Chapter 354: All Truths

Forensic doctor Qiu Xing's ability, at the level of forensic pathology lv2.5, was just enough for him to understand what Jiang Yuan was doing.

Simply put, it was to infer the perpetrator based on the state of the victim's injuries.

When a knife slashes a victim, based on the depth and angle of the wound, one can infer the perpetrator's strength and the position of force.

When a hammer hits the skull, while the skull shatters, one can also infer the perpetrator's height, left or right-handedness, and the perpetrator's strength and other factors.

The human body is an excellent force-bearing object and has been studied relatively thoroughly. For example, if the same hammer blow hit a wall, investigators might have to check data to know the intensity values, but the human body doesn't need that; experienced forensic doctors can recite the data directly.

If it poked into the bone and left a mark on the bone, then even more could be inferred.

However, all of the above were just techniques Qiu Xing had heard of; he had never done anything similar.

Not to mention anything else, just the many regression equations involved in the thoroughly studied human body were difficult for Qiu Xing to look up—a regression equation is a summary, not as stable and authoritative as a theorem or formula. In other words, the scope of application of most regression equations is limited.

For example, inferring a person's height from the size of their feet must be related to race or region. And the judgment of strength involves even more links.

Therefore, facing different people in different environments, Qiu Xing couldn't even be sure which regression equation to use for calculation.

Of course, what's even more fantastical is memorizing these regression equations, just like Jiang Yuan showed.

This gave Qiu Xing the feeling that the longest article he had memorized was the Ballad of Mulan, while Jiang Yuan had already memorized all the Four Books and Five Classics.

The key is that Jiang Yuan dared to use them in practice and provide accurate judgments.

Forensic reports are no joke. Guiding the direction of a case and solving a case are very solemn matters. Mistakes don't just result in point deductions; at best, they waste everyone's time and energy, at worst, the case goes wrong, and all previous efforts are wasted. Even more seriously, someone might be injured or even die because of it.

For Qiu Xing, even if he found a suitable regression equation and calculated the perpetrator's height and weight, he wouldn't dare to say it so calmly.

Because he didn't have the confidence to truly make such a judgment. Jiang Yuan had no problem at all.

He was not only confident, but also made many judgments.

There were four bodies in total. Jiang Yuan looked at them one by one, and Mu Zhiyang's notebook was soon filled with records.

And by the time Jiang Yuan reached the end, he wasn't just giving judgments; he was also making detailed corrections: "For this one who tied the rope, his left and right hand strength is unbalanced. He should have been injured, or his legs and feet are not particularly convenient."

"The one who used the hammer left the most traces. Look at the blood drops he splashed; the movement is still very free, without any hesitation. It's possible he has done similar cases before. At the very least, he's someone who fights often."

"The one who used the knife wasn't very skilled. The cut marks can be seen; he was hesitant."

Jiang Yuan gave answers one after another. After Qiu Xing listened for a long time, he had no reaction.

That state was somewhat like doing certain activities for a long time, becoming numb and stiff.

At this moment, Jiang Yuan asked for a set of pens and began to draw on the table.

Jiang Yuan drew for a slightly long time.

Then, an image of an octagonal hammer appeared on the desktop, with dimensions marked next to it.

The lv2 ability of sketching only needed to be exerted a little bit to have an impressive effect.

Then, Jiang Yuan drew an image of a knife.

This was a machete with a wide back and blade, feeling like it could chop down a small tree in one go. Jiang Yuan blurred the handle part but made a close-up of the blade part, especially marking two chipped points after the collision.

Qiu Xing became curious again, like someone who had become numb from exercise, suddenly stimulated by something unusual, and re-awakened.

But after waking up, Qiu Xing regretted it again.

Regret.

"Is this what the murder weapon looks like?" Qiu Xing could guess the content of Jiang Yuan's image.

Jiang Yuan nodded: "Make a rough judgment."

Qiu Xing laughed. You drew it so detailed, even marking the chipped places on the knife, and you say you're making a "rough" judgment?

After laughing, Qiu Xing's expression gradually became solemn again.

