National Forensic Doctor

In just one day, the laboratory found the murder weapon among the 68 hoes collected.

This is also a major feature of rural cases. The motives of the cases may be confusing, but the villagers' counter-investigation methods are also lackluster.

The family even just cleaned the hoe. Not to mention throwing it away, the bamboo handle was not replaced. Not only that, they also stored the hoe in the warehouse. When each household wanted to take out the hoe, the neighbor pointed out: Didn't your family buy another hoe?

This hoe was emphatically marked by Lei Xin and sent to the laboratory, where it was immediately selected.

"The murderer is equivalent to the cousin of the deceased, and the root cause is the cemetery issue between the two families..." Lei Xin introduced a few sentences, and then he felt confused, shook his head, and said: "In short, it is just a matter of old sesame seeds and rotten millet. , according to the murderer’s account, the two were talking in the backyard at the time, and they got into a quarrel over repairing the canal, and then started fighting.”

Lei Xin went on to explain part of the situation in detail, then spread his hands and said: "If you want to find clues to the motive, a lifetime will not be enough."

"It means that if this family had dealt with the hoe properly, this case would have been difficult to solve." Wang Chuanxing was sitting nearby typing on the computer. Hearing this, he couldn't help but ask.

Liu Jinghui shook his head: "That's not a big deal. As long as we determine what the murder weapon is, it's not difficult to go back and ask whose hoe is missing."

"It's true that there are not many secrets that can be hidden in the village. This time, the murderer's next door neighbor also helped." Lei Xin himself was born in the countryside. When he said this, he couldn't help but shake his head and said: "Two Families also fought over building houses, building water canals, and there were also disputes over cemeteries, but they didn’t turn into criminal cases.”

"You've heard a lot of gossip, right?" Liu Jinghui asked with a smile.

Lei Xin sighed: "It's not just gossip. When they saw that we arrested people, some begged for mercy, and some talked about dark history in private..."

"At least this case is over." Jiang Yuan is from Jiangcun. When he was a child, everyone sympathized with him. When he grew up, the village as a whole became rich. There were no dirty things, but Everyone no longer has to just focus on the people in the village, and since he went to school in other places, the impression of the village is much better.

Seeing that Jiang Yuan didn't like this topic, Lei Xin quickly wiped his face and said with a smile: "Yes, the case is finally over. Oops, such a huge backlog of murder cases, in previous years, it would have taken three months to solve it, and the whole situation would suffer." It’s a wedding, this time it’s only three or four days!”

As Lei Xin talked, he felt emotional.

The ministry has specially invited criminal investigation experts. The first nine people are called the Eight Tigers of Criminal Investigation. They can be said to be famous and have participated in many major and important cases in the country. Many of these cases cannot be told as stories because the element of mystery is too great.

After the first batch of nine specially invited criminal investigation experts, the ministry added eight more in 2003. So far, there are 22 specially invited criminal investigation experts, and another 350 criminal technical experts, etc. Speaking of which, everyone They are all flying around the country to solve cases.

Lei Xin himself has come into contact with several of them, and although they have only had a superficial taste, he feels that Jiang Yuan's efficiency and ability are not inferior to those of these famous experts.

Of course, experts are also very efficient. In fact, criminal investigation experts rarely get stuck on a case. In just a few days, if the opinions they put forward can bring about a breakthrough, the case will be closed. If the opinions cannot bring about a breakthrough... In fact, most of them can get a breakthrough.

In particular, criminal investigation experts mainly focus on current cases. In terms of crime, ordinary criminals are equivalent to young virgins falling in love for the first time. No matter what awesome tricks or strange postures they fantasize about, they solve an average of hundreds of cases every year. From the perspective of veteran experts who have been working hard for 20 to 30 years, they can easily figure it out.

Therefore, just like a young virgin who has just fallen in love should not provoke experienced perverts, it is best for ordinary criminals not to commit any vicious crimes to avoid attracting the attention of high-level criminal investigation experts, and to be lucky enough to avoid Being generally shocked by young and motivated criminal investigation geniuses like Jiang Yuan, he finally entered the ordinary level track. Unlike those who are not extremely talented, but have also been working on the front line of criminal investigation for seven or eight years, more than ten years, Criminal police officers who have been together for more than 20 years have followed a path of confrontation.

"With Captain Jiang here, the day when our Qinghe City will return to Haiyan Heqing is not far away!" Lei Xin's mood was so high that he wanted to praise Jiang Yuan.

Jiang Yuan only used three days to save himself and more than a hundred people on the team several months, maybe even longer. Lei Xin felt really good.

Liu Jinghui clicked his tongue twice and said, "The word Haiyanheqing doesn't sound like what you said, Captain Lei."

"You didn't expect me, a rough old man, to speak in such a refined manner, right?" Lei Xin laughed and said, "My wife graduated from Changyang University, so she can easily be raped."

Liu Jinghui's face darkened: "Don't say anything that could easily damage unity."

Lei Xin smiled so happily that all the resentment accumulated over trivial family matters disappeared instantly.

Turning around, Lei Xin's deputy refilled the tea in front of Jiang Yuan and said with a smile: "Captain Jiang, are you having a day off today?"

"I plan to grill a steak today, but you may have to keep busy." Jiang Yuan took a sip of tea and smiled as he spoke.

Lei Xin was stunned for a moment, then he came to his senses and hurriedly said: "Do you want to open a new case immediately? That's great..."

