National Forensic Doctor

Chapter 760: Simplicity and Complexity

Early in the morning.

The reinforcements seconded from Ningtai County took a bus to the building of the Criminal Police Detachment of Zhengguang Bureau.

Under the blue sky and white clouds, the building of Zhengguang Bureau is solemn and dignified, and the straight and straight appearance is very atmospheric.

Wu Junhao and Liu Wenkai walked side by side, looking at the building of the Criminal Police Detachment while chatting easily.

"Although the building of Zhengguang Bureau looks smaller than our new building, its shape is still quite good, especially the large area of ​​the yard. It is not like our building, which is just past a small parking lot and reaches the roadside." Liu Wenkai casually commented on the difference he saw.

Wu Junhao just smiled and said: "Our new building may also have a contribution from Zhengguang Bureau. Both parties are related. You can say something nice."

"I understand. When I caught prostitutes before, some guys didn't even know the other party's real name, and they pointed at the hair and shouted, "She got this hair done with my money, can we have no relationship? The same meaning." Liu Wenkai said it seriously.

Wu Junhao was amused by what he heard, and slapped Liu Wenkai's skinny body: "I miss you a lot."

It's been more than a month since he returned to the Criminal Police Brigade. Wu Junhao was busy reorganizing the team and really didn't have time to have a good chat with Liu Wenkai.

Liu Wenkai gasped when he was slapped, and said with nostalgia: "Thank you, Mr. Wu, for your concern."

Wu Junhao was transferred back to the Ningtai County Criminal Police Brigade as the captain of the first squadron, and was also given the position of deputy captain. Although it has no real meaning, it sounds good.

Although Mr. Wu is not really nice.

"Just use the original name. Don't let people misunderstand it." Wu Junhao rubbed Liu Wenkai's shoulders.

Liu Wenkai grinned: "No one will misunderstand it. Everyone in our brigade knows that Mr. Wu likes to treat everyone to meat-stuffed biscuits the most."

"That's called meat-stuffed buns."

"What Mr. Wu invites, of course it should be called biscuits. Just like the little girls hired by a big company to sing and dance, they should be called a song and dance troupe."

...

Conference room

Tao Lu, the detachment leader, held a meeting to introduce the reinforcements from Ningtai County to the police officers of the task force.

The police officers applauded hard for Jiang Yuan's sake.

The ones who applauded the hardest were Qi Changye and his team members. If there was no help, these people would be exhausted to death.

"Tell me about the case." Tao Lu didn't say too much nonsense.

The life of criminal police is very simple. In fact, it is a bit like soldiers who are constantly fighting. They keep going to the front line, occasionally come back to rest, and fight late at night from time to time, fight annihilation battles, break up battles, and fight pursuit battles...

Pre-war communication does not have much significance. Friendships are all established on the front line.

Qi Changye coughed twice and said, "Let me first talk about the situation of our review of the old case. The half-ton case is essentially a case of commercial espionage. The cause is that the source of half a ton of goods does not match the registration. Subsequent investigations found that this commercial espionage case, after that, the case gradually became complicated and began to involve some other domestic and foreign organizations..."

"The case was reopened based on the disappearance of a special agent..."

"The problem now is that we have re-interrogated the relevant persons involved in the case, but did not get any useful information. This is a more difficult situation to explain..."

Qi Changye finished speaking in one breath, then picked up the cup and gulped down the water.

The technician from the Criminal Science Center who had done the on-site investigation began to introduce the situation at the scene.

When he finished speaking, Tao Lu naturally looked at Jiang Yuan.

Jiang Yuan smiled, first looked at Wu Junhao and Liu Wenkai and others, and said: "Captain Wu, Captain Liu, do you have any ideas?"

"No." Wu Junhao answered immediately. In Ningtai County, he was not responsible for eating brains.

Liu Wenkai coughed twice and said, "I just got involved in this case. I wonder what directions we are investigating now?"

"We have several directions for investigation now." Qi Changye is the direct person in charge of this case. He stood up and said, "First, we are investigating the accessories of the deceased No. 1, hoping to find the source of her accessories and determine her identity."

"Second, we are also investigating the clothes on the bodies as much as possible. In addition, there may be textiles used to transport the bodies in the corpse pit, and we are also asking the laboratory to test them."

"Third, the problem of transportation. The burial site is far away from the city. To get here, transportation is definitely needed. Because it has been a long time, there must be no video surveillance. We tried to collect information about some illegal vehicles at the time. In addition, we collected information about some vehicles involved in the case and asked some people involved in the case. However, this direction has not been found yet."

"Fourth. Collection and comparison of DNA and other test materials. We are trying to collect and expand information about relevant personnel as much as possible, but there is no news for the time being."

Although he said a lot, Qi Changye was a little depressed and a little strong when he said this.

From the police's perspective, the possibility of getting a good result from reopening a backlog case to this extent is already relatively low.

In fact, if a normal backlog case behaves like this, it should not be reopened.

Most backlog cases are like this.

Due to time constraints, the information and evidence that were once easy to obtain are no longer available, and the existing clues cannot be implemented...

In other words, the discovery of multiple bodies forced Qi Changye to persist.

To be precise, it forced Qi Changye and his colleagues to persist.

At this time, many people set their eyes on Jiang Yuan.

Obviously, it is difficult to solve this case using ordinary thinking. This is not something that is difficult to judge. For any police station in any place, it is a difficult case to solve from digging up corpses from a few years ago in the wilderness.

Five more bodies than one would not make the case any easier to solve, it would just increase the pressure out of thin air.

