Chapter 696: Being at the Top

"Do the on-site investigation first." Jiang Yuan waved his hand, still working in a serious manner.

Zhan Kong couldn't help but concentrate.

When he recalled the work he had done just now, even if he had some predictions about it, he could still only say that it was unremarkable. However, after listening to Jiang Yuan's conclusion of one, two, three, four, five, he could not use the word "extraordinary" to describe what he had just done. Participating in the exploration, that would be too strange.

Judging from his status as a forensic doctor, it was more like a thunder on the ground.

However, even if Zhan Kong was given another chance, he still could not find anything beyond the ordinary in Jiang Yuan and his work itself.

It's really just an ordinary, ordinary job, and the body's behavior is also ordinary, ordinary.

Zhan Kong has also been a forensic doctor for several years, and he is a high-level professional, but he still can't fully understand Jiang Yuan's conclusion - the content of the conclusion is naturally clear, and the condition is that he follows Jiang Yuan step by step. What came out was just how to change from "known" to "inferred from this", which he couldn't figure out.

Jiang Yuan didn't have time to explain, so he carried out the investigation step by step.

On-site investigation is inherently a meticulous job, and the higher the level of on-site investigation, the higher the level of detail.

When conducting ordinary field surveys, targets are often selected at fixed points, just like the famous cattle forensic doctor in Qinghe City. When he entered the scene in the early years, he did not look at anything and first collected toilet paper and the like.

Even by scanning fingerprints, it is impossible for the investigators to see every inch. Most of the time, they just look at the positions of doors and windows, door handles, drawer handles, and the surrounding areas of lost items. For ordinary small cases, it is very good to get one or two hours of attention from the on-site investigators.

When it comes time to scan inch by inch, you have to identify the source of fingerprints or DNA and whether it is contaminated, which requires a higher level of on-site investigation capabilities.

Jiang Yuan finished sweeping the bedroom and then the living room. He took samples when it was time to take pictures and took pictures when it was time to take pictures. It was considered another spot survey. It's not that he doesn't trust the investigators of Zhengguang Bureau, but everyone's understanding is different. Now he is purely treating it as a murder case. On the other hand, there are already many people doing the on-site survey, and it would not be a mistake to have one more person doing the work.

"Did you find anything?" Liu Sheng waited until Jiang Yuan started to take off his gloves again, and hurriedly came over to ask.

"I can't say yet. I have to go back and take a comprehensive look." Jiang Yuandao: "I'm going to the anatomy center."

"Okay, okay." Liu Sheng responded repeatedly, and then said: "I will stay at the scene for a while. If you have news over there, I can give feedback in time."

When Liu Sheng took over the current murder case, he was prepared to stay up late.

Not to mention that this case was named by multiple leaders, even if the suspect was left at the scene with a murder weapon and a murder of passion was discovered, the criminal police might have to stay awake for days and nights to fix evidence and interrogate. , documents...

Mu Zhiyang drove Jiang Yuan and Zhan Kan directly to the anatomy center.

The body of the victim Zhou Xiangyang came earlier and was already lying on the cold stainless steel bed.

Several available forensic doctors came over and were waiting to see Jiang Yuan's autopsy.

Jiang Yuan rarely had such an experience, and couldn't help but praise: "It's really good that you have such an anatomy center, with so many colleagues working together."

"You can ask for an anatomy center." Zeng Lianrong, an old forensic doctor, obviously knows a lot of information.

Jiang Yuan smiled and said: "In Ningtai County, there are two forensic doctors including me. My master is about to retire..."

While he was talking, the layout of the anatomy table had been completed.

The body was placed flatly on the table.

The old man was more than 1.7 meters tall when he was alive and had a thin body. Now he has turned into a corpse. He is a type that is more popular among forensic doctors. If he cuts it with one knife, the fat will not be released, and it will not be too hard to cut.

"Record the time, and then... now there are dark purple-red corpse spots. If it is rigor mortis, it is distributed in all joints of the body. The bulbar conjunctiva is pale, and the junction is congested..."

