Rebirth of the God-level Xueba

Marle is an unremarkable Nordic town.

It has a gentle and clean river, but it is frozen six months of the year and often has floating ice the rest of the time. It has a nice fitness walk, wide and straight, with nice shock-absorbing boards, but three people died on it.

Marreux is best known for its lithographs, dating back to the Viking Age, but no one bothered to see them. They may be works of art or antiques, but no cameras came to this icy city until someone's blood soaked the ground.

Yang Rui jumped out of the car, and there was crunching snow under his feet.

Looking around, Yang Rui can see the distant snow-capped mountains and the houses at the foot of the mountains.

"It's such a wide place." Yang Rui praised: "There must be a distance of 100 meters between a house and a house."

"Swedes like to live far away. We don't like to hear the voices of our neighbors, whether it's talking or shooting." Officer Ackerman closed the car door heavily and followed behind Yang Rui.

Yang Rui’s PCR technology identified Ackerman’s hair, which made him an instant fan of PCR technology. Not only that, but he also found information to read by himself—Swedes are not a nation that likes to socialize, they love to do things The best thing to do is to squat in the corner of the world and study your own gadgets.

"There are 874 permanent residents in Marle," Ackermann asked. "Where do you want to start?"

"We have to delineate the residents of the small town first. If it is not done by people from other towns, we can directly collect the DNA of the residents. To be on the safe side, please do it under our guidance." The content of Yang Rui's explanation has actually been communicated before. , just repeating the description.

Ackerman needed just such a reiteration.

PCR is a new thing for everyone, and everyone has to confirm it repeatedly, so as not to make a wrong step and affect the result-in fact, Yang Rui emphasized this point.

The townspeople were notified in advance and gathered quickly.

This may be unimaginable in the United States. Americans in a town cannot be expected to gather on time, but the Swedes can, no matter it is a month in advance or a day in advance, as long as the time is determined and confirmed, will get everyone.

The descendants of these Vikings are silent,

But as if preparing to board the boat, he showed up at the meeting point on time.

"Isn't it unexpected?" Huang Mao walked behind Yang Rui and said, "Look at these Swedes, they all look ordinary. Who would have guessed that there could be a murderer among them."

"It can't be said to be ordinary. Many people are over 1.9 meters tall." Yang Rui shrugged.

"It's about the same as you." Huang Mao looked up at Yang Rui enviously, and said, "You said that you are as tall as the Nordics. No, you are taller than many Nordics."

"God-given." Yang Rui said sincerely.

Huang Mao laughed.

"For a while, we will use a cotton swab to stir in your mouth without damaging your body. This is the latest technology and is used for necessary testing..." A senior police officer held a microphone and asked When the residents introduced the situation, his voice was flat, as if he was talking about an ordinary little thing.

The residents also seemed to be listening to an ordinary trifle.

Instead, Yang Rui stood below, picked up his red flag camera, waited for the first resident to start sampling, and desperately pressed the shutter.

In the era when there were only less than 30 photos in a roll, his shutter couldn't be pressed very quickly.

Yang Rui laughed to himself, opened the back cover of the camera, carefully put away the film, and said to Jing Yulan next to him, "From now on, these will be official historical materials."

"Historical data?" Jing Yulan was wearing a LV bag, a wide-brimmed lady's hat, and a pair of sunglasses on the bridge of her nose to prevent snow blindness. From a distance, she looked like a beautiful girl who was at the forefront of fashion. .

Yang Rui put his hands on her waist, hugged her lightly and let go, said with a smile: "This is the first time in human history that PCR is used to handle a case. Of course it is a historical material. This will definitely go into a museum in the future."

"You think it's very important, what if others don't?" Jing Yulan joked with a smile.

Yang Rui thought for a while, and said, "Then I will build a museum by myself." Yang Rui's answer was very clear, which made Jing Yulan a little dazed.

Kaka.

