Rebirth of the God-level Xueba

the next day.

When Yang Rui came to the Stockholm Police Station again, twice as many police officers gathered in the office area on the second floor.

Some policemen with high-ranking epaulettes also appeared inside. They stood with Sherwood and chatted relaxedly.

And at the position near the door, there are several reporters holding cameras, looking for angles.

Yang Rui was a little surprised by this, but it was not surprising.

Although I don't know whether it was the reporters who attracted the high-level police officers or the high-level police officers who attracted the reporters, but as long as there is a smell of fresh meat, it is not surprising whether it is a mess or a mess.

Yang Rui's yellow skin was recognized by the reporters without an introduction. There were not many of them, but they still blocked the way and asked, "Mr. Yang Rui, I heard that you are going to use high technology to challenge the Marle case. ?”

Fewer reporters means less chatter, but fewer reporters means more difficult questions to answer.

Yang Rui looked up at Sherwood, Director Sherwood nodded slightly, and he didn't know whether he nodded in greeting or agreed to Yang Rui's answer to the question.

Yang Rui didn't think too much about it anymore, and said first: "It can't be called a challenge, we just want to provide the police with more tools for handling cases, so that they can have more choices when investigating. The PCR instrument is a tool. It is still the Stockholm police who are challenging the Marle case, we are just support staff."

This answer can be called humility. The policemen who can understand English all nodded silently, and their attitudes changed for the better.

If Yang Rui said that he would take over the work of the police, they would not be happy.

"Mr. Yang Rui, some people say that the Marle case was completed by two murderers. What do you think about this?" A reporter asked a question with an urban legend, looking like he was fighting for the page.

Yang Rui said indifferently: "We are just a tool. Our PCR machine will give as much information as possible. As for how to interpret the answer from this information, that is the job of the police."

Yang Rui's thinking today is very clear. He is here to promote PCR machines, not to fight the police.

In fact, his idea is exactly the opposite. He hopes that more police and police stations will use PCR, that is, use DNA identification technology. On the other hand, Yang Rui does not want PCR to be regarded as a pure criminal investigation technology by society.

That would be an insult to the value of PCR, as nonsensical as saying that X-rays are purely medical equipment.

"Mr. Yang Rui, how much confidence do you have in today's test results?" The reporters reluctantly returned to the topic when they found that they could not dig out any serious information from Yang Rui.

Yang Rui said: "I have 100% confidence."

"Why?" The reporter finally grasped a topic, and hurriedly asked.

Yang Rui shrugged and said, "Using DNA as a comparison, the accuracy is very high, and the probability of test failure is very small through PCR amplification."

Stopping, Yang Rui felt that what he said was not clear, and said: "It may be easier to understand if I describe it this way. If the police use DNA to judge the murderer, among the 6 billion people in the world, no two people will have the same DNA. Not only that, judging from the probability, the DNA of all human beings born in the last few thousand years of human history will not be exactly the same, so, based on such accuracy, I have 100% confidence confidence."

"Will there be no human error?" A professional reporter said sharply: "How can human error be avoided?"

Yang Rui smiled, looked at the reporter, and said, "I'm a scientist. Within the scope of science, I try to achieve my goal as much as possible. Your request may be judged by God."

Everyone smiled slightly.

The reporter pretended not to hear it, and said, "What do you mean, there will still be human errors?"

If it was a normal question and answer format, Yang Rui should probably answer "Of course" at this time, and then explain in detail.

However, being in a foreign country, Yang Rui became more sensitive. He thought a little more, what would happen if the reporter reported PCR out of context?

The first thing to encounter is the questioning of the court.

Unlike later generations, in 1986, no country has yet recognized DNA evidence. In other words, convicting a person with DNA requires a dispute.

Yang Rui can't leave such a handle in public.

At least, he couldn't leave such a handle as the inventor of PCR and as a well-known genetics expert.

Thinking of this, Yang Rui waved his hand without hesitation and said, "What we are discussing today is not the issue of human error, but to see the test results. How about we finish this work first?"

He seemed to be asking the people below, and his eyes were on Director Sherwood.

The police chief is also a very political figure. He noticed Yang Rui's evasive answer, immediately thought of the corresponding result, and said in a flash: "Let's take a look at the test results now. If the test results meet our expectations, the Stockholm police may take action." This technology is used in the detection of the Marle case, everyone, please step aside."

The people in the office made way for Yang Rui and Sherwood to enter the room where the PCR was placed.

"Let me introduce you." Yang Rui nodded to Huang Mao and Tu Xian.

"How to introduce?" Both Huang Mao and Tu Xian were a little stage frightened.

"Just tell me what you have done these two days." Yang Rui turned around and smiled at the camera.

Tu Xian and Huang Mao backed off for a moment, then Tu Xian stood up and said in English: "Yesterday, we collected the DNA of the police officers, and also got a bundle of hair with a skin capsule. Afterwards, our test is to judge the hair Who is the owner of?"

The policemen who participated in the test smiled, and some raised their hands.

In front of the media, the Swedes have also become more lively.

But that's all.

"Now, the police officers, please give the answers to Chief Sherwood, and we will reveal our answers later." After Tu Xian finished speaking, according to what Yang Rui arranged in advance, there was a photo of a bunch of hair and photos of several police officers who participated in the test , posted on the whiteboard in front of him, just like the crime dramas of later generations in Europe and America.

The reporters quickly found that this method was extremely intuitive and took pictures one after another.

The police leading the team also handed over the envelope with their names written on it to Sherwood.

Sherwood didn't take it apart immediately, and said first: "Mr. Yang Rui, please release your comparison picture."

"Tu Xian." Yang Rui called out.

Tu Xian coughed, took out two rolls of paper from under the PCR machine, and said, "The principle of the PCR machine is actually to expand DNA. Now we have made an image of DNA. As you can see, there are two images of DNA that are unanimously..."

As he spoke, he opened two rolls of drawings and hung them on another whiteboard next to him.

The two specially printed drawings are full-color, and the colorful blocks are concave and convex on a line, forming a peculiar figure.

"This is blueprint A." Tu Xian pointed at it, unfolