civil forensic

Chapter 570

Chapter 570

Changyang City Criminal Center.

Jiang Yuan directly took the clothes he brought back and took the high-speed train to Changyang City.

These clothes have been washed and rummaged several times. It can be said that it is very difficult to find evidence of the level of hair from the fibers of these clothes. Even if they are found, most of them are contaminated outside the case. human hair.

Jiang Yuan's expectations are placed on dander, especially on the few woolen overcoats, woolen cashmere sweaters, sweaters, fur hats and scarves he brought back this time.

Although these clothes have also experienced many times of rummaging.But it is not suitable for washing with water, and it does not need to be cleaned frequently. The Liu family did not dry clean it after Liu Limin's death, so it is the most promising place to find dander.

Secondly, there is a certain space in the gaps between these wool and woolen products to accommodate dander, especially when two people are in close contact, such as hugging, etc., dander may penetrate deep into the fiber , and only in this way, the dander found is the most valuable.

This difficulty can be said to be hell level.

So, even though they were facing a basket of clothes, half of the technicians at the Changyang City Criminal Center began to tremble.

The other half won't do it.

Wan Baoming still insisted on bringing people together.

Jiang Yuan stood in the middle of the laboratory and said: "Everyone has worked hard, this time the task is relatively heavy, to extract as much dander as possible from the clothes, I'd rather be slow, don't miss it."

Jiang Yuan didn't plan to do it alone, even though there were only twenty pieces of clothes, hats and scarves, two of them were exhausted doing it together.

The workload of doing this may be greater than the workload of making pollen, which is similar to the concept of trace physical evidence.

At this stage, if you want to make the pollen case easier, you often use the method of washing to wash out the pollen on the object.Because pollen is resistant to acid and corrosion, even if it is ravaged by a washing machine, the pollen evidence will only be rinsed in water, and then find a way to extract it with a centrifuge.

If the dandruff is done like this, it's okay if the amount is large, but if the amount is small, the loss will be too great.

Wan Baoming had chatted with Jiang Yuan in advance and knew that it was a job of finding a needle in a haystack, so he specially emphasized: "The case is very important, everyone cheer up, let's divide into groups A and B, cross check between the two groups, and the group with the most mistakes and omissions will be the one for dinner." Time to drink three cups!"

"For dinner, I'll treat everyone to a roasted whole lamb, enough craft beer, and Moutai." Jiang Yuan activated his banknote ability.

The technicians cheered up at once.These days, no one lacks a little bit of oil, but it is still very happy for everyone to have a lively roast whole lamb, drink some Moutai and beer.

Furthermore, this is still a favor for Ningtai Jiangyuan, and people have treated them kindly, so they are naturally willing to roll up their sleeves and do it.

Among other things, it would be great to make a good impression on Ningtai Jiangyuan, ask for advice later, or have any technical cooperation.

The technical bigwigs may be a little less powerful than the political bigwigs, but as long as the technical bigwigs don't die, they can continue to exert their residual heat, which is also quite bullish.

The Changyang City Criminal Center was originally the largest criminal science and technology team in the province, larger than the provincial department.These days, those who don't know trace physical evidence are doing other projects and tasks, and those who know trace physical evidence are all in the battle, and the laboratory is also bustling.

Jiang Yuan also called Huang Qiangmin, and used the money owed by the Changyang Municipal Bureau to help the Changyang Municipal Bureau buy a batch of head-mounted microscopes before distributing them to everyone.

A group of people put on the head-mounted microscopes and put themselves into the task of searching for skin flakes in the crevices.

The skin flakes that were captured were sent directly to the laboratory to start PCR.

DNA identification through dandruff, especially dandruff, is a technology developed by the ministries and commissions around 08. It has been 10 years since it was promoted to the Shannan Provincial Department, and it has been extended to various city bureaus and county bureaus for almost 12 years. Years and years ago.

Before that, if the criminal police didn't pay special attention to this knowledge, they wouldn't collect dandruff at all.