Under the attention of everyone, Jiang Yuan sat up straight and said: "The dissection of the six corpses has been completed. Let me briefly explain the situation."

"Six corpses, a total of two female corpses and four male corpses."

"No. 1 and No. 3 are women. Corpse No. 1 died 8 years ago. There are many accessories on her body. She is about 22 years old. She is 1.7 meters tall. Zhan Gong is doing skull reconstruction on her, but it is estimated that it will take two or three people. It only takes months to make it possible.”

"No. 3 is also young, 23 and no more than 24 years old. He died about six years ago. There are remains of clothing in the tomb, but no match has been found yet. Two crowns have been made on the tooth, but the source has not been found."

"Among the four male corpses, the death time of No. 5 and No. 6 was more than five years ago, and the death time of No. 2 and No. 4 was also six years ago. Although it is not certain, judging from the time of death, except for the death of corpse No. 1, Eight years ago, the remaining five corpses died one after another five or six years ago.”

"In terms of the manner of death, preliminary results indicate that sharp weapons are the main means of killing. There are currently four sharp weapons identified, which were used on No. 1, No. 3 and No. 4, and No. 5 and No. 6. No obvious injuries were found on No. 2. Traces of sharp objects..."

"Several corpses have old fractures, but none of them have internal fixations such as steel plates or nails."

Jiang Yuan then conducted career and life analysis on several corpses. That is to say, a simple analysis based on the skeletal condition and injuries of the corpse is not very in-depth.

Although forensic doctors can make some judgments on the impact of the bones based on the deceased's habits during his lifetime. For example, if he has tennis elbow, he may have hobbies of playing tennis, squash, and badminton, or his work may involve painting walls or sculpting sculptures. Something like that, or poor typing or writing posture...

It is okay to make some judgments based on the performance of different bones, but not all corpses can be positively judged.

Some people may not have liked sports, had no hobbies, did not work very much, and have not been injured or sick...

If such a person does not carry his ID card with his body, it will be very difficult to identify him.

There are other people who may have been injured, and may have even undergone surgery, but the injuries are not distinctive enough, and there are no numbered internal fixations. The injuries are also in vain, and they do little to help identify the body after death.

Tao Lu frowned when he heard this, and Qi Changye was even more disappointed and frowned deeply.

After a while, Qi Changye said: "If you put it this way, there is still a lack of breakthrough clues..."

"It's more difficult to solve this case in a relatively simple way." Jiang Yuan nodded in agreement.

Qi Changye nodded subconsciously, then realized something was wrong and asked, "Is there a complicated way?"

"Yeah. Let's have a few ideas. Let's discuss it and see which direction of investigation is more appropriate." Jiang Yuan opened his notebook and was about to start a lecture.

People in a conference room sat down subconsciously.

Only Cui Qishan couldn't help but said: "Which direction should we choose? Of course we are sending troops from all directions! We have checked every direction."

"It doesn't have to be like this at the beginning." Jiang Yuanxiao glanced at Cui Qishan, and then continued: "I'll talk about the first option first. Victim No. 3 has had two dental crowns installed, namely...the third one from the left and the fifth one from the left "If she had her teeth installed in Beijing, she should have X-ray photos for comparison. In addition, she should have had two wisdom teeth removed, and the X-ray photos can also be found."

Qi Changye nodded: "Then we will visit all the clinics and hospitals in the capital to look for X-rays that match these two dental crowns?"

"Well, the workload will be huge. We used a similar plan when we investigated the case before." Jiang Yuan said, pointing out the problem and said: "If the victim had his teeth done in other places, this plan would be a waste of manpower. ”

Qi Changye couldn't help but frown. It is possible that the trip will be in vain, which is indeed not easy to accept.

"The second plan is to trace it back from the dog's point of view. Lou Fengguo, who understands dogs... will tell you about this later." Jiang Yuan pointed to the back.

Lou Fengguo stood up and saluted, then sat down again.

"The third option is that I can give more detailed death times for several corpses, accurate to the month. One or two corpses may be accurate to the week, but the error is slightly larger. You can investigate from this aspect." Jiang Yuan himself He was reluctant to do so and spoke relatively quickly.

Qi Changye heard it a little bit and asked: "It's hard to determine the time, right? What are you going to do?"

Jiang Yuandao: "You can first use ultraviolet spectrophotometry to make a judgment. After measuring the value, use the regression equation to calculate the lookup table, but the error is very large. I personally prefer to use the relationship between microbial communities, and there are ready-made PMI predictions Model... But it requires grinding bone meal, and sample processing is also relatively cumbersome. The error of most samples is more than 34 days. If you are lucky, you can get a conclusion of one or two weeks of error..."

Qi Changye felt dizzy after hearing this, and simply asked: "Do you think this plan is feasible..."

"Let's put it aside for now."

"The fourth is skull reconstruction. This will take a long time. If I do it, I can make one in two or three weeks, which is fast. Moreover, it may not be the best."

"What about the fifth?" Qi Changye was unsure. When there were no clues, he was eager. Now that he had a little plan, he was still difficult to choose.

Jiang Yuan said: "The fifth is similar to the first plan, because most victims have fractures, and X-rays of the same position can be checked. This only requires visiting the hospital. The hospital's database is good now, which is easier than finding a dental clinic."

"Do you prefer the fifth plan?" Qi Changye heard something.

Jiang Yuan smiled at Cui Qishan and said: "I think we can choose a few more investigation directions. I will follow the fifth one. For the others, how do you guys allocate them?"

A strong sense of tension spread instantly.

Chapter 769/1226
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National Forensic DoctorCh.769/1226 [62.72%]