Chapter 403: Two-way Rush

Noon.

It was the time when the sun was strongest. Wang Zhong suddenly took out a 10-centimeter-long red peach wood sword from his neck, held the sword hilt in his hand, formed a bow stance with his legs, and "haha" stabbed it out.

Jiang Yuan, who was sitting in front of the computer, stopped his hand touching the skull and looked at Wang Zhong in confusion.

"Captain Wu taught it, saying that after touching a corpse, returning to the office, etc., it is best to drive it away, and also to deter the monsters and demons around, let them know that we are not to be messed with. Every day at the time when the Yang energy is strongest, the effect of sword dancing is the best. I checked the solar azimuth and altitude angle." Wang Zhong said seriously, and the peach wood sword in his hand had not stopped.

Jiang Yuan believed that this set of Wang Zhong's was really taught by his master Wu Jun. Ordinary people can't play so... stylish.

Jiang Yuan only said: "Then let's keep the sound small, don't affect people in other offices. We are still in Longli County."

"The sound is the Qi of the Dantian. Then it's fine if I don't make a sound, the effect might be a little worse." Wang Zhong was still very obedient, closed his mouth, and continued to exercise hard with his whole body.

Jiang Yuan looked twice and felt it was quite good. Those who do trace examination also sit in front of the computer often, sitting for a whole day. Exercising is still good for the body. There is a slight doubt...

Jiang Yuan then asked: "How did you learn this from him?"

"I didn't apprentice, just followed and learned a little, equivalent to a registered disciple." Wang Zhong looked at Jiang Yuan carefully, and added: "Captain Wu only taught me some mass technology."

"Alright." Jiang Yuan felt that Wang Zhong shouldn't understand what mass technology is. However, doing skull reconstruction was enough to keep him busy, so let Wang Zhong jump if he wants to.

Wang Zhong continued to jump.

About 81 times, which is about 18 times a group, a total of five groups, he jumped until his forehead was sweating, before stopping.

Sitting back in the chair, Wang Zhong panted and put the peach wood sword back on his neck, and whispered: "Brother Jiang, actually, what Captain Wu taught makes sense. I practiced for a while and felt that my body was better."

Jiang Yuan thought, you are a person who doesn't exercise daily, suddenly increasing such a large amount of exercise, the body definitely feels comfortable.

Wang Zhong looked at Jiang Yuan's expression, recalled what Wu Jun said

, silently shook his head, lit a stick of incense on the table, and explained: "Captain Wu gave it."

Seeing that Jiang Yuan didn't object, Wang Zhong got up again to boil water, make tea, open the window for ventilation...

After a circle, he saw a few cars with Changyang license plates coming downstairs.

"Brother Jiang, it should be people from the Provincial Department." Wang Zhong stood by the window and watched for a while, then said: "I feel like Wu Wu Fa Yi Zhai is here? Brought quite a few people."

It was already known in advance that the Provincial Department was going to send people, and it was not strange that Wu Wu Fa Yi Zhai came over.

Nowadays, Wu Wu Fa Yi Zhai is still a flower of the Shannan Provincial Department, and he is inserted wherever needed. When looking for Liu Jinghui, he was dispatched. The 805 National Highway abandoned corpse case in Luyang City was also initially identified by Wu Wu Fa Yi Zhai.

Of course, it can also be said that the identification overturned by Jiang Yuan previously was done by Wu Wu Fa Yi Zhai.

Jiang Yuan stood at the door, still holding the skull in his arms.

"Wu Wu Fa Yi Jiang, we are here to see you." Wu Wu Fa Yi Zhai's gaze swept across Jiang Yuan's face and landed on the skull, saying casually: "Middle-aged woman, about 100 catties?"

Judging gender and age from the skull is slightly more difficult than judging from the pelvis, but it is not too difficult. However,

being able to see it at a glance like Wu Wu Fa Yi Zhai still proves his eyesight and confidence.

By comparison, judging fat and thin is even simpler. Because fat particles will leave traces on the outermost bone layer of the skull, the fatter the person, the rougher the outer layer of the skull, while the skull of a pure thin person is exceptionally smooth.

The skull Jiang Yuan was holding looked smooth, so there is no need to say, the body fat rate will not be too high. Plus the woman's

body fat rate itself is much higher than that of men, so her weight is at most just over a hundred catties.

Jiang Yuan was not surprised that Wu Wu Fa Yi Zhai could see it. The latter was more of a pleasantry. Jiang Yuan nodded and said: "It's about like this, a woman around 34 years old, has given birth, her weight is relatively light, she should have worked hard all year round..."

"I have an impression." Wu Wu Fa Yi Zhai nodded. He had seen this corpse before.

The forensic doctors who came along followed into the office one after another.