Knowledge update is a very long process. For the criminal police, not to mention such a heavy daily task, there is also a lot of knowledge that needs to be updated. Today I heard the technical explanation of the smart door lock, but the day after tomorrow it is not the turn of the sixth explanation of DNA. It is also normal.

From this point of view, it is still possible to find the boyfriend's dandruff from the victim's clothing.

It is very eye-catching.

A group of technicians started working, and soon there was no sound.

On the other side, Xu Taining was also very tired.

There is one bureau in three places, and there is one department and one department above. Although the latter two appear in a cooperative manner, they also have requirements, and they have to report from time to time. Xu Taining himself is a senior police chief sent by the provincial department. The requirements for him are even higher.

Furthermore, it is not enough for the report to be just an empty description, but also to have substantial data.

Even if the leader just listens to it, data information is indispensable.

And when it comes time to pay money and people, it is becoming more and more difficult for the three places that pay the most money to cooperate. The provinces, departments and ministries and commissions only care about matching. It doesn't sound good.

At this time, if it is an ordinary leader, it may be necessary to seek support.Xu Taining is not like this, he always uses PUA.

"Huo Shi has already paid out to 3%. If you add more, I will finish the report."

"Yes, Huoshi joined, and you too? Well, then you are still ranked first. Don't worry, the report will remain the same."

"Well, you must have specially marked it here. In fact, I suggest replacing funds with people. It is more cost-effective to change now, so that you don't want to change people later, and the price comparison has changed."

"It's okay to count the laboratory time. You can make a bill later, but you have to make up for the funds... Hey, it's fine to fold it back into the laboratory funds, but now everyone has paid it. You didn't pay it..."

"Hey, the laboratory funds of the Changyang City Bureau have been paid, look at your side..."

As far as task management alone is concerned, although there are several lines to manage, Xu Taining doesn't find it too difficult, but the PUA units...in fact, it's not too difficult.

Standing in the meeting room, Xu Taining danced like a fish in water and his voice was like a bell. He kept waving his arms and shouting loudly, like a football coach, as if everyone was being pushed away by him.

But the units are really being pushed away by him.

The next night, a clue was screened many times and finally became the only one.

Xu Taining checked again and again, and then he didn't even care about the leaders of the provincial department, so he couldn't wait to call Jiang Yuan.In the last two cases involved in Jiang Yuan, Xu Taining had made a lot of efforts but returned without success. The aggrieved heart was beyond words, and at this moment he finally felt elated.

"Team Jiang, we may have found someone." Xu Taining's voice was so loud that it could pass through the glass window and be heard outside the meeting room.

"Found it? How did you find it?" Jiang Yuan was also inexplicably surprised.

Satisfied, Xu Taining said, "It's easy to say. The list of real estate transactions in the three places and one bureau was pulled out. In the three years before the incident, the number of people who bought houses with cash in the market was only four figures. Then talk to the victim Liu Limin. After comparing the transfer records in the list, one person will come out."

He said it easily, but considering the effort of leading the clues all the way, the county bureau alone might not be able to last this moment.

Xu Taining was full of flair: "This person's name is Wang Shiji. It's a coincidence. His family is really a railway family. People from Changyang City, uncles, brothers, uncles and grandpas are all on the railway..."

"Are you arrested?" Jiang Yuan asked hurriedly.These details alone are enough to bring Wang Shiji back for interrogation. "

"Let's go right away." Xu Taining laughed twice, hiding his embarrassment.

This time, he called Jiang Yuan immediately, so he didn't have time to order the arrest.

After hanging up the phone, Xu Taining immediately called Wu Junhao and asked his bald strike team to set off and go straight to Changyang City.

Then, Xu Taining called the Provincial Department and the Changyang Municipal Bureau.

When Wu Junhao's bald strike team arrived and joined the police from Changyang City Bureau, it might have been late at night, but no one raised any objections.

(End of this chapter)