Chapter 1331

When Jiang Yuan first arrived in Ningtai County, he worked with Wei Zhengguo to handle many cases.

And as the deputy squadron leader of the Sixth Squadron of the Ningtai County Criminal Investigation Brigade, the case of Wei Zhengguo's wife's disappearance not only caused a sensation that year, but Jiang Yuan had also always kept it in mind.

Jiang Yuan had long ago memorized the fingerprint features of Wei Zhengguo's wife, Li Huimin, and as his fingerprint technology improved, he also memorized the tertiary features of Li Huimin's fingerprints.

Therefore, even though the fingerprint Jiang Yuan collected at this moment was less than one-third of a normal fingerprint, Jiang Yuan recognized it immediately upon seeing the tertiary fingerprint features.

Jiang Yuan looked up and looked at both sides, but he was not in a hurry to explain.

This matter could be said to be very serious for the police in Ningtai County Bureau, and even if he was infinitely confident in his memory, he had to treat it with repeated care.

Jiang Yuan first checked the evidence bag and the label on it, then asked Wang Chuanxing to get his laptop, preparing to compare the data inside and confirm it again.

The intranet naturally had Li Huimin's fingerprints and related information, but the intranet's stored data had its own rules and was far less rich than what Jiang Yuan had collected himself previously.

Just like the tertiary features of fingerprints, ordinary fingerprint databases do not store them. They are just like biological information such as voiceprints and irises, and are only used for one-to-one comparison.

Jiang Yuan only obtained very few residual fingerprints, so he needed high-definition fingerprints for comparison even more.

On the other hand, it was also because Jiang Yuan's screen was always open for people to see. Checking Li Huimin's fingerprints at this moment was not suitable for people to see; it was only better to announce it after it was confirmed.

Wang Chuanxing quickly went to get Jiang Yuan's laptop and placed it obediently in the corner, letting Jiang Yuan view it with his back to others.

The police at the scene were sensitive and suspicious about such matters. A colorful, exquisite heart, besides being unable to handle wives and children, could almost smell the scent when dealing with cases.

Many people started to lower their heads to do their own things, occasionally glancing at Jiang Yuan from the corners of their eyes.

Jiang Yuan checked the fingerprints of Li Huimin he had previously obtained again and again, still not speaking immediately, but returned to the evidence box, called Wang Chuanxing over and said: "You come and film."

"Yes." Wang Chuanxing didn't say a word, picked up the camera, adjusted the parameters, raised it, and signaled to Jiang Yuan with his eyes.

Jiang Yuan put on his gloves again, and under the camera, took the female victim's leather shoes, then took a knife, and carefully dismantled the shoe upper, leaving only the sole.

Footprint identification, what is truly identified is actually the pressure surface. The pressure surface will not only exist on the footprint but will also remain on the sole itself. In fact, obtaining the shoe and observing the pressure surface of the sole is a more authoritative trace than the footprint.

All wear and tear on the sole is caused by the pressure of the user.

Through this information, Jiang Yuan could easily determine the user's height, weight, age, gender, and walking habits.

Jiang Yuan didn't even need to match this information with Li Huimin; it was enough to match it with the old shoes Li Huimin left at home. And Jiang Yuan had long ago memorized the information on the pressure surface of Li Huimin's old shoes.

After repeated confirmation, Jiang Yuan had no more doubts, stood up, came to Huang Qiangmin's side, and whispered: "The female victim should be Li Huimin. Wei Zhengguo's wife."

He didn't even use titles like Team Leader Wei at this time, just for accuracy.

Huang Qiangmin's pupils shook violently. After several seconds, he asked: "Are you sure?"

It wasn't that he didn't believe Jiang Yuan; just like Jiang Yuan treated fingerprints, facing such important information, he subconsciously wanted to confirm it clearly.

Jiang Yuan nodded heavily and said: "Confirmed. Should we ask Team Leader Wei to confirm the style of the shoes?"

"The style of the shoes should be in the file." Huang Qiangmin said first, then slowly shook his head and said: "Don't be in a hurry. Let's confirm again. The other victim is a male deceased, right? Can the identity be confirmed?"

"I haven't started looking yet." Jiang Yuan said.

"You look at what information there is first." After Huang Qiangmin said this, he turned around, closed the door of the conference room, and said to everyone: "Jiang Yuan has a new discovery. Keep the specific situation confidential for now. I will reiterate the confidentiality discipline..."

In front of Anwan City Bureau Chief Wu Jingwei and other leaders, Huang Qiangmin solemnly said words that everyone understood.

Whether it was Zhang Limin from the Pingzhou Provincial Department, City Bureau Chief Wu Jingwei, or the invited experts at the scene, everyone listened silently to the words of Huang Qiangmin, the political commissar of the out-of-town county bureau, without rebuttal or questions.

Jiang Yuan beckoned Wang Chuanxing over, continued to dismantle the male victim's shoe upper, and then checked the pressure surface and took photos.

Soon, Jiang Yuan returned to Huang Qiangmin's side and whispered: "Height 1.75 meters, age 38, weight about 70 kilograms. He should be the one who often drove this car."

"The driver?" Huang Qiangmin shook his head as he said this: "Not enough yet. Don't notify Wei Zhengguo for now. We already know the information he knows."