Yang Rui pressed out another roll of photos in an instant.

During the entire sampling process, Huang Mao, Tu Xian and others supervised and assisted the whole process.

Sampling is the most important step. For PCR itself, there are very few mistakes. However, once a sampling error occurs, it is all over.

Yang Rui looked relaxed, but in fact he was very nervous.

If the murderer wasn't among the residents, if the sampling was wrong, if the technical staff had a problem with the operation... what he wanted was a big news, not a big scandal.

However, this is how things are done, you have to accept acceptable risks, if you can’t accept it, end it early, if you can accept it, you can’t regret it.

Marle's journey was soon over.

When Yang Rui returned to Stockholm and just started sorting out the samples, Director Sherwood called him into the office and asked, "Mr. Yang Rui, how long will it take to receive the results? I mean, how long will it take to determine the murderer."

"If you are lucky, tomorrow, if you are not lucky, it will probably take two or three days." Yang Rui said: "Our PCR machine is not enough to do all the samples at once."

"That is to say, it will take three days to make all the samples? You can only make 300 samples a day?" Director Sherwood calculated and asked, "Can you find more?"

"Actually, we can only do less than 200 a day, and we don't need to do all the samples. We can exclude some."

"Huh? It can be ruled out, but won't people be missed because of this? Mr. Yang Rui, you must know that we need some work to pass the PCR technology from the judge. If we make a mistake the first time, it will be very difficult to pass it again." It's difficult."

Yang Rui smiled and said, "It won't be missed. We only exclude women under certain circumstances. In fact, we only exclude women."

"Isn't it a woman who committed the crime?"

"Well, because the murderer's DNA is male." Yang Rui briefly explained the relationship between the X and Y chromosomes to Sherwood, and said: "If the genome project is completed, we can rule out more things. At present, the safest The best approach is to exclude women, and then start testing from young and middle-aged residents. At the same time, samples of women are taken to avoid accidents."

If the Human Genome Project is completed, or further, if more human genetic information can be obtained, the murderer’s DNA can be obtained, and a fairly detailed facial makeup, such as race, skin color, age, etc., can be easily obtained. Nose or rosacea, curly hair or straight hair, it's all there.

However, the Human Genome Project in 1986 was still in its infancy, and there were hardly any useful things, at least nothing that could be used immediately, Yang Rui said.

Sherwood was not going to ask for more scientific details, and Yang Rui told him the information, which already satisfied Sherwood, and said with a smile: "This is the best, I have already talked with the judge, and they will learn about this technology independently. , but I believe there is no problem..."

Although the concept of DNA has appeared as early as the 1950s, DNA as evidence is new all over the world, and the judicial system of each country needs a process of acceptance.

Yang Rui had an idea earlier. Hearing what Sherwood said, he couldn't help saying, "I have a proposal."

"kindness."

"You may use some relatively certain small cases as examples of the application of PCR. If it is passed once, will the problem of judicial determination be resolved?" Yang Rui talked with Sherwood with difficulty using uncommon English words.

He does not need the Marle case to be the first case of the PCR machine. Such a first case has limited news support. What he needs more is a solid case.

Perhaps it would be more meaningful to Yang Rui if he could perfectly prove the value of the PCR machine, and then publicize that PCR solved complicated cases.

Sherwood was a little surprised, and said, "You want to use the PCR machine to solve a few cases first?"

"Yes. If you can't arrange funds, we can provide trial services."

"No. If it's just a small case, the cost is not a problem." Sherwood obviously didn't care about the expenditure of tens of thousands of crowns, but said in a deep voice: "You are very confident in the PCR machine."

"Of course." Yang Rui laughed. DNA testing is known as the king of physical evidence. For a long time, the judicial systems of various countries have worshiped DNA as a god.

Sherwood had no urge to worship God for the time being, and agreed to Yang Rui's suggestion. From his point of view, it was good to choose a safer way.