Jiang Yuan did another physical examination before raising the knife to make an incision.

Zhan Kong quickly put down his notebook and came to assist, while a forensic doctor next to him obediently picked up his camera and started taking pictures.

There is a video of the whole process in the anatomy room, but the precision is definitely not as good as taking a photo. The most important thing is that the angle is different, and sometimes the reflected content is different.

Zeng Lianrong is a veteran in the anatomy center, so he only needs to stretch his head and look.

He has collaborated with Jiang Yuan on two cases before. The process of understanding each other has been completed and they are currently in a learning state.

Seeing Jiang Yuan open the three chambers, Zeng Lianrong naturally leaned over and carried a bucket to Jiang Yuan.

Forensic doctors like to use buckets to store organs such as the stomach, heart, and lungs. If they are easily spilled in a basin, the forensic doctor will also feel disgusted. And it affects the accuracy. Furthermore, some people eat too much, or have cardiopulmonary hypertrophy, and the loading capacity will be far higher than expected.

As the saying goes, if you don't open a person's stomach, you don't know how many bowls of jelly he can stuff in his stomach.

"A small amount of light red foamy liquid can be seen in the tracheal cavity..."

"There is still a lot of fluid in the stomach..."

"Patchy bleeding can be seen under the pancreatic capsule..."

"There is homogeneous pink-stained edema fluid in the alveolar spaces..."

Having said this, Jiang Yuan looked up at the other forensic doctors and said, "In this case, it should be considered that he died of poisoning."

Zhan Kong was still in a daze, but Zeng Lianrong nodded in agreement.

Whether to consider death by poisoning is related to whether to conduct toxicological examination immediately and the meticulousness of the examination. The most important thing is that if it is determined to be death by poisoning, heart blood should be taken immediately to prevent the poison from being metabolized in large quantities.

Although the sensitivity of toxicological examination is very high now, there are too many types of poisons, and there are always some poisons with small residual amounts.

Moreover, unlike what many people imagine, toxicological examination is not to put the blood containing poison into the instrument, and the instrument can give the answer with a beep. In essence, toxicological examination is still a comparative process. There are some common poison component data stored in the instrument. To some extent, it can beep, but slightly more remote poisons need to be re-compared and analyzed one by one, which is difficult.

Jiang Yuan also quickly took heart blood, stomach contents and urine, and sent them to the toxicology laboratory on the spot.

Next, several people carefully checked whether the body had external injuries, pinholes, etc., and then completed the rest of the autopsy.

When the time was almost over, a ball of blue rolled from the mouth of the corpse to Jiang Yuan's hand.

Zhou Xiangyang's legacy - Cryptography (LV5) - Zhou Xiangyang has been a genius among the crowd since he was a child. This was the case in elementary school, junior high school, and high school. Until he entered college, he was still at ease and at the top, which made him always consciously seek challenges. Cryptography may be the most competitive of all disciplines, especially when he just entered this field. The world's two poles compete for hegemony, and the demand for cryptography is endless. The future of cryptography seems to be infinitely broad... In recent years, the commercial value of cryptography has been increasingly developed. The development of new Internet technologies such as blockchain has enabled Zhou Xiangyang's students to always get extremely high salaries, but Zhou Xiangyang himself gradually began to feel bored. Making money was not his original intention to learn cryptography.

Jiang Yuan sighed secretly. After the inspection was completed, he silently sewed up Zhou Xiangyang's body. He thought that even as a corpse, Zhou Xiangyang's death mystery was top-notch. He just hoped that he could crack his death code.

"Please call Tao Zhi for me." Jiang Yuan's hands were occupied, and he turned his head to the forensic doctor next to him.

The forensic doctor next to him dialed the number quickly and put the phone next to Jiang Yuan.

"Tao Zhi." Jiang Yuan waited for the call to be connected, and then said: "Zhou Xiangyang's autopsy is done. The cause of death is not yet clear, but it is likely that he died of poisoning. The blood has been sent for toxicology. I noticed that the project he is currently working on is related to cryptography. See if you want to notify the National Security Bureau."