He had heard many stories about awesome people, but he hadn't actually met many awesome people.

If he just watched Jiang Yuan work today, he would probably have an awesome story to tell later. But Qiu Xing thought about it again, and couldn't help but get closer to Jiang Yuan, whispering: "Jiang Dui, how did you draw these smoke knife marks?"

"Oh, this should actually be considered a tool mark inspection skill."

Jiang Yuan explained.

"Tool marks."

Qiu Xing gritted his teeth: "This doesn't seem to be the same as what the trace inspection team in our brigade does."

"En, the difficulty is still a bit high." Jiang Yuan saw that Qiu Xing wanted to learn, so he told the truth: "In terms of difficulty, the tool mark inspection technology I use should be harder than forensic pathology."

Jiang Yuan's forensic pathology is lv4, and tool mark inspection is lv6. The gap between them is probably enough for a normal person to learn for 20 years, if they are lucky.

Qiu Xing was a bit disappointed. He was a forensic doctor himself, so he knew how hard Jiang Yuan's forensic pathology was. He had originally thought about learning a few small tricks, but didn't expect it to be a solid wall of knowledge.

"It's so hard!" Qiu Xing sighed with unwillingness and asked: "How long did it take you to learn to this step?"

He saw Jiang Yuan was young and wanted to estimate it in his heart.

Jiang Yuan said: "I mainly figured it out myself."

Qiu Xing couldn't help but widen his eyes: "How did you figure it out?"

"Actually, it didn't take long. The number of bodies I've dissected so far is only about a hundred." Jiang Yuan was still using forensic pathology as an example.

Now, Qiu Xing understood. A favored child of heaven, a master of talent, right?

Indeed, what's there to say about someone who is fed by heaven, no, someone who is chased by heaven to be fed?

Jiang Yuan might be able to teach him, but that would require a long time and huge energy costs. This wasn't something Qiu Xing could pay for on a whim.

Jiang Yuan continued his work. At this moment, a light blue dumpling slid into Jiang Yuan's palm.

Ma Zhongli's legacy—Fishing (lv3): Ma Zhongli was an excellent designer and a loving father, but what he was best at and loved most was fishing. Overcoming many difficulties, crossing obstacles, coming to a large body of water in the cool morning, and pulling the rod continuously, was Ma Zhongli's happiest moment. If necessary, he could move this time to the cold early morning. Design was his career, fishing was his life.

Jiang Yuan accepted Ma Zhongli's legacy and couldn't help but sigh secretly. lv3 skill is not easy. Ma Zhongli originally had a chance to become a star that everyone paid attention to in the fishing ground. Who would have thought he would die in a home invasion robbery.

Yes, the nature of this case had already been judged by Jiang Yuan as a home invasion robbery. However, he wasn't ready to say it yet. After all, there was still the scene that hadn't been investigated.

Even so, when Jiang Yuan summarized multiple judgments after the autopsy and sent them to the special task force, it still caused an uproar.

"This is too detailed!"

"It's too much of a foregone conclusion, right."

"What is the basis for the judgment? Just giving us a few pieces of paper like this, if there's a mistake, who will be responsible?"

"Should we adjust the investigation direction?"

In the conference room of the Chiyong City Criminal Police Detachment, smoke was swirling, and people kept speaking.

Yuan Ben sat in the corner, looking at Wang Chuanxing with some worry, and whispered: "Don't be angry, everyone is just talking about their thoughts on the matter, not targeting you."

Wang Chuanxing's expression was serious, but his tone was very relaxed: "It's okay, Jiang Dui is often like this. And, this is a good thing."

"A good thing? Why?" Yuan

Ben didn't quite understand.

"That actual difficulty of solving the case might mean there isn't a technician who can understand Jiang Dui's operations, so it's not that big."

Wang Chuanxing expressed his opinion like a top student.

Yuan Ben pondered for a while before understanding Wang Chuanxing's meaning: You are too weak, so the case won't be too difficult!

Yuan Ben was instantly indignant, but didn't know how to refute it.

This guy, what he said seemed to be the truth! ===== CHAPTER 355 =====