Chapter 712 Practical

Chapter 712 Practical

The autopsy room, covered with silver-white tiles, was crowded with forensic doctors in white coats.

Senior forensic doctors such as Zeng Lianrong and others were sitting on the dissecting table next to them. Younger forensic doctors such as Zhan Kan were either lying low in the front or stretching their necks by stepping on the back.

The big, hot iron pot was still smoking, filling the room with a strange aroma among the stench.

The forensic doctors in white coats were also steaming hot and breathing vigorously.

Jiang Yuan picked up Bai Sensen's skull and began to circle it to take pictures and measure it.

Because there were many colleagues present, Jiang Yuan also introduced while taking pictures: "The preliminary work for skull recovery is very tedious. The first thing is to record some characteristic points and check whether there are any obvious traces. This is similar to what we usually do. Usually For example, it means surgical marks, teeth, remaining attachments, scars, etc..."

"If the victim's information can be found through other means, skull recovery will naturally not be necessary. After all, it takes a very long time."

"After taking pictures... you can actually use a CT scan, just like skull repair in the hospital, but we don't have such luxury equipment, so we just take pictures. Then, we label the skull."

While Jiang Yuan was talking, some of the forensic doctors beside him were listening and some were taking notes. They were all very serious.

When it comes to learning cranial reconstruction, most forensic doctors really don't necessarily have such thoughts - of course, deep down, everyone must be looking forward to learning it.

Especially young forensic doctors, they are more or less looking forward to it, just in case they have this hidden talent. After all, I had never had the opportunity to experience cranial reconstruction before.

But most forensic doctors just take a look, gain insights, and get some relevant information by the way.

Here in the capital, awesome technologies and awesome experts are everywhere, and everyone doesn’t necessarily have to follow them.

However, it is still necessary to broaden your horizons. At least know when to ask for help and what to do before asking for help.

Jiang Yuan also thinks this is good.

In fact, forensic doctors also need to cooperate. The content of forensic science is so complicated that it is impossible for normal humans to learn it all. Therefore, mastering the knowledge you can master and knowing how to cooperate with colleagues is the most practical mode of operation.

Everyone's goal is to bring the criminals to justice, and that's all it takes to achieve this goal. If the forensic doctors here in the capital know more about skull restoration techniques, it would be a good choice for them to cooperate in the future.

The cranial reconstruction surgery at LV5 is not as difficult as it was at LV4 or even early LV3.

"I'm going to start labeling the skull now."

Jiang Yuan said, taking out a small box and opening it. It was full of small white cylinders. One end of the small cylinder has numbers written on it, and the other end is peeled off to reveal the single-sided tape.

"The numbers marked here are what we think is the thickness of the soft tissue on the deceased's face. For example, for this deceased person, I gave the upper end of the upper lip 5 mm, and the lower end of the upper lip 6. Then, the upper end of the lower lip was 7, and the lower end of the lower lip was 8 .”

As Jiang Yuan spoke, he gently pressed 5678 four white cylinders onto his skull.

"Why is this number? How to judge it is more complicated. It is also the first step in the cranial reconstruction surgery to test us." Jiang Yuan paused and said: "The easiest way is to look up the thickness of the facial tissue. The data."

"However, if you want to be more accurate, you must first make an anthropological judgment on the skull. For example, her race and gender, this is the most basic. If it is a black person, the lips will naturally be thicker. If it is There are differences between yellow people and different ethnic groups.”

"In addition, the country has a large area and a complicated history. People from different regions or ethnic groups also have different thicknesses of facial tissue. For example, people from ancient North China are characterized by thick lips, single eyelids, high flatness, and wheat-colored skin. People from ancient North China are characterized by thick lips, single eyelids, high flatness, and wheat-colored skin. As for humans, they are mainly distributed in what is now North China and Northeast China."

"People in ancient South China also had thick mouths. They used to be mainly distributed from the lower reaches of the Yangtze River to Lingnan..."

"The thickness of the upper and lower lips of ancient South Chinese people was the same. The lower lips of Manchus were slightly thicker, but the overall thickness was thin, the Han people were medium, and the Zhuang people were thicker..."

Jiang Yuan said a few words casually, stopped, and then said: "Of course, the problems encountered by forensic anthropology in various countries are similar. Everyone is multi-ethnic or multi-ethnic. How to characterize it is easy. Encountering under-researched situations.

"The first step is to determine the ethnicity and race based on the skull." Zeng Lianrong was considered an expert in forensic anthropology, and he said this in a serious tone at this time.

The other forensic doctors nodded with frowns.

This first step is already beyond the scope of ordinary forensic medicine.

Determining ethnicity and race based on skeletons is inherently difficult in the work of forensic anthropology. If the skeleton is replaced by a simple skull, it will be as difficult as triploidy.

It’s no secret that forensic anthropology’s favorite bone is the pelvis. Even a slightly basic forensic doctor can determine gender based on the pelvis.