As an old criminal policeman, Huang Qiangmin would instinctively suspect everyone.

Wei Zhengguo was his old subordinate and also his old colleague. When his wife disappeared, Huang Qiangmin also immediately organized elite forces and established a special task force to investigate.

But now, finding his wife's corpse, and there was another male corpse of similar age next to it, Huang Qiangmin couldn't help but think more.

If the wife is dead, the first suspect is the husband. This doesn't mean Wei Zhengguo is the primary suspect, but Huang Qiangmin's primary task is certainly not to pass the news to Wei Zhengguo.

"Let's have a small meeting." Huang Qiangmin thought for a while and added: "Call Liu Jinghui over."

Liu Jinghui was from the Shannan Provincial Department and was an old criminal policeman good at reasoning, so it was just right to use him at this time.

While his subordinates were doing as told, Huang Qiangmin came to Anwan City Bureau Chief Wu Jingwei again and said: "We encountered a clue to a cold case. Let's discuss it ourselves first. The follow-up should be based on this case. It won't be counted as part of your case."

"No problem. No need to calculate so finely. Let's make it 55." Wu Jingwei was not polite either. Old Huang's asking price was so high, and now that it was their own case, naturally, they had to calculate it.

"Okay. Please keep it confidential for now." Huang Qiangmin agreed immediately.

"Good." Wu Jingwei agreed.

The two quickly finished their exchange. Huang Qiangmin picked a few more people, went out together, found a room at random, closed the door, and discussed it.

Liu Jinghui hurried over. He had also been staying in Anwan City for the past few days. Although there was no case that required his participation, he didn't want to go home and guard his wife either. A man, staying with his wife and children all day long, what's the point.

When he was led into the small room, Liu Jinghui still had a smile on his face, but after discovering that the expressions of Huang Qiangmin and Jiang Yuan were unusually serious, Liu Jinghui quickly restrained his smile.

Liu Jinghui thought for a moment and asked: "Did a case go wrong?"

"Jiang Yuan, you tell Old Liu." Huang Qiangmin held his mobile phone, ready to communicate with his superiors at any time.

Jiang Yuan explained his discovery in a few words, without describing Huang Qiangmin's worries.

Liu Jinghui guessed it all at once.

He came from the Provincial Department and had been running to various criminal investigation teams for many years. He knew old criminal police captains like Huang Qiangmin too well. He took appeasement as the priority and said with a smile: "Old Huang, are you worried that Wei Zhengguo is involved in the case? Does he have a motive?"

Huang Qiangmin was in a bad mood and asked back: "Haven't you ever wanted to kill your wife?"

Liu Jinghui was stumped. He thought for a while and whispered: "Not to this extent... No... You are worried and confused. This question is very simple. Even if you want to consider Wei Zhengguo's problem, I'll suggest a plan. First, does Wei Zhengguo have the time to commit the crime? If this car was driven from Ningtai, it must be more than 1,000 kilometers, right? Half of it must be national roads. If Wei Zhengguo drove without sleep or rest, it would take more than ten hours, right? Plus his return time, if he committed the crime, he certainly wouldn't dare to take a plane. No matter how you calculate it, there would be a one-day gap."

Liu Jinghui: "After Wei Zhengguo's wife disappeared, did Wei Zhengguo leave alone for such a long time? Is there information before his wife disappeared? The time of disappearance is basically determined."

Huang Qiangmin's expression relaxed all at once, as if something in his body had been drained away.

Huang Qiangmin hurriedly said: "Indeed, after the case, Old Wei was always with the special task force. Even if there was time for independent action, it was at most a few hours."

Liu Jinghui nodded: "Second, was the car driven from Ningtai? Can the car's information be checked?"

"It's hard to check from the car." Wang Chuanxing said: "This is a case of Anwan City Bureau. After the incident, the special task force considered investigating from the direction of the car. The license plate was removed, and the vehicle identification number was gone. The murderer is an old hand and handled it specially."

"They couldn't find the car because they were checking Pingzhou's cars. Does our Ningtai County or Qinghe City have any records of lost cars? 15 years ago... This car is a Xiali, right? A Xiali 15 years ago was worth quite a bit of money. If the car was lost, someone must have reported it to the police. See if there is a matching report record. That would likely determine the identity of the male victim." Liu Jinghui's reasoning broadcast cleared up the case like peeling silk from a cocoon.

"I'll make a call." While Huang Qiangmin breathed a sigh of relief, the pressure of solving the case replaced his anxiety.

Jiang Yuan gave a look, and the several police officers of the cold case special task force, who had long been trained, immediately began to investigate the information mentioned by Liu Jinghui.

With feedback from all sides, Huang Qiangmin's expression gradually returned to normal, but it was even more seriously terrifying. He quickly took out his mobile phone and began to report to his superiors.

Jiang Yuan also continued to flip through the evidence box.

Inside, besides physical evidence, there were a large number of scene photos. Although digital cameras could be used 15 years ago, they were not very popular. Whether it was a USB flash drive or SD storage equipment, they all had corresponding storage times, generally 5 to 10 years. Therefore, to deal with today's situation, the photos taken with digital cameras back then had to be burned onto discs, which was also expensive and troublesome.

Jiang Yuan focused on checking the scene situation of the corpses and the autopsy report, trying to think about the problem as a forensic doctor.