Wang Chuanxing and Shen Yaowei returned together holding several large boxes of evidence. Wang Chuanxing put the objects into the cabinet and said at the same time: "The conditions of Zhengguang Bureau are really good. That evidence room is better than our new office."
powerful."
"It can't be compared with those in Beijing. Moreover, they are just bigger, and the decoration is just like that. Furthermore, the evidence room does not have any equipment. It is just a matter of ordering cabinets and buying a few computers." Huang Qiangmin was sitting in front of him,
He curled his lips.
The capital's infrastructure cannot be compared to that of a small county. Regardless of the high housing prices in the capital, when various departments build public facilities, it is still easy to achieve their ambitious goals. For units like Zhengguang Bureau, the normal annual funding is
More than 2 billion, it is enough to pluck out the hair on your legs that is thicker than your waist.
Wang Chuanxing was seconded to Ningtai County from the provincial capital. He was not that afraid of Huang Qiangmin. He smiled and said: "The evidence room has constant temperature and humidity. If I were to become an evidence, I would live like this."
.”
"If you become an evidence, you will also go to the ice coffin of the anatomy center in the capital." Shen Yaowei was very sensible, and smiled at Huang Qiangmin and said: "The advantage of the capital is that the evidence is well preserved. I guess Captain Jiang can
Mentioned a lot of pollen.”
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. You can ask someone to help you with this job, but the case is serious, and the most favorable evidence at present is the pollen on the clothes. So it is the first time to pick up the pollen.
Jiang Yuan was too lazy to do his job to others.
To be honest, teaching a forensic doctor who has never done similar work, and then watching and doing it for a while, answering some questions and solving some small episodes in the experiment would probably be more tiring than doing it 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 breath was confused for a few seconds, and he put on the mask in a daze, and then said: "I'll sit with you for a while, I have nothing to do now. I'll check my phone, and then we'll find a delicious restaurant. In the evening
Go eat something good. Use public funds. Come from Zhengguang 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 be of much help, we will 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 building an 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 my tears dry."
Jiang Yuan had already 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 types of detergents, friction, time factors and environmental factors may cause some pollen to lose its adhesion or disappear completely.
However, in general, pollen is still a very strong evidence. It is not like blood or hair, which is a small carmine that cannot be made into acid or alkali. Pollen has survived many centuries of mass extinction environments. What about volcanic ash?
It's over, deep wells are frozen, floods and beasts, beauties and stockings, hairy parasites, naked microorganisms, and nuclear radiation from across the ocean are all nothing in the eyes of pollen.
Under the microscope, a lot of pollen looks like a fortress, with long and tough thorns, thick muscles and bones, and densely packed fine mesh. If you magnify it tens of thousands of times, it looks like a space fortress with a sense of future technology. What do you think?
Why do you look so hard to mess with?
If cartoonists are stuck, search for a few pollen illustrations and change them. It is much more powerful than making up a random battlestar. The pollen pattern looks a bit yellow, and you can still draw it to the next level.
"Compositae pollen." Jiang Yuan shook his neck and began to write down 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 checking his cell phone next to him, immediately sat over and asked: "Chrysanthemum?"
"Asteraceae is not a chrysanthemum." Jiang Yuan continued to look at the microscope. While looking, he said subconsciously: "If we classify pollen according to pollen, there are three types of pollen in the Asteraceae family, sunflower type, Senecio type, and spring type.
It’s chrysanthemum-shaped. This one should be sunflower-shaped.”
"In other words, there were sunflowers at the crime scene?"
"It's not that simple. Because there are many kinds of sunflower-type pollen, including the sunflower family, the adenophora family, the aster family, the heliotrope family, the calendula family, in addition, the inula family and the Seneca family also have this
Various types of pollen..." Jiang Yuan was talking about tribes, and there are about 30 genera below, which are very complicated.
"It's not that simple. Because there are many kinds of sunflower-type pollen, including the sunflower family, the adenophora family, the aster family, the heliotrope family, the calendula family, in addition, the inula family and the Seneca family also have this
Various types of pollen..." Jiang Yuan was talking about tribes, and there are about 30 genera below, which are very complicated.
Most people who engage in forensic botany basically give up after hearing this.
Huang Qiangmin was also confused after hearing this, and frowned: "Just tell me if there are any sunflowers at the scene."
"Yes." What Jiang Yuan found was indeed a pollen from the genus Helianthus.
This judgment can drive normal botanists crazy. Sunflower-type pollen has similarities and differences, so it is not easy to judge. In fact, it should be very difficult.
Jiang Yuan came to a conclusion without consulting any information, which was equivalent to casting a spell instantly without a magic book. Unfortunately, there were only Muggles present, and no one could understand it.
"When Victim No. 3 was discovered, there were no sunflowers at the scene. So, we are already approaching the first scene?" Wang Chuanxing turned over, already feeling emotional.
"It's still far from positioning." Jiang Yuan raised his head and glanced at Wang Chuanxing, then started pinching off another piece of pollen.
Wang Chuanxing shook his head: "Even so, it is already a breakthrough. Taking into account other considerations, such as the location of the victim's mobile phone on that day, the testimony of eyewitnesses, etc., maybe the first scene can be found."
Indeed, practicing 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. Moreover, 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.
Not to mention the limited accuracy, a lot of information may be lost.
In addition to solving the case but not solving it, the document work must be done well. This is also one of the foundations for Jiang Yuan to rely on marking papers to solve the case.
Soon, Jiang Yuan scanned the pollen of willows and pine trees, and then camellias and clematis...
However, the most abundant pollen is sunflower pollen.
Jiang Yuan picked up the moment when he was a little doubtful about life. He suddenly raised his head and said: "Sunflowers are insect vectors."
"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. The places found will only be useful if they match them one by one.
Generally speaking, the requirements for forensic botany are still very strict, but when used in detection, they are also a bit unreasonable.
Although the murderer organized the crime scene like a professional, how should he deal with forensic botany?
Friendly recommendation: "Being a doctor, you don’t have to be too normal"
