civil forensic

Chapter 263

Jiang Yuan went home from get off work early again.

In Ningtai County, there have been no dead bodies, no homicides, or even abnormal deaths in Ningtai County recently.Several areas in the city where cases often occur are also calm, and even the loss of electric vehicles rarely occurs.

If it is a forensic doctor from another county, if there is no corpse, it will naturally be transferred to other criminal officers. If the demand of the criminal division is insufficient, it will naturally be transferred to other criminal police officers.

Jiang Yuan didn't have such experience and understanding, and Huang Qiangmin and others didn't have such demands on him, everything seemed natural.

When I got home, I saw a lot of messages in the WeChat group.

"Qinghe Technology Sharing Group" has a red dot of @自己.

Daily depression: [@水工.Thanks to Comrade Jiang Yuan for completing the key fingerprint comparison work.Thank you for your cooperation and dedication. 1120 The high fall case of Maixin factory was solved, and the murderer has been arrested! 】

Trace inspection Li Rui: [Excellent, break it if you say it! 】

Forensic doctor Wang Lan: [Congratulations to Jiang Yuanyong for making another new contribution. 】

Southern Expedition Northern War: [Jiang Yuan is not bad, he is a quick shooter. 】

Trace Inspection Li Rui: [@南益北战, this word is prone to ambiguity. 】

Southern Expedition and Northern War: [Within seven days, far and fast, beyond seven days, far and fast and accurate! 】

A group of people chatted happily.

Jiang Yuan pulled to the bottom, just about to return to his daily sluggishness, that is Comrade Wan Baoming who came today.

At this time, Wang Lan, the forensic doctor, spoke again: [@daily sluggish, what did Team Huang say?It must be hard to talk. 】

Daily sluggishness: [To be honest, the yellow team is quite awesome in life, and they cooperate well. We are ready to further cooperate with them in depth. 】

Forensic doctor Wang Lan: [Huang team?Wow? "]

Daily sluggishness: [Huang Dui is actually a very simple person, you will know after a long time of contact, although he is quite demanding, but well, in fact, there is a certain rationality...]

When he said this, the group became cold.

No one disagreed with what he said, but certainly no one agreed with it either.

Everyone has seen Huang Qiangmin, and some people have even tasted his smile. Is it a simple smile?
At this time, Jiang Yuan spoke: [@daily sluggish, you're too polite, it's what I should do. 】

Daily sluggishness: [Haha, it’s amazing to be able to make it, and look forward to the next cooperation. 】

Jiang Yuan: [I'm a little curious, you probably aren't from Qinghe City, and you don't work in Qinghe City, how did you join the Qinghe City technology sharing group? 】

Daily sluggishness: [In the Lanzhou Beef Noodle Restaurant, there are neither Lanzhou people nor beef. 】

Jiang Yuan thinks the key point is the word "mixed".

Think about it, Wan Baoming's working status is really a bit chaotic.In terms of position, he became the deputy director of the Criminal Technology Center of Changyang City, the capital of the province. The rank is not low and the conditions are good.In terms of specific operations, he can make Huang Qiangmin spit out, seemingly allowing Huang Qiangmin to take advantage, but in fact, he has achieved his goal.

In this day and age, criminal investigation experts are not young or old.A well-known criminal policeman with the title of criminal investigation expert of the Ministry and Commission, travels 250 days a year, solving cases all over the country.

Ou Guisheng, one of the Eight Tigers of criminal investigation, completes 200 cases a year, personally participates in the cracking of 100 cases, and averages one first-class merit and two second-class merits every year.

But even so, forensic experts are not enough.Moreover, scarce resources are not easy to fight for.It often requires the director level, or even a higher level, to help coordinate.

Wanbaoming's ability to find help from outside forces at its own level is not a skill.

As for the little expenses that Huang Qiangmin seemed to have earned, it was nothing compared to a murder case.

Jiang Yuan made a wave of analysis on Wanbaoming through the screen, and also raised his vigilance.

Fundamentally speaking, Wan Baoming is obviously not the one who will suffer losses, so if he is so active in reaching an agreement with Huang Qiangmin, the case he will present tomorrow will definitely not be easy.

Or, he has a stressful case in his hands, but he just didn't talk about it.

