National Forensic Doctor

Bai Shengsheng's fingerprints looked neat and tidy, like a little girl coming out of a boudoir. Google search reading

However, Jiang Yuan knew that this decent fingerprint, which looked like an African-American comedian a few hours ago, was the result of his own painstaking efforts and spending a lot of money using a computer borrowed from the Provincial Detective Corps. It took a long time and the LV4 level image enhancement skills were used to restore it to its current appearance. It can be called an epic plastic surgery, equivalent to transforming an orange cat into a ragdoll cat.

And if you want to count the people behind it, Bai Shengsheng's fingerprints will also turn black and red.

Jiang Yuan did a routine marking of feature points and stopped after scanning 300 fingerprints and finding no hits.

This fingerprint is quite special.

It was taken from the collar behind the deceased's neck. Judging from the technology of a few years ago, in order to do this, the on-site investigation technicians had to have pretty good skills.

However, the technician who was working on the case still failed to match this fingerprint.

Jiang Yuan stared at this fingerprint that looked like it had undergone plastic surgery and fell into deep thought.

He could imagine that when the murderer, the owner of this fingerprint, tried to strangle the deceased beneath him, the strength of his fingers would be stretched to the limit. Correspondingly, at the last moment, the deceased must have exerted all his strength, tightening his muscles and tightening his skin to resist the murderer's attack.

Therefore, this is a fingerprint that is deformed in both directions on a soft material. Now that the marked feature points cannot be found, the normal next step is to adjust the deformation. According to the grain lines and structure, some artificial adjustments are made. Basically, it is just a matter of trial and error to find a match.

Some fingerprints can be completed in a few months in the hands of a trace examiner, while some trace examiners can take several years to make continuous attempts with fingerprints from several major cases.

Jiang Yuan had also used a trial method before to compare fingerprints. That was because he had enough relevant information and conditions to conduct the test.

However, Jiang Yuan looked at this fingerprint over and over again, but he didn't feel that there was room for adjustment.

It's not that it can't be adjusted, but because both the applied force and the received force are deformed, it becomes much more difficult to try it out. Moreover, its current case trace inspection technician is obviously a master, and the other party has probably tried every solution Jiang Yuan can think of.

But without conventional plans, which direction should we go to achieve surprise?

The total is about one square centimeter of fingerprints. It is not easy to be played with over and over again for months and years, and still want to be surprising and come up with a move that no one has thought of before.

Fingerprints in murder cases are difficult to find.

During Jiang Yuan's contemplation stage, the system's translucent interface silently jumped in front of Jiang Yuan.

…

Mission: persistent pursuit

Mission content: During the fingerprint battle, try your best to detect as many cases as possible. Current progress (8*2)

…

Judging from the content, 8*2 should be the total number of cases and the number of homicide cases.

Jiang Yuan's thoughts were interrupted for a moment, and then he turned to think again. He glanced at the fingerprints from the corner of his eyes and couldn't help but think: Actually, there is no need to consider the entire fingerprint.

This fingerprint was taken from the neck, and the curvature of the neck, which may not be noticeable at ordinary times, is likely to be reflected when someone is about to be strangled to death.

Jiang Yuan simply cut out a small piece of the fingerprint and marked it.

It is equivalent to saying that most of the fingerprints that others have worked so hard to remove have been abandoned.

Just the most stable piece.

Such a small piece of fingerprint was carefully extracted with characteristic points and scanned in software. The resulting fingerprint made Jiang Yuan feel like he saw hope.

He now uses the Qingdao-style single-finger fingerprint analysis method to process this small piece of fingerprint.

The Qingdao-style single-finger fingerprint analysis method and the Chongqing-style single-finger fingerprint analysis method have their own advantages and disadvantages. One obvious difference is that the Qingdao-style single-finger fingerprint analysis method divides fingerprints into 68 subcategories, while the Chongqing type is 24. A small category.

This difference makes the Chongqing style better to buy, while the Qingdao style is more suitable for manual brushing.

One fingerprint or hundreds of fingerprints were swiped in a few seconds.

After brushing, Jiang Yuan sat up straight, stared at a fingerprint, and compared it carefully.

Li Zemin next to him noticed it and stopped what he was doing to look at Jiang Yuan's operations.

He kind of wants to steal from his master.

Jiang Yuan had no intention of blocking it.

Fingerprint comparison is a very personal task, especially the processing of difficult fingerprints. After achieving this step, judgment is more important than skill.

Skills can be learned, but judgment involves many things.

Li Zemin was still thinking about Jiang Yuan's thoughts. At this time, he saw that Jiang Yuan moved the mouse and actually chose "identify the same".

"You won the competition?" Li Zemin was surprised.

He knew that Jiang Yuan was comparing a murder case.

Jiang Yuan took a sip of tea, moistened his throat, and then said, "Then take a look and see if you are successful."

"That's right." Li Zemin then turned back to look at his screen, and heard "ding-dong" sounds coming one after another.

It’s a nice morning, and many people have their notifications turned on for new messages.

Now that I saw it, many people clicked it to take a look.

Jiang Yuan's name was like a cup of cool coffee poured on everyone's heads.

Comfortable.

Eye-catching.

Full of energy.

Li Zemin looked at the fingerprint image carefully several times, and then slowly nodded in agreement under "Confirm the same".

Turning around, Li Zemin looked at Jiang Yuan in great surprise and asked, "So fast? Is image processing so useful?"

