civil forensic

Chapter 683 Breakthrough
"The clothes are back."

Wang Chuanxing and Shen Yaowei returned together holding several large boxes of evidence.Wang Chuanxing put the objects into the cabinet and said, "The conditions of Zhengguang Bureau are really good. The evidence room is better than our newly built office."

"It can't be compared with the ones in the capital. Besides, they are only big, and the pure decoration is the same. Besides, the evidence room has no equipment, just order cabinets and buy a few computers." Huang Qiangmin was sitting in front of him, I curled my lips.

The infrastructure of the capital is incomparable to a small county. Regardless of the high housing prices in the capital, when various departments build public facilities, the ambitious goals are still easy to achieve.Units like the Zhengguang Bureau have a normal budget of more than 20 billion a year, and they properly uproot those whose legs are thicker than their waists.

Wang Chuanxing was seconded from the provincial capital to Ningtai County, so he was not so afraid of Huang Qiangmin, and said with a smile: "The evidence room has constant temperature and humidity. If I become evidence, I would like to live in such a room." .”

"If you become evidence, you will also go to the ice coffin at the autopsy center in the capital." Shen Yaowei is very sensible, and smiled at Huang Qiangmin, saying: "The advantage of the capital is that the evidence is well preserved. I guess Team Jiang can do it." A lot of pollen was mentioned."

When he said this, several people looked at Jiang Yuan who was sitting in front of the experimental table.

There is a microscope on the experimental table, and then there is a plate of tweezers and the like.It's okay to ask someone to help with this job, but the case is serious, and the most favorable evidence at present is the pollen on the clothes. Jiang Yuan didn't bother to use his hands to pick up pollen for the first time.

To be honest, teaching a forensic doctor who has never done similar work, watching and doing it for a while, answering some questions and solving some small episodes in the experiment, is probably more tiring than doing it by himself.

"You don't know what you can find yet. You will know when you see it. Bureau Huang, please rest. This is not a job that can be done in one day." Jiang Yuan spread out various utensils and took out the first item from the evidence bag. A stench wafted out of the clothes after several years, and it was stronger than usual, like farts that had been covered for a long time, like gas but not air, solid but not solid, soft and hard...

Huang Qiangmin's breathing became disordered for a few seconds, he put on the mask in a hurry, and said: "I will sit with you for a while, I have nothing to do now. I will check my mobile phone, and then we will find a delicious restaurant. Go eat something good. Use public money. It’s from the Bureau.”

When he said this, Wang Chuanxing and Shen Yaowei looked at each other and said hurriedly: "We will stay too. Although we can't help much, let's listen to Captain Jiang and Political Commissar Huang's greetings."

Huang Qiangmin smiled and took out his mobile phone: "By the way, let me show you the newly built detention center of our bureau. We are still working on the underground pipe network. Look at the construction standards, which means that this video cannot be made public, otherwise the prison will be broken. I will cry all my tears dry."

Jiang Yuan had seen it before, couldn't help but smile, and then focused on the microscope.

As he said just now, you won't know what you can see until you see the evidence.

Rain, various detergents, friction, time and the environment can all cause some pollen to lose its hold or disappear altogether.

Overall, though, the pollen is pretty strong evidence.It's not like blood and hair, which are little kalami, which can't be acidic or alkaline. Pollen has survived the mass extinction environment of many centuries.Volcanic ash, deep well ice, floods and beasts, beauties and stockings, hairy parasites, naked microorganisms, and nuclear radiation from across the ocean are all not worth mentioning in the eyes of pollen.

Under the microscope, many pollen are almost like a fortress, with long and tough spines, thick bones, and densely packed fine nets. If it is magnified tens of thousands of times, it looks like a space fortress with a sense of future technology.No matter how you look at it, it's not easy to mess with.

If the manga writers get stuck, search for a few pollen illustrations and change them, which is much more powerful than making up Battlestar Space.Looking at the kind of pollen pattern that is a bit yellow, it can also be drawn to the inside.

"Compositae pollen." Jiang Yuan shook his neck and started recording in his notebook.
There wasn't much pollen on the clothes, so Jiang Yuan picked out the obvious ones first.

Huang Qiangmin, who was still swiping his phone next to him, immediately sat over and asked, "Are you a chrysanthemum?"

"Asteraceae is not a chrysanthemum." Jiang Yuan continued to look at the microscope, and while looking at it, he said subconsciously: "If you classify according to the pollen, there are three types of pollen in the Asteraceae family, sunflower type, Senecio type, and spring type. It’s a yellow chrysanthemum. This one should be a sunflower.”

"That means there were sunflowers at the crime scene?"

"It's not that simple. Because there are many kinds of sunflower pollen, including the sunflower family, Zealan family, aster family, heliotrope family, and calendula family. In addition, the inula family and Senecio family also have this kind of pollen. Different types of pollen..." Jiang Yuan was still talking about family, and there are about 30 genera below, which is very complicated.Most people engaged in forensic botany basically gave up when they heard this.

Huang Qiangmin also got dizzy when he heard it, and his black face wrinkled: "Just tell me if there are sunflowers at the scene."

"Yes." What Jiang Yuan found was really a piece of sunflower pollen.

This judgment can already drive normal botanists crazy.Sunflower-type pollen has both similarities and differences, and it is not easy to judge.In fact, it should be very difficult.

Jiang Yuan gave a conclusion without looking up any information, which is equivalent to casting a spell instantly without a magic book. Unfortunately, the scene was full of Muggles, and no one understood it.

"When victim No. [-] was discovered, there were no sunflowers at the scene. So, we're already approaching the first scene?" Wang Chuanxing turned around, already feeling emotional.

"It's still far from positioning." Jiang Yuan looked up at Wang Chuanxing, and began to pinch another pollen.

Wang Chuanxing shook his head: "Even if this is the case, it is already a breakthrough. Considering other aspects, such as the location of the victim's mobile phone that day, the testimony of eyewitnesses, etc., we may be able to find the first scene."

Indeed, doing forensic botany in the city is not as enjoyable as doing it in the wilderness.

But from another perspective, the sources of pollen in cities are also very single. Even pollen from common plants like sunflowers is not always available.

Jiang Yuan has the skills at hand, so he will not use such rough methods. Besides, the pollen on the clothes has already been tested. This time, all tests must be completed. Otherwise, if the case cannot be successfully solved in the future, the second test will be carried out. Yes, not to mention the limited accuracy, a lot of information may be lost.

Those who solve the case but fail to solve it also say that the documentation work must be done well.This is also one of the foundations for Jiang Yuan to rely on reading papers to solve the case now.

Soon, Jiang Yuan swept willow and pine pollen, and then camellia and clematis...

However, the most pollen is sunflower pollen.

Jiang Yuan picked up a moment of skepticism about life, suddenly raised his head, and said, "Sunflowers are insect-borne."

"Huh?" Huang Qiangmin and others present did not react.

"Wind vectors spread over long distances, while insect vectors spread over short distances. If it's a sunflower field, there will basically be beehives next to it." Jiang Yuan said while taking notes.When the time comes to find the place, it will be useful only if it matches one by one.

Generally speaking, the requirements of forensic botany are still very strict, but when it is used for detection, it is also a bit outrageous.

Although the murderer looks like a professional in arranging the crime scene, how should he deal with forensic botany?
　Friendly recommendation: "Being a doctor doesn't have to be normal"

　　


(End of this chapter)