Jiang Yuan is not afraid of these, but he also had dinner with his father early, played with the computer and mobile phone for a while, and went to bed early before 11 o'clock.

For a young man of his age, going to bed an hour earlier than before 12 o'clock, the respect is considered full.

The next day.

Jiang Yuan drove the Mercedes-Benz G and went straight to Changyang City.

Wan Baoming paid a lot of money to invite him to go to Changyang City to handle the case, so he definitely wouldn't be too low-key, otherwise, how would those expenses be calculated?How to persuade colleagues and leaders.

Therefore, Jiang Yuan, who was expected to attract attention, didn't wrong himself, and felt a little bit more free from scruples.

Around the same time, Wang Zhong, Mu Zhiyang, and Wei Zhenguo drove the real old car in the team, a 15-year-old Santana travel version, with a trunk full of various police equipment and multiple investigation boxes.

In fact, the latter can also be provided by Changyang City, but Huang Qiangmin thinks it is unnecessary and loses his reputation.

He sent two young men, Wang Zhong and Mu Zhiyang, to serve as Jiang Yuan's younger brothers.Of course, he couldn't speak so bluntly, he only told Wei Zhenguo.

Wei Zhenguo naturally escorted Jiang Yuan.No matter how good it is, it's a criminal case, no matter how good Wan Baoming said, someone needs to take care of Jiang Yuan, so that Huang Qiangmin can rest assured.

In most criminal cases, the cracking process is very calm, just like fishing for fish in a small pond.You can fish in an ordinary way, electric fish in a more aggressive way, catch fish with too many people, and even release water to pick up fish when necessary.

However, there are always some criminal cases with a very small probability and a certain degree of danger.The danger may come from poisonous snakes in the water, or from accidents on the shore.And the most frightening thing is that he walked on the wrong water surface and walked from the pond to the sea.

Huang Qiangmin has been a criminal police officer for decades, but he has never encountered real danger a few times.

But one thing to say, he has worked in the county town all his life, and he is not very clear about the situation in the provincial capital.Furthermore, the case that he was invited to participate in would not be too simple, and Huang Qiangmin was not at ease if the young Jiang Yuan went directly to make troubles.

The two cars converged at the entrance of the expressway out of the city, and Wei Zhenguo immediately transferred to the Mercedes-Benz G, and instructed his apprentice Mu Zhiyang and Wang Zhong to drive safely.

Mu Zhiyang and Wang Zhong agreed, and Mu Zhiyang said obediently: "Master, don't worry, our car shakes when it reaches 90 on the highway, and the body is hard, so it's very safe."

"If the speed exceeds 70, don't open the window. The wind on the high speed will blow your face, and the wind noise is also loud. If you really want to open the window, you should open a little in the co-pilot. The right rear seat Open a little, it's better." Wei Zhenguo told the two of his experience, got into the co-pilot of Big G, and adjusted the temperature to 20 degrees.

The sound of the air conditioner suddenly became louder, and the cool wind blowing straight made Wei Zhenguo shiver, showing a happy smile.

……

Changyang City.

Wan Baoming was waiting in front of the Municipal Criminal Science and Technology Center.

Several criminal policemen also came over purposely, stood in front of Wan Baoming, and observed Jiang Yuan and Wei Zhenguo who came down from the big G.

The director of the center, Li Zhiyuan, wore regular clothes, a clean white shirt, and looked very formal. After shaking hands with Jiang Yuan and Wei Zhenguo, he said, "If you need anything, you can ask Lao Wan. If you really need it, you can ask me for it." No problem. Hahaha..."

Li Zhiyuan followed up with a word, and withdrew under the pretext of "there is a meeting going on".The other detectives just looked at Jiang Yuan and dispersed.

Wan Baoming took over Jiang Yuan and the others, blinked and said, "The white shirt feels different."

"It's oppressive." Jiang Yuan said truthfully.The directors of the Ningtai County Bureau are all blue shirts, and ordinary criminal police don't see white shirts throughout the year.

However, the levels of provincial capitals are different after all.

Jiang Yuan asked: "Does Director Li do technology?"

"I've done it before. And I'm also a forensic doctor." Wan Baoming himself was a trace examiner, so he looked at Jiang Yuan and said with a smile, "Forensic doctors are ruthless people."

