civil forensic

Chapter 190 No. 1
in the afternoon.

Jiang Yuan slept for a few hours, then was awakened by the phone call, got into the car in a daze, and went to Qinghe Municipal Bureau for a meeting.

The first floor of the Municipal Bureau is the lecture theater where he gave a speech before, and further inside is the conference room that he will go to this time.

The conference room is much smaller than the lecture theater, and it can accommodate twenty or thirty people in total. However, the director and deputy director of the city bureau, as well as the head of the criminal police detachment, all came, and the atmosphere was extremely high. Serious.

Jiang Yuan was a little groggy. He followed Wang Lan and sat in the corner of the conference room. Looking at the crowd, he couldn't help thinking: If he was in a primitive tribe, it would be equivalent to the inexplicable death of the tribe members. And attended the bonfire party too.

"Why are you sitting so far away?" Liu Jinghui moved directly from the conference table to Jiang Yuan's side.

Although a few people turned their heads to look over, they quickly turned away.The fourth-level senior police chief of the provincial department and the small forensic doctor in Ningtai County have little influence on the city bureau.

The police department is a relatively independent department. At the level of the municipal bureau and the provincial department, if you don't handle cases, you are relatively comfortable and free.Usually, you don't need to care about the Ministry of Finance and the like.

In fact, Jiang Yuan didn't need to care about the opinions of the people in the city bureau, so he leaned on the chair and said a little listlessly: "It's not my turn to sit in the front row. We stayed too long yesterday."

The word "boil" is a pun, which made Wang Lan next to him laugh.

Liu Jinghui also knew this forensic doctor from Qinghe City, so he looked over for some confusion.

"We were deboning corpses yesterday." Wang Lan completed this very hellish joke.

Liu Jinghui is best at reasoning, and when he turned his head, he was immediately disgusted.

"You forensic doctors..." Liu Jinghui was well-informed, shook his head, and asked Jiang Yuan, "How do you feel about the case?"

Although the case analysis meeting is coming up next, Liu Jinghui cares more about Jiang Yuan's thoughts.

He can be regarded as an old criminal policeman who has been running for 10 years in all parts of the province. He has seen strange people born and bred, and professional players supported by ministries and other provinces and cities. But no matter from which angle you look at it, Jiang Yuan's skills and Judgment is at the T1 level.

There are people of the same level, but the Qinghe City Bureau obviously does not.

Jiang Yuan patted himself on the head, thought for a while, and said: "I think these six corpses have been dealt with relatively cleanly, especially the latter two, they have been upgraded thoroughly, and I don't know how he will deal with the rest Head off."

Liu Jinghui didn't expect Jiang Yuan to consider it from this angle, so he couldn't help asking: "Is it important how to deal with the head?"

"Compared to other parts of the body, the head is still more difficult to deal with." Jiang Yuan said: "The skull is the hardest, and it is not easy to cut. It may be better to smash it with a hammer. In short, if there is a way to deal with the head, it is also possible deal with the rest of the body."

"What do you mean?" Liu Jinghui wasn't sure if he understood.

Jiang Yuandao: "I looked at the places where the bodies were dumped in the reservoir. There are roads nearby. I suspect that the murderer drove to the road, then transported the bodies there, and then dumped them. Normally, he would not have dug up the bodies alone. Let's bury the corpse."

"Well, the murderer should be very strong. It is possible to use a non-motorized vehicle, or even carry the corpse directly." Liu Jinghui told Jiang Yuan his own judgment.

Jiang Yuan was a little surprised: "The body bag is very heavy. When we carried it to the dissection table, it was easy for four people, and it was laborious for three people."

"It takes four people to carry a pig during the New Year in the countryside." Liu Jinghui said briefly, "The back can still be moved. We have done relevant statistics before, and the corpses thrown at medium and short distances are mainly carried by people's backs and non-motorized vehicles. host."

"You think the murderer lived near the reservoir?"

"At least I'm familiar with the reservoir." Liu Jinghui said: "I went to the scene and asked the locals who helped retrieve the corpse. The murderer chose a very good place. If it weren't for the drought, under normal circumstances, they wouldn't have been found. .”

"If you are very familiar with the reservoir, shouldn't you choose the deep water area?"

"This has to be seen from two aspects. One is that the deep water area is close to the center of the reservoir, and it is more difficult to transport the corpse by land. The other is that the murderer may not consider the dry situation because he is familiar with the reservoir. Because in In his memory, the reservoir may not have been so dry."

