National Forensic Doctor

"Jiang Yuan thinks there is a problem with the time of death. If we count from the last witness to see the victim... it is equivalent to 8 days before the body was discovered. This time difference is too long."

In the conference room, Ma Jiyang, the captain of the Second Brigade of the Criminal Police Detachment, counted on his fingers and frowned.

This case was originally handed over to the Second Brigade for investigation, and Ma Jiyang himself, as the top criminal in the criminal investigation detachment, has solved many cases, and he rarely encounters forensic doctors who significantly modify the victim's time of death.

"It won't be as long as eight days." Jiang Yuan corrected slightly and said: "I estimate that it was about five or six days before the victim's body was discovered."

In one day, although the cause was not completely determined, Jiang Yuan still managed to determine the time and increased the time of death from 3 days to about 6 days.

Ma Jiyang said: "As far as we know now, the last patient left Li Yanmin's clinic on the night of the 4th. The victim Li Yanmin did not open the door on the 5th. He only informed everyone in the WeChat group that he would be going to hospital in the next few days. We rested for a few days and closed temporarily. No one saw Li Yanmin again after that. In the next few days, Li Yanmin chatted with people on WeChat, but did not receive any calls."

"Has this situation happened before? The clinic has been closed for several days. What should the villagers do if they want to see a doctor?" Liu Jinghui asked.

"There is a clinic in the town, less than 10 kilometers away from the village." The policeman in charge answered on his behalf, and added: "Li Yanmin often closes his business for a short period of time. For a while, he also liked to travel abroad, and he would do so during the off-season every year. , sneaking out to play two or three times. Sometimes we occasionally close for a day or two. People in the village are used to it. "

"His job is very comfortable, much more comfortable than ours." Liu Jinghui was quite surprised: "You don't even need to be a shopkeeper to open a clinic?"

"I heard from the villagers that Li Yanmin had been married once before. It was a flash marriage and divorce. He had no children, and he never found a partner. The villagers didn't want to introduce him to him. He couldn't get married and have children, and he had a house. People from the clinic must be living a comfortable life." The policeman in charge became more and more envious as he talked.

Ma Jiyang coughed twice and said comfortingly: "Don't think so, he lives a more comfortable life than us, not because he is unmarried and has no children, but because everyone lives a more comfortable life than us."

The police officer in charge opened his eyes wide and looked at Ma Jiyang, who is known as the ceiling of marital happiness in the criminal investigation team, and said: "Captain, if you say that, I feel much better."

"That's right. Don't be afraid of marriage. In our industry, getting married is already difficult anyway, so you don't have to worry about marriage at all. If someone is willing to marry you, it's because she's lost her mind. It's not our fault." Ma Jiyang became happier as he talked.

"The Ma Brigade is indeed the ceiling for mental health." Liu Jinghui praised highly.

Ma Jiyang laughed heartily. Yu Wenshu was also watching and laughing, but did not stop a few people from going off topic while talking about the case.

Ordinary case analysis meetings are not very serious. In other words, a relaxed atmosphere is conducive to creativity. Many criminal investigation agencies pay attention to discipline on a daily basis. When it comes to case analysis, a few core decision-making people gather around and still Allow no matter how big or small.

Compared with the criminal police team below, the Changyang City Criminal Investigation Detachment is the top criminal case investigation agency in Shannan Province. It can be said to be the highest criminal investigation agency on the front line. The members of the team are also experienced and capable elite members. For the management of such a unit, Yu Wenshu never emphasizes discipline.

After a few short jokes, a criminal police officer naturally brought the topic back and said: "Suppose the death time is changed to six days ago, that means he went out of business on the 5th and died on the 7th or 8th. In the past two days, Li Yanmin's WeChat account Have you ever sent a message to someone? If he is already dead, the message on your mobile phone may have been sent by the murderer?"

"Where are the WeChat chat records? Let's take a look." Yu Wenshu waved.

Immediately, a police officer handed the printed WeChat chat history into Yu Wenshu’s hands. In current cases, it has become a common phenomenon to use WeChat as evidence. Many financial transactions and relationships are proved using WeChat.

Yu Wenshu flipped through the WeChat chat history page by page. He had paid attention to this case before, but he had not yet gone into detail about every piece of evidence.

Liu Jinghui had seen the WeChat records before, and only said: "Li Yanmin's mobile phone signal was disconnected from the network on the 9th. Whether he was under the control of the murderer during this period is not clear, but it is an investigation direction."

Liu Jinghui is not very optimistic about this clue.

In the village where the victim is located, most of the land has been rented out to build factories. These factories can be used to build factories, ranging from a few to a dozen people. The self-built houses in the village also have partitions for rent. Yes, some factories even have dormitories, with complex environments and mixed personnel. To obtain effective clues from such places, ordinary visits are useless, and they basically need to be at the level of investigation.

It's not that Liu Jinghui is afraid of investigation. He also has the skills to call Xu Taining. It just takes a little longer to call, not to mention Jiang Yuan is here this time. The problem is that finding the mobile phone is too far away from finding the murderer. The fact that the mobile phone is in the hands of the murderer is itself a guess, not even reasoning, and even if the mobile phone is found, the murderer may not be found.

On the other hand, as a high-value asset, mobile phones are extremely liquid. An easy-to-understand assumption is that if the murderer abandons the mobile phone on the roadside, how long can it stay in a place full of floating people?

With the current mobile phone circulation model, if someone who picks up a mobile phone resells it, it may even arrive in Huaqiangbei within 24 hours. Liu Jinghui would not recommend expending manpower and material resources to investigate for such clues until he was desperate.

"I think we should make a fuss about the time of death." Liu Jinghui still trusted Jiang Yuan's discovery. In his heart, he has a degree of trust in all kinds of evidence, but this is something he would never say out loud on a daily basis.

Yu Wenshu also trusted Liu Jinghui and asked, "What do Liu Chu think?"

Liu Jinghui said: "First of all, I think the Ma Brigade has already started to do something, that is, the time of death has been advanced. Then the previous investigations should also be pushed forward, such as surveillance videos, such as the content captured at the vehicle bayonet. , and the interviews with witnesses should be extended to at least the 7th."

Ma Jiyang nodded beside him and said, "We are working on this."

"As for the second point, how did the murderer achieve such a big difference in death time? It shouldn't be a common method, right?" Liu Jinghui looked at Jiang Yuan and asked: "If this problem can be solved, maybe the case will be solved. "

In reasoning cases, if there is a situation that is obviously contrary to common sense, then explaining the situation can often explain the entire case. This is Liu Jinghui's secret idea.

"I have been thinking about this issue today. In fact, there are some methods, but which one it is depends on the results of various inspections." When Jiang Yuan said this, he specifically explained: "Toxicology laboratory, physical and chemical I have sent a large number of test materials to the laboratory, trace evidence laboratory, and DNA laboratory, and the queues are full. Let’s see what the final results are.”

"I'll ask someone to rush you and jump to the front of the queue for you." Yu Wenshu said immediately.

The so-called clever woman cannot make a meal without rice. Without sufficient evidence, Jiang Yuan's technology will not be effective.

At this point in the case analysis and discussion, Jiang Yuan quickly reviewed his technical list and said, "I'm going to do a map investigation to see if Liu's surveillance can reveal anything."