Secondly, judging height based on long bones is also a scoring question.

Therefore, the combination of pelvis-gender, long bones-height is a fig leaf for a forensic doctor in anthropology.

Of course, this is under the premise that there are only two genders.

In practice, there are still some forensic doctors who cannot tell the gender even if they hold the pelvis because the pelvis is damaged or the level is not good enough.

Clearly, human differences extend beyond just bones.

Furthermore, it is much more difficult to make judgments using skulls. Without flesh, many forensic doctors find it difficult to make accurate judgments.

Because this is not something that can be learned simply by reading a few books. The forensic examiner who does the appraisal must sign the appraisal report. It is necessary to inform the criminal police officers of their judgment in clear and unmistakable language.

If this is an exam, a 90% accuracy rate is far from enough. Even a 95% accuracy rate will only bring ridicule.

When hundreds of police officers from the overall situation stayed up for three days and three nights, walking dozens of kilometers to conduct investigations, they finally discovered that the forensic doctor had even mistaken whether the body was male or female. No one would reveal it just because it was 5%. Be considerate and polite with a smile.

Jiang Yuan quickly filled the skull with small white cylinders, and then took pictures.

This time, the shots were more detailed and slower.

Zeng Lianrong, who was sitting on the dissecting table next to him, suddenly felt a little uninterested and said: "Usually it takes a few days to mark the thickness of the face. I think some people do it in two or three weeks."

"Well...then if the judgment is not accurate, plus looking up books and data, it may be necessary." Jiang Yuan put down the camera and nodded.

He also came from LV3, and he was the first to do a cranial reconstruction surgery, and it took him a month to do it quickly and slowly.

But now he is at LV5. To put it bluntly, he can now write a book like "Practical Skull Restoration Technique" and use it as a teaching material.

Coupled with the characteristics of the skill itself, one of the advantages is that there is no need to look up information.

It only caused a certain psychological impact on forensic doctors like Zeng Lianrong, who relied on his genius brain and hard work.

"Then you just mentioned ethnicity, how do you judge her ethnicity?" Zeng Lianrong asked a difficult question.

Jiang Yuan moved Bai Sensen's skull to another position to show his characteristics, and said: "My judgment is that the genes of Gu Qiang, Miao Yao, and Su Shen are mixed together. In fact, we can also take DNA to check. , as a reference. But in terms of skull restoration, this kind of DNA traceability is not accurate enough, and the representation is inconsistent, so it needs to be compared."

"This requirement is too high." Zeng Lianrong's eyelids jumped as he listened to Jiang Yuan's answer.

Jiang Yuan said "Yes": "It's a bit complicated."

His skull restoration technique has just been upgraded to LV5, so he can feel the increase in complexity.

It was also about skull restoration, but he hadn't considered it so carefully before. Not to mention comparing and judging nations.

Zeng Lianrong sighed and shook his head helplessly.

Jiang Yuan could only lower his head and continue working.

After completing the photography work, it is necessary to import the data and start making two-dimensional and three-dimensional images on the computer.

In the early years, these were actually done manually, which took longer and cost more. The requirements for forensic medicine are mainly sculptural and aesthetic.

Nowadays, these steps have basically been replaced by computers, but the threshold will not be lowered, but the computer's operating capabilities will be increased.

At this point, Jiang Yuan was still doing it well, but Zeng Lianrong could no longer understand it.

Other forensic doctors have already reached the stage where they cannot understand. Perhaps everyone felt relaxed when Jiang Yuan put up the small white cylinder sign, but after this step was completed, the work suddenly became unfamiliar.

Some forensic doctors left quietly, and there were also new forensic doctors who joined the tour, but in total, more of them left and fewer stayed.

Everyone has work to do, and most people are satisfied with just broadening their horizons.

Jiang Yuan didn't explain any more when he reached this point.

Without the foundation of LV2 cranial reconstruction surgery, I probably wouldn’t be able to understand it very well.

Jiang Yuan also entered into immersive work.

After a long time, Jiang Yuan raised his head and saw a face flashing past him quickly.

"Forensic doctor Zhan." Jiang Yuan looked around and found that the anatomy room that was crowded just now was deserted and only Zhan Guan was alone.

"I just want to see the software you use, and I don't mean to peek." Zhan Chan quickly explained in a low voice.

Jiang Yuan smiled and asked casually: "Are you interested?"

"A little bit, but I'm not very good at using computers. I was just wondering if it would be easier to understand if I sketched by hand."

"Of course, you can sketch?" Jiang Yuan was a little surprised.

"I learned a little bit when I was in school. I also studied sculpture for two years." Zhan Gong smiled, revealed his identity, and said: "I am from Beijing. I originally wanted to take the art route, but then I accidentally learned it. Forensic.”

Zhan Kong looked at Jiang Yuan with bright eyes. He had also learned about skull restoration before, but the gap between what he knew and what Jiang Yuan showed was too big.

In contrast, Jiang Yuan's approach was obviously more attractive to him.