Chapter 1311

Muller is a small town in northern Europe.

It has a gentle and clean river, but it is frozen for six months of the year, and the rest of the year is often covered with broken ice. It has a beautiful fitness trail, wide and straight, covered with shock absorbing boards, but three people died on it.

Mahler's most famous is lithography, which can be traced back to the Viking era, but no one wants to see these lithographs. They may be works of art or antiques, but it was not until someone's blood soaked the land that cameras came to this cold city.

Yang Rui jumped out of the car and crunched the snow under his feet.

Yang Rui can see the snow mountain and the house at the foot of the mountain.

"It's a good place to spread." Yang Rui praised: "there is a distance of 100 meters between a house and a house."

"Swedes like to live far away. We don't like to hear our neighbors, whether it's talking or shooting. " Officer Ackerman slams the door and follows Yang Rui.

Yang Rui's PCR Technology identified Ackerman's hair, which made him an instant supporter of PCR technology. Not only that, he also found his own materials to read - Swedes are not social people, their favorite thing is to squat in the corner of the world and study their own gadgets.

"There are 874 permanent residents of Muller." "Where do you want to start?" Ackerman asked

"First of all, we have to delineate the residents of the small town. If they are not 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 been passed before, but it's just repeated.

Ackerman just needs this repetition.

PCR It's a new thing for everyone. Everyone has to confirm it repeatedly, so as not to make mistakes in the steps and affect the results. In fact, Yang Rui emphasized this point.

The residents of the town were informed in advance and soon gathered together.

This may be unthinkable in the United States. We can't expect all the Americans in a town to assemble on time. But the Swedes can, no matter one month or one day's notice in advance, as long as the time is determined and confirmed, they will get everyone.

The descendants of these Vikings were silent, but as if they were ready to get on board, they showed up at the assembly site on time.

"Isn't it unexpected?" Huang Mao walked up to Yang Rui and said, "look at these Swedes. They all look ordinary. Who can guess that there can be a murderer in them."

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

"Just like you." Huang Mao looked up at Yang Rui enviously and said, "how can you be as tall as a Nordic. No, it's taller than a lot of Nordic people. "

"From heaven." Yang Rui's sincere way.

Huang Mao laughed.

"After a while, our company will stir it in your mouth with cotton swabs, which will not damage your body. This is the latest technology, which is used to do necessary tests..." a senior police officer, holding a microphone, introduced the situation to the residents. His voice was so bland that it was like saying an ordinary little thing.

The residents also seem to be listening to an ordinary little thing.

Instead, Yang Rui stood at the bottom, picked up his own red flag camera, and when the first resident started sampling, he pressed the shutter desperately.

In an era when there were less than 30 photos in a roll, his shutter was soon unable to move.

Yang Rui smiles to himself, opens the back cover of the camera, carefully puts away the film, and then says to Jing Yulan: "in the future, these are all normal historical materials."

"Historical materials?" Jing Yulan is wearing a LV bag, a lady's hat with wide eaves, and a pair of sunglasses on the bridge of her nose to prevent snow blindness. From a distance, she seems to be a beautiful girl in the forefront of fashion.

Yang Rui put his hand on her waist, gently hugged her and then released her. He said with a smile, "it's the first time in human history that PCR is used to handle a case. Of course, it's historical data. After that, it must be in the museum."

"You think it's important, what if other people don't?" Jing Yulan is laughing and joking.

Yang Rui thought for a moment and said, "I'll build a museum myself." Yang Rui's answer is very clear, which makes Jing Yulan a little stunned.

Click, click.

In a flash, Yang Rui pressed out another roll of photos.

During the whole 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 few mistakes, but once there are sampling errors, they are all over.

Yang Rui looks very relaxed. In fact, he is very nervous.

If the killer is not among the residents, if the sampling is wrong, if the technicians have problems with the operation... What he wants is a big news, not a big scandal.

However, doing things is like this. You have to accept the acceptable risk. If you can't accept it, end it ahead of time. If you can accept it, you can't regret it.

Marler's journey was soon over.

When Yang Rui returned to Stockholm and just started sorting out the samples, he was called into the office by director Sherwood and asked: "Mr. Yang Rui, how long can we receive the results? I mean, how soon can we be sure of the killer. "

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

"That is to say, it will take three days to finish all the samples? Only three hundred a day? " Director Sherwood calculated and asked, "can we find more?"

"In fact, we can only do less than 200 samples a day, and we don't have to finish all the samples. We can exclude some. "

"Why? It can be ruled out, but won't people be left out? Mr. Yang Rui, you should know that we need some work to pass PCR technology in the judge's office. If we make a mistake at the first time, it will be very difficult to pass it again. "

Yang Rui said with a smile, "we won't miss it. We only exclude women under certain circumstances. In fact, we only exclude women."

"Not a woman?"

"Well, because the killer's DNA is male." Yang Rui briefly told Sherwood about the relationship between X and Y chromosomes, adding: "if the genome project is completed, we can exclude more things. At present, the safest way is to exclude women, and then start testing from young and middle-aged residents. At the same time, a sample of women was taken to avoid accidents. "

If the human genome project is completed, or if we can go further and learn more about human genes, we can get the killer's DNA, and then we can draw quite detailed facial makeup, such as race, skin color, age and so on. It's very easy to get, whether it's an aquiline nose or a rosacea nose, whether it's curly hair or straight hair.

However, the 86 year human genome project is still in its infancy, and we can hardly get anything useful. At least there is nothing that can be used immediately at this time. Yang Rui is just talking about it.

Sherwood is not going to ask for more scientific details. Yang Rui told him that he was quite satisfied with the information and said with a smile: "this is the best. I have talked with the judges and they will understand the technology independently, but I believe there is no problem..."

Although the concept of DNA appeared as early as the 1950s, DNA as evidence, It's new all over the world. Every country's judicial system needs a process of acceptance.

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

"Yes."

"You may be able to use some relatively certain small cases as examples of PCR applications. If it is passed once, can it solve the problem of judicial determination? " Yang Rui talks with Sherwood with rare English words.

He doesn't need the case of Muller to be the first case of PCR instrument. Such a first case has limited support for news. What he needs more is a stable case.

If we can perfectly prove the value of PCR instrument, and then publicize that PCR has solved complex cases, it may be more meaningful for Yang Rui.

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

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

"No. If it's just a small case, the cost is not a problem. " Sherwood obviously didn't care about spending tens of thousands of krona, just pondered: "you are very confident in the PCR machine."

"Of course." Yang Rui laughs. DNA identification is known as the king of material evidence. For quite a long time, the judicial systems of various countries have worshipped DNA as a God.

Sherwood does not have the impulse to worship God for the moment, but agrees with Yang Rui's suggestion. From his point of view, it is good to choose a more stable way.