you drew is, what level?"

"It's about the same level as my footprint identification." Jiang Yuan needed to inform his teammates of this information.

Liu Jinghui's eyelids jumped: "When did you learn this technology?"

"I learn things extra fast." Jiang Yuan felt that explaining to this extent was enough.

Liu Jinghui really didn't ask any more questions. What's there to ask? There are really people in this world who have photographic memory, and there are really people with absolute pitch. The level of many technologies that Jiang Yuan has shown so far is top-notch in the country and even the world. It is ridiculous to talk about effort without talking about talent.

"If you have this level of sketch portrait level, it means that the deceased's face is not in the photo library. Haven't you handled a second-generation ID card?" Liu Jinghui reasoned, and then reasoned one step forward: "It is basically unlikely to be an urban resident. It is very inconvenient for a 21-year-old not to have a second-generation ID card. It is highly likely that she lives in the countryside, and her living conditions are poor, and her family conditions are poor."

Jiang Yuan nodded slowly: "There are traces of labor on hands and feet, which is indeed possible."

He can only corroborate Liu Jinghui's deduction now, and cannot reverse it. In the current environment, traces of labor on hands and feet, and even the environment of long-term labor, cannot prove that she lives in the countryside. Even the concept of living in the countryside has become blurred.

But from another aspect, in the current society, a 21-year-old girl who looks okay but has lived in the countryside for a long time and has worked for a long time is a rare situation.

Liu Jinghui continued: "Family conditions are poor, living conditions are not good, and she is a 21-year-old female who has lived in the countryside for a long time. It is very likely that she is already married... Of course, it is very likely that she has not received a marriage certificate. Have you given birth? Abortion?"

These two items can be seen in the autopsy.

Jiang Yuan shook his head: "No. Basically no medical traces. Teeth are not very neat, and have not been treated."

"It can only be said that it further proves the previous point. The key now is that it is not easy to determine where she is from. Liu Jinghui pondered for a while, drank tea, and added: "Do you want to visit all the way from the place where the corpse was found?"

The cost of visiting is much lower than screening. As far as this case is concerned, it is basically to nearby villages to ask if there are any missing persons recently, if you have seen someone, and if there are any abnormal situations.

The key lies in the scope. If you go upstream for dozens of kilometers, it is easy to say, but if you go upstream for hundreds of kilometers, the workload is too large. Because it is impossible to visit only the village closest to the river, but the villages deeper in the mountains are poorer. Furthermore, poverty has no standard. How poor is poor?

"Let's visit first. At the very least, we have photos. If we visit a few more villages, maybe we can have a harvest." Jiang Yuan thought about it and made a decisive decision. ===== CHAPTER 898 =====