A few words of chat brought everyone closer.

Wan Baoming looked at Wei Zhenguo again, and said with a smile: "The provincial capital city is relatively large, and the situation is also relatively complicated. I won't go into details. We can solve the case anyway. Do you think so?"

"Is there a cooperating criminal police team?" Wei Zhenguo asked.

"Captain Yu still trusts Jiang Yuan very much. If you need anything, you can come to me or directly to Captain Yu." Wan Baoming said, and explained: "Captain Yu has a meeting to hold, so there is no way to come. Well, he really has a meeting to hold."

Several people looked at each other and smiled.

Wan Baoming led the two of them into a small office, and saw that it had been tidied up. There were two computers, a file cabinet, and an evidence cabinet with small locks.

"See what else is needed, I'll have someone move it here," Wan Baoming said.

"Two camp beds are needed. If there are none, an anatomy bed is also fine." Jiang Yuan said, "I might take a rest in the office once in a while, so it should be fine."

"Of course. However, we have a lot of camp beds, and we also have dissection beds. If you forensic doctors have special hobbies..."

"That's not enough."

"That's good." Wan Baoming laughed: "I thought you, like our director, would sleep on the dissecting bed every once in a while."

Jiang Yuan was stunned for a moment: "Director Li still has this hobby?"

Wan Baoming said: "It is said that the cold dissecting bed is good for thinking and dissipating heat. The reason why noble vampires sleep underground is because it is cooler underground, which can lower the temperature of their brains. The nobles want to review documents and the like, which belongs to medieval mental work. Because the dissecting bed is made of stainless steel, it goes a step further and can also remove moisture.”

Jiang Yuan's brain temperature was almost overheated: "This is what your director Li said? The reputation of our forensic doctor is..."

"No, this is what everyone arranged for Director Li, and it is not allowed to say that now." Wan Baoming said solemnly: "This is what Director Li specially emphasized during the meeting."

"Let's handle the case." Wei Zhenguo couldn't listen anymore.

Seeing that both of them were relaxed, Wan Bao smiled and asked, "Is Jiang Yuan willing to do fingerprints?"

Jiang Yuan asked, "Are there any other cases?"

"What kind of case do you want?" Wan Baoming asked with a smile.

Jiang Yuan pondered for a while.

Which type of case to do, Jiang Yuan has actually considered it.

Of course, fingerprints have considerable advantages, and his fingerprint skills are also strong enough. The high-falling case that was only cracked two days ago can be used as a testimony.

But the limitations of fingerprints are also obvious.

In addition to factors such as the fingerprint library, the probative power of fingerprints is also a problem.

First of all, the fingerprint itself is indirect evidence. It can only prove that the suspect has been there, but cannot prove that the suspect participated in the case.

Secondly, there may be irregularities in the location and method of fingerprint extraction, which makes the probative power of fingerprints questionable.

For a fingerprint, if it landed on the murder weapon, the probative force must be first-class, basically locking the suspect.But if it just landed on the murderer's vehicle, then the probative power will be inferior. When it comes to the crime scene, if it is a public space like a coffee shop, so many fingerprints can be obtained, it needs external conditions to judge. Which fingerprint is the suspect's.

DNA is actually the same. Why do the police like to look for semen spots so much? Why do forensic doctors know the nature of toilet paper so well? It’s because normal people don’t spread semen spots everywhere.

The criminal center in Changyang City is quite professional. They are of a high level and cooperate with experts from the provincial department a lot. If there are unsolved backlogs, there is a high probability that they will be transferred to the provincial department.

In this case, the difficulty of fingerprints in Changyang City itself is relatively high. Moreover, the fingerprints they delivered to the provincial government and found out for consultation with experts are at least selected and have very high probative power.

Jiang Yuan is now sitting in the office of the Changyang City Criminal Division Center, and if he scans their fingerprints, there is a high probability that they will find some fingerprints with low probative power-specifically referring to murder cases.

But if there is no murder case, his appearance will be meaningless.

Even if he solves 100 theft cases, even if the theft cases are very difficult, he will not be put in the eyes of the Changyang City Criminal Police Team.

