Chapter 264

Jiang Yuan currently possesses lv3 forensic anthropology and lv3 forensic clinical medicine.

Compared to forensic experts of the same level, he has a slight advantage in the ability he possesses, which is that his knowledge system is extremely complete.

Things within the scope of lv3 forensic anthropology, he just knows. Knowledge within the scope of lv3 forensic clinical medicine, he doesn't fall behind at all.

This point is actually also very buggy.

It means that if a set of test papers were issued based on the level of lv3 forensic anthropology, Jiang Yuan could basically answer them for a score of 100.

But the reality is that most people, even expert-level forensic experts, are actually a bit biased in their subjects.

Like Shannan Province's own top 2 forensic expert, Zhang Fengtian, his forensic anthropology might also be at the lv3 level, but if he were asked to take an lv2 test, it would definitely be a perfect score; if he were asked to take an lv3 level test, it might be an 80 or 90.

There are always some very detailed, relatively niche, or cold and unpopular pieces of knowledge that he has not studied or researched in detail.

In daily work, this actually doesn't have much impact.

Criminal cases have never had only one path. Many cases, in the eyes of some people, have only one clue, or no clues at all, but in the eyes of others, there may be multiple clues.

Like ordinary criminal police, when they arrive at a crime scene, they look for DNA, fingerprints, surveillance, mobile phones; if that really doesn't work, they look for eyewitnesses. Only a very small number of people can pay attention to footprints, and those who can notice the morphology of blood rather than the blood itself are already very rare in this era.

But for Jiang Yuan, these are all targets within his range; choosing any weak link, he can make a breakthrough.

It means that the criminal suspect needs to pay attention to all these links, and to a considerable degree of concealment, to have a possibility of escaping punishment.

Similarly, for Shannan Province's top 2 forensic expert, Zhang Fengtian. He has many technical means, but it doesn't mean he needs to master all relevant knowledge—especially niche knowledge like the shrinkage rate of burned bones that has not yet reached a clear conclusion. Even if he starts searching for papers and monographs immediately, consulting by phone, etc., he won't be able to figure it out without a few days.

As for which shrinkage rate is more suitable to choose in the end, one can still only have a rough concept and cannot reach an accurate conclusion.

It means that even if Zhang Fengtian starts to make up for his knowledge shortcomings starting from the shrinkage rate of burned bones, he would first have to delay for several days, and secondly, the conclusion he reaches would still be probabilistic, meaning there is still a possibility of error.

Similar to Jiang Yuan, in this situation, Yu Wenshu still has to make the final decision as the person in charge.

Even so, he would only be able to provide the victim's possible age, gender, and height...

As a long-famous great forensic expert, Zhang Fengtian is probably unwilling to take this path.

Jiang Yuan doesn't mind.

He has a little fame now, but he doesn't have an idol burden, nor should he have an idol burden.

Sitting in the corner of the conference room, Jiang Yuan first measured each bone fragment with a ruler.

The shrinkage rate is hovering around one or two percentage points; if he used the previously measured data and made a mistake, it would be too frustrating.

Jiang Yuan measured it several times himself, recorded it, and then analyzed the degree of carbonization or vitrification of each bone fragment.

Carbonization at 800 degrees, vitrification at 1000 degrees, but these two values are both beyond the level of existing literature and beyond the level of ordinary civilian furnaces.

Jiang Yuan sketched for a moment on the surface and estimated a value of 17% for the vitrified bone fragments.

Then, he estimated a value of 15% for the carbonized bone fragments.

By calculating backwards this way, data such as the length and width of the fresh bone fragments can be obtained.

Then, by applying the regression equation, the height of the deceased can be obtained.

As for gender, it depends on how several feature points are.

In summary, in the middle of this series of calculations, there must be three estimates; if it is slightly off, the final result may be vastly different.

Jiang Yuan increasingly understood Zhang Fengtian's conservatism, but when doing a case, if you are afraid of making mistakes, you can't do it.

Those who do criminal cases spend most of their time trial-and-error; it's like those who watch surveillance or check fingerprints—they only choose to withdraw and take other, more difficult paths after discovering one after another that they were wrong or hit a dead end.

Forensic anthropology is the same.

If you estimate wrong, you start over.

Despite this, Jiang Yuan still did it very meticulously to minimize errors as much as possible.

Everyone else in the conference room could see Jiang Yuan's working state.

At this time, the 513 case had basically ended, and everyone had nothing else to do, so they had to study this current case separately.

Those who are good at making PPTs are more comfortable; no matter how little evidence the case has, it doesn't affect them making PPTs.

Police officers who really had nothing to do went straight out to lift weights.

The conditions at the Changyang Municipal Bureau are relatively good; there is a gym equipped in the office building, and exercise and even personal trainers don't cost money; as long as people go, that's enough.

Jiang Yuan looked at the burned bone fragments, flipping them over and over.

On his notebook, values were gradually listed:

Gender: Female.

Height: 165-172 cm.

Age: 22-25 years old.

By the time Jiang Yuan wrote down the last item, there was basically no one left in the conference room.

"Go back to the guest house to rest." Jiang Yuan edited a text message and sent it to Detachment Captain Yu Wenshu. Then he called Wei Zhengguo.

Wei Zhengguo rubbed his eyes, glanced at his watch, and smiled: "Dinner time has passed, did I fall asleep?"

"You didn't snore." Jiang Yuan comforted him.

"Are the bones figured out?" Wei Zhengguo saw that Jiang Yuan had already put away the evidence box.

Jiang Yuan nodded and said: "I don't know if it's useful; let's look at the feedback from the front line later."

"You're not optimistic?" Wei Zhengguo is too familiar with Jiang Yuan and could already easily guess some of his thoughts.

Jiang Yuan nodded slightly and said: "Although it is a current case, 15 days have passed since the case was discovered. Burning a corpse also takes time; to burn it to this degree, I'm afraid it took several days."

"So, are we looking for someone who went missing 20 days ago?"

"Yes. At least." Jiang Yuan nodded. This information is still too little, although it was extremely laborious to obtain.

Jiang Yuan left the police station, and Yu Wenshu's text message also came back, which was just a short "Okay" word, nothing extra.

Jiang Yuan showed it to Wei Zhengguo and said: "Go back to rest, let's look at the screening results tomorrow."

The next day.

When Jiang Yuan, Wei Zhengguo, and the others had eaten and drank their fill and arrived at the unit, they saw a group of people blowing and beating in front of the detachment building, and there were things jumping around.

When they got closer, they confirmed that the things jumping around were lion dancing, and opposite the lions was Yu Wenshu.

"Jiang Yuan, come over." Yu Wenshu beckoned Jiang Yuan over.

Jiang Yuan: "What's up?"

"This is a lion dance performed by Ruan Sijing's family." Yu Wenshu said: "Every year when festivals arrive, especially during the Spring Festival, his family will set out with a lion dance team to perform everywhere. Ruan Sijing's case was solved, and his family came directly with the lion head."

Jiang Yuan hesitated for a moment and said: "The case hasn't been sentenced yet."

Yu Wenshu said: "For many families, knowing who it is is enough."

In a daze, the lion rushed up, shaking its head at Jiang Yuan.

Jiang Yuan subconsciously reached out and touched the lion head.

The lion head stopped quietly, letting Jiang Yuan stroke it.