This office is an office of the Longli County Criminal Science Detachment, temporarily vacated for Jiang Yuan. The corpse and the dissection room are in the funeral home, which is not only far away, but the temperature is also very low, not suitable for long-term office work.

Wu Wu Fa Yi Zhai brought a total of 8 forensic doctors, all of whom are grassroots forensic doctors currently in training in the Provincial Department, mainly some young forensic doctors from the district public security bureaus of cities.

In terms of level, the level of the district public security bureau and the county public security bureau is similar, and they also belong to the grassroots frontline, belonging to the first responsible person facing the corpse. However, it is precisely because there is a lot of business and work, and there is very little time for grassroots forensic doctors to improve themselves. Especially in the case of independent work, it is even more difficult to improve.

In some cities, the solution to this situation is to send forensic doctors from the city bureau to help or supervise or teach, such as the system of Qinghe City. Wu Wu Fa Yi Wang Lan also embarked on the road of daily business trips because of this.

But some cities will have different ideas, especially when the city bureau forensic doctors are not capable, or the city bureau forensic doctors are promoted to leadership positions, they cannot circulate, then the technology of the forensic doctors in the county bureau or district bureau below will be deformed over the years.

The Provincial Department holds some training classes every year, as well as various training meetings. For those who are interested, it can be considered a channel for skill improvement, but skill improvement usually does not bring material benefits.

Several young forensic doctors entered, curiously observing Jiang Yuan's office, and naturally began to aim at Jiang Yuan's computer screen.

The complexity of 3dsler that Jiang Yuan is using is quite high. If it weren't for the skills given by the system, it would be normal to spend a few months learning this set of systems.

The domestic police k also has practical cases, which is also software that everyone can see daily. By comparison, not complex enough means not detailed enough.

"You really started skull reconstruction." Wu Wu Fa Yi Zhai clicked his tongue twice and asked again: "Must skull reconstruction be used?"

"Not necessarily, I haven't tried other methods." Jiang Yuan said the truth, he just wanted to use this move.

Wu Wu Fa Yi Zhai smiled, looked at the skull again, and said: "If it can be done and the source of the corpse is determined, it is easier than screening."

If skull reconstruction is not used, the most commonly used method is first to find the source of the corpse according to the attachments on the corpse, that is, clothing, accessories, etc. If it doesn't work, you have to use corpse dissection or forensic anthropological technology to find the source of the corpse. And no matter which one it is, it is inseparable from large-scale screening.

Skull reconstruction is completed. According to the truth, it is also necessary to screen, but looking at the face-to-face inquiry-style screening, compared to finding a 35-year-old limping former dance athlete, it is still easier.

Most importantly, the accuracy of face-to-face screening is high, and it is not easy to miss.

Screening, the most feared thing is omission. This is also the reason why Jiang Yuan must have Xu Taining come out during the 805 case.

In other words, screening is either expensive or risky. No matter which one, it is slow.

Moreover, the expensive version is not without risks.

However, in general, the advantage of using skull reconstruction to find the source of the corpse is still very obvious. The effect is good, the comprehensive cost is low, and the only defect is that there are few people who know it.

Wu Wu Fa Yi Zhai naturally doesn't know either.

To talk about it, this thin-faced, wooden-faced little old man, but if it comes to the number of corpses dissected, he should be the leader in Shannan Province. Especially in the early years, when there were very few forensic doctors in various places, Old Zhai often went to dissect corpses from county to county.

However, skull reconstruction, which requires compound talents, was finally not participated by Wu Wu Fa Yi Zhai.

"Where is the progress now?" Wu Wu Fa Yi Zhai was slightly concerned. Even if he didn't know, he was still willing to understand the technology of the new era.

Jiang Yuan then sat in front of the computer and said: "Currently, edge detection is being done. Because the Laplacian operator is sensitive to high-frequency signals, I consider filtering the image with a low-pass filter before the Laplacian operator filtering. I am currently choosing Gaussian low-pass filtering, using Gaussian operator and Laplacian operator to form a single log operator..."

After Wu Wu Fa Yi Zhai finished listening, he got up and said: "Give me that case file. The bones have all been photographed, right?" ===== CHAPTER 404 =====

"What stage are you at now?" Wu Wu Fa Yi Zhai asked with a hint of concern. Even if he couldn't master it himself, he was still willing to learn about new-era technology.

Jiang Yuan then sat down in front of the computer and said, "Currently, I'm performing edge detection. Because the Laplacian operator is sensitive to high-frequency signals, I'm considering applying a low-pass filter to the image before the Laplacian filtering. I've chosen a Gaussian low-pass filter for now, using the Gaussian operator and the Laplacian operator to form a single LoG operator..."

After listening, Wu Wu Fa Yi Zhai stood up and said, "Let me see that file. You've taken photos of all the bones, right?"