Jiang Yuan smiled, how could he answer, saying that he was fast because his skills were really strong and he was already a provincial powerhouse? Or should we say that image processing technology should be combined with fingerprint technology, and that your image enhancement skills are at the level of a weak provincial-level expert?

"Smoke a cigarette?" Jiang Yuan took out a pack of soft Chinese.

"Let's go." As expected, Li Zemin changed the subject, immediately stood up, and followed Jiang Yuan away.

In front of the building.

In the antique pavilion, several smokers from the provincial department were smoking nicotine. When they saw Jiang Yuan and Li Zemin coming over, they smiled friendly.

Jiang Yuan also nodded, and Li Zemin and a Chinese team occupied the other side of the pavilion.

One of the smokers in the provincial department saw the soft Chinese in Jiang Yuan's hand and immediately frowned. Regardless of the eyes of his colleagues next to him, he directly said in a dissatisfied tone: "The conditions are so good? These days, the people in the units below are What are you thinking about? One by one..."

"I'm from Jiangcun." Jiang Yuan didn't let the other party finish his sentence, and handed over a Chinese stick in a very Jiangcun social manner.

The middle-aged man who spoke still maintained a serious frown and took the cigarette in a daze.

The expressions of the others were better, but they were also quite surprised to get loose smoke.

Li Zemin was not too used to the behavior of the people in the provincial department. Looking at this scene, he couldn't help but smile.

"From Qinghe?" The middle-aged man who had collected his cigarette confirmed.

"Yes, from Jiangcun, Ningtai County." Jiang Yuan calmly lit the fire and smoked a cigarette in front of several smokers.

Watching soft China being spat out worthless. Several people showed unbearable expressions, but considering that they were from Jiangcun, they were too lazy to complain.

"Jiang Yuan!" A policeman with his collar button fastened stepped out of the provincial building with great seriousness.

Jiang Yuan and others recognized him when they got closer, and said with a smile: "Liu Chu."

The person who came quickly was Liu Jinghui, a fourth-level provincial senior police sergeant who was known for his reasoning.

He walked into the pavilion, looked at the middle-aged men who were puffing away, reluctantly nodded, and said hello: "Hong Chu."

Turning around, Liu Jinghui asked, "I just saw the police alert. Did you hit the fingerprint on Wu Long Savage's collar?"

From Liu Jinghui's description, you can tell that he is extremely concerned about this case. Not only are relevant reminders set, but the victim's condition is also clearly understood.

Jiang Yuan said without hesitation: "We found a murder case. The deceased was found in Wulong Mountain."

"That's it, that's it..." Liu Jinghui clicked his fingers twice, his emotions rising visibly.

His colleagues from the provincial department looked at Jiang Yuan curiously and said in surprise: "You won a murder case? Are you here to participate in the fingerprint battle?"

"Yes. People from Qinghe." Jiang Yuan replied using the term he was just asked about.

Everyone understood. The middle-aged man who was the first to speak up laughed and said, "You are quite temperamental, but again, how can people in Jiangcun have no temper? I'm sorry just now, I thought you were seconded to live here. "Young man, I didn't expect you to come here for a fingerprint battle. It's rare to see such a young fingerprint expert."

"It's a murder case." The person next to him pointed out his thumb and gestured.

Li Zemin helped: "Three."

"Three what?"

"Three murders were won in the competition." Li Zemin raised three fingers.

Everyone clicked their tongues in amazement.

The middle-aged man took a sip of the newly lit Zhonghua and said with a smile on his face: "You are really blind to the sight of Mount Tai. Let me meet you, my name is Hong Wanjun. Brothers call me Hong Qi, Hong Qigong's Hong, Hong Qi Gong’s seven. It refers to my temper. At best, I hate evil as much as hatred, but at worst, I offend people everywhere..."

Jiang Yuan shook hands with him and exchanged WeChat IDs.

Liu Jinghui, who was next to him, was also full of emotions at this time. Taking advantage of a gap, he said: "Jiang Yuan, you have to follow me."

"Where to go?" Jiang Yuan was confused.

"Investigate the Wu Long Savage Case. This case is definitely not a simple case of dumping corpses in the wild." Liu Jinghui said firmly, "I think there is something hidden in this case, and it is probably a series of murders..."

"There are still corpses?" Jiang Yuan was surprised and thought, he didn't see it in the case description.

Liu Jinghui said seriously: "There is no corpse. It is possible that other corpses could be dumped in a better place. But judging from the handling of this corpse, the person who killed the corpse and dumped it has rich experience. Moreover, this corpse's There is also a certain degree of coincidence in the discovery. It was discovered by a lost traveler. It is not on the road patrolled by mountain rangers, and there are no conditions nearby to travel with it..."

"Now that we have won the competition, shouldn't we arrest people first?"

"It's been too long." Liu Jinghui shook his head slightly and said, "You should be able to see for yourself that the suspect in Bizhong has been released for six years after serving his sentence. There has been no news in six years, and he was involved in a murder case. This kind of person , it is difficult to find it directly. However, the Wu Long Savage case has finally opened up a new direction of investigation. I now invite you to join me in forming a new task force..."

"Liu Chu, I'm participating in the fingerprint battle." Jiang Yuan interrupted Liu Jinghui. He didn't like Liu Jinghui. In his opinion, reasoning was neither mysterious nor reliable. Liu Jinghui's model of reasoning first and then providing evidence was not even approved by him. Under such circumstances, Jiang Yuan was naturally not willing to form any special task force with Liu Jinghui.

Liu Jinghui looked at Jiang Yuan with affection in his eyes and said word by word: "I'll wait for you!"

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