Jiang Yuan nodded slowly.Liu Jinghui's reasoning is also reasonable, and Jiang Yuan is not going to argue with Liu Jinghui on this aspect.

"Another one. The murderer's follow-up small body bag was found in deeper waters, which can also be regarded as part of the escalation of the crime." Liu Jinghui paused, and said: "I suspect that when he threw the small body bag, The problem of water flow has been taken into consideration, so the original location for dumping corpses has to be considered again.”

Seeing Liu Jinghui's big head, Jiang Yuan couldn't help but smile.

One thing that is very difficult about criminal science and technology is that what you want to solve is a real problem, but the technology used actually comes from paper.

It is equivalent to saying that it is necessary to explain the real situation through paper and laboratory operations.

This is actually very difficult.

The reason why DNA and fingerprints are so widely used and so easy to use is because they are simple and straightforward, and are less interfered by reality.

The reason why so few people use crime scene reconstruction and bloodstain analysis is because their judgment process is too complicated, and idealized things always seldom happen.

People who engage in economics, when writing economics, must assume a concept of "rational economic man", which requires people to be not only rational but also self-interested.

Those who engage in the criminal department, if they assume a "rational criminal", they are purely insane-if people can be rational and self-interested, more than half of the cases will not happen.

This is the most troublesome part of Liu Jinghui's reasoning.

Without enough information, you can't even tell if the killer is a psychopath or not.And it's literally mentally ill.

According to American profile analysis, serial killers are more or less mentally ill.

And the six corpses right now are actually enough to give the opponent this title.

Seeing Liu Jinghui's troubled look, Jiang Yuan felt a little relaxed after a day of sleepiness.

Therefore, Jiang Yuan decided to add another code to him, saying: "Liu Chu, if you can't find the heads of No. 5 and No. 6, you have to consider expanding the search range."

"So important?"

"No, I'm also trying to reason. If the murderer can remove all traces of the head, he should also be able to remove the traces of the body."

Liu Jinghui was stunned for a moment before he understood what Jiang Yuan meant. He frowned and said, "Don't you want to say that there are more corpses and they have been dealt with separately?"

Jiang Yuan spread his hands: "Maybe, I have no evidence, pure reasoning."

"Bad reasoning." Liu Jinghui felt uncomfortable all over. He usually used reasoning to disgust people, but he didn't expect to be generalized by Jiang Yuan this time.

This way of killing but not burying caused Liu Jinghui's brain to spin crazily.

In the end, he also had to admit that if the murderer keeps upgrading and learning, this is really possible.

"Cough cough. Everyone be quiet." Shen Feihong, the head of the criminal police detachment in Qinghe City, stood up and started the meeting process.

After announcing the establishment of the 724 Qinghe Extraordinary Homicide Task Force, Shen Feihong reported the situation of the case.

After some information about the autopsy, Shen Feihong said: "Just two hours ago, our frontline police officers confirmed the source of the No. 1 corpse. Now Captain Shi of the Serious Crime Brigade will explain it to everyone."

Both Jiang Yuan and Wang Lan were a little surprised, and they got serious together.

Captain Shi is tall and thin, with protruding cheekbones, dark eye circles, and yellow teeth. At first glance, he looks like the kind of driver who drives a taxi during the day, rides an online car-hailing car at night, and runs to Meituan while waiting for his shift. like.

He took a piece of paper in his hand, wrote a few words on it, looked at it, and said: "According to the information provided by the forensic doctor, the deceased No. 1 was a female, about 40 years old, 170 cm tall, and had porcelain teeth installed. ... After finding no missing persons in this city, we expanded the scope of the search to the whole province..."

"Finally, we requested the assistance of the provincial department to confirm the identity of deceased No. 1 through mitochondrial DNA technology. The deceased was named Ma Hongyan, a native of Wanxiang City, and a buyer of Wanxiang Maolin Local Products Company. The colleagues in the company went on a business trip and separated at Changyang City to go to their respective destinations. Qinghe City is the second stop of Ma Hongyan's itinerary..."

Jiang Yuan listened quietly in the corner, knowing that the special case team was full.

Whether it is mitochondrial DNA technology or a province-wide search, it is very labor-intensive and materially resource-intensive.

The choice of the breakthrough point as No. 1 is also because the characteristics of the No. 1 corpse are more obvious. Facts have proved that the choice of the task force is extremely correct.

But judging from the results, the identity information of No. 1 is not enough to promote the progress of the case.On the contrary, from another aspect, it illustrates the complexity of the case. The disappearance case 8 years ago means that the murderer started committing crimes 8 years ago.

(End of this chapter)