"Well, I dug it out two days ago when we were busy working on this hoe." Jiang Yuan turned around and picked up a box and said, "This case is actually quite old. I think it's been six years. It's wrapped in plastic. The male corpse was abandoned in Taihe. The task force back then was..."

"411 Task Force." Lei Xin had a lot of backlogged cases here. Jiang Yuanyi said that six years ago, he almost knew which case it was, and said: "At that time, the Qingming Festival had just passed, and people here came from Taihe. Once the body is fished out, even if the rest of May Day is in vain, hey...it's a pity that the case is not solved."

"Well, there are a few details in this case that I think we can pay attention to." Jiang Yuan paused, took out the file, flipped through a few pages, and said: "The body in this case was wrapped with white nylon rope. It was tied with white translucent plastic sheeting. In addition, the other end of the nylon rope was connected to a green nylon rope with a diameter of 1 cm. There were also two types of plastic sheeting on the outside of the body, one new and one old, which can be seen , these things were done in a hurry, it doesn’t look like they were prepared in advance.”

Lei Xin nodded while recalling the case.

Jiang Yuan continued: "Judging from the nylon rope and plastic sheet wrapping the body, the murderer should have obtained relevant materials readily. In other words, the murderer was probably in the area of ​​the first scene, and it should be easier to obtain these materials. Is that how you judged it at the beginning?"

Lei Xin continued to nod, take notes, and then asked tentatively: "Is this judgment wrong?"

If he were an unknown criminal police captain, the first thing he would think of at this time would be to question Jiang Yuan, but Lei Xin had been subtly transformed by Jiang Yuan, and the first thing he would think of would be whether he was wrong.

Jiang Yuan shook his head: "I have no objection to this judgment. You were wrong mainly in the autopsy."

Lei Xin was shocked. If there was a mistake, it meant that there was a possibility of revision, and there was hope of solving the case. As for the forensic doctor making a mistake, and the forensic doctor making a mistake in front of Jiang Yuan, in Lei Xin's opinion, it was just that. For some things, if you set the standard too high, the ones who don’t make mistakes will become a minority.

In fact, Jiang Yuan often makes mistakes when investigating backlogged cases. Otherwise, under the same conditions, trying to get a different result is tantamount to asking for a fish in a tree.

Jiang Yuan took out the autopsy report and said: "When the body was discovered, it looked like a giant. Rigor mortis had been alleviated. During the autopsy, it was found that the right occipitotemporal skull had a comminuted fracture, the dura mater was intact, the brain tissue had autolyzed, and the hyoid bone No fractures were found, and the subcutaneous tissue and muscles of the neck, chest, and abdomen showed emphysema..."

After Jiang Yuan read part of the autopsy report, he continued: "The cause of death was craniocerebral injury, plus mechanical injury. Forensic analysis showed that the murder weapon was a blunt instrument with a long contact surface, hard, and easy to swing. It was speculated to be metal. Sticks. In addition, there is a strip-like skin injury around the neck, with subcutaneous bleeding in some areas. The injury is consistent with a soft strip-like object, such as a rope strangulation. The judgment in this part is quite good, but..."

Lei Xin knew that this was the real show.

"Forensic doctors have problems with judging the age of the corpse. Judging from the report, the pubic symphysis surface of the corpse is relatively flat and seems to have ridge marks. The ventral slope does not reach the top, the lower corner appears, the ventral edge is basically formed, and the dorsal edge is not significantly everted. ...There are problems with this observation, and there is a big difference." Jiang Yuan knocked on the table, hesitating slightly at this time.

Judging the age of a corpse is basic, but basic does not mean simple.

Especially when judging by bones, even with a pelvis, there are still too many ambiguities in judging age. There are too many empirical and subjective factors here.

In fact, looking at bones is similar to looking at faces. Normal people can basically give an estimate of a person's age based on their face under normal circumstances.

Looking at bones is similar, but forensic doctors have made it more detailed and given as many specific parameters as possible. However, when encountering a special person or a corpse in a special environment, it is like facing a transformation. Just like people who wear makeup, the accuracy of age judgment will be greatly reduced.

If the age is wrong, the source of the body will be even more difficult to determine.

"I will look at the bones again later and make a specific judgment. But based on the current information, the original forensic doctor's age judgment of 28 years plus or minus one year was wrong." Jiang Yuan quickly gave part of the explanation. Answer.

"Are there many mistakes?" Lei Xin immediately asked.

"There should be quite a lot." Jiang Yuandao.

"Okay, okay... I mean, this is a new clue." When Lei Xin and others were looking for the source of the corpse, they naturally had to check it based on age. If the actual age is different from the estimated age, If it is large, there is a reason why the source of the corpse cannot be traced.

The instructor of the criminal police brigade was standing by. He took out his cell phone without hesitation and said, "I'll ask forensic doctor Niu to come over with the bones. Lao Niu should be the one who followed this case."

"Okay." Lei Xin said, pulling the instructor aside and saying: "Tell Lao Niu, don't be burdened, let Medical Examiner Jiang pick out the mistakes and it won't be considered mistakes. Correct your attitude first, and you can do some ideological work for him." .”

"Understood." The instructor said seriously. This job is much more glorious than the police who comfort divorced people.

Updates have resumed. I would like to report to concerned friends that the surgery went well and I was able to get out of bed and walk the same day. However, I was a little groggy and had cold-like symptoms, which have improved a lot in the past two days. I rested for almost 8 days. In fact, I didn’t need to rest on the first day. The surgery had not started yet, but I was too nervous and the effect of forced coding was not good. On the contrary, after the operation was completed, I felt more relaxed.