They have many small cases that have not been solved, maybe they can't be solved, or they haven't invested resources, but in the eyes of the other party, these cases are all "I can get full marks as long as I am careful" cases.

Jiang Yuanlai has one and only one mission, which is to solve murder cases.

It's not impossible to do fingerprints, but as a good start, Jiang Yuan must show his strongest combat power.

LV4的青岛式单指指纹分析法+LV3的重庆式单指指纹分析法+LV5的影像增强也是超级强了，但没有LV5的血迹分析+LV3的足迹+LV3的法医临床学强。

Because fingerprints and image detection are both obvious sciences, bloodstain analysis + footprints are just the opposite.

Of course, in the Ningtai County Bureau, there may be no difference between fingerprints and footprints.Comrade Lao Yan, who used to be the strongest trace inspection in Ningtai County, had the most fingerprint skills at LV0.9.

But in Changyang City, there are at least level 3 fingerprint experts. Jiang Yuan also met them during the fingerprint battle.

In terms of image reconnaissance, their highest combat power may only be LV2, but when doing fingerprints, the main force must be fingerprint skills, and the image enhancement of LV5 can be regarded as an auxiliary.

Replaced with bloodstain analysis + footprints.

These two skills were outstanding 20 years ago, and they belonged to the old generation of criminal investigation experts.

But now, these two skills can't be said to be lost, it can only be said that they are used less and less.Even if the master teaches the apprentice, if there is not enough material, it will not work.

It is equivalent to saying that if fingerprints are to be done, the criminal police team in Changyang City will work as a team and ask experts for help, which is comparable to Jiang Yuan's strength.Normally, it might be a little bit close, but in terms of homicide, the loss will not be too much.

As for the fingerprints that they couldn't make, Jiang Yuan couldn't guarantee that he could.

It can be replaced by bloodstain analysis + footprints. For Jiang Yuan, the scenes that they can't do may be a piece of cake.

It is equivalent to fingerprint + image enhancement, Jiang Yuan has 800 points, and the Changyang City Criminal Police Team forms the strongest battle group, which can have 700 or 750 points, and it is even possible to explode to 800 points.

But on the route of bloodstain analysis + footprints + forensic clinic, Jiang Yuan still scored 800 points, and the Changyang City Criminal Police Team searched the whole province to form the strongest battle group, which was just over 400 points, and 500 points.

Although it is not against one's own family members to solve murder cases, it is meaningful to at least be better than one's own family members in solving backlogged cases.

Otherwise, if everyone's strength is the same, and they haven't solved the current case, how can you solve the backlog.

In other words, there are fewer cases of bloodstain analysis + footprints, otherwise it would not be impossible to pass down the great master.

But Jiang Yuan believes that in the huge Changyang City, there are always some perverts who think they are independent, and they are actually the same perverts as other independent perverts.

"See if you have such a case. There is a lot of blood at the scene, there are bloody footprints, and the scene is very comprehensive." Jiang Yuan briefly described.

"There are not many such direct violent crimes now." Wan Baoming said something first, and then asked, "Forensic doctor Jiang has more experience in such cases?"

"I'll be more confident." Jiang Yuan said and walked to the computer.

Wan Baoming smiled, walked over to turn on the machine, but said directly: "513 opened the door and stabbed the murder case. Would you like to see this first?"

Cases that can be named directly, needless to say, are serious and difficult cases.

Jiang Yuan asked: "What's the specific situation?"

"Let me introduce briefly." Wan Baoming said, "On May 5 three years ago. The victim was an old man living alone in a local township. At that time, someone called to read the electric meter, and the old man opened the door. He was right in front of the door. There was no dispute. He was stabbed in the chest with a knife. He died silently. When the body was found by neighbors, he had been dead for more than an hour."

Wan Baoming looked at the dignified Jiang Yuan and Wei Zhenguo, and said, "Footprints were extracted at the scene. There were a lot of blood and half a bloody footprint, but the traces at the scene were quite chaotic because of neighbors and other people watching. How about this case?" ?”

"This case is too difficult." Wei Zhenguo cried out, afraid that Jiang Yuan would impulsively agree.

"Look at the photos of the scene first." Jiang Yuan stepped aside and asked Wanbao to open the intranet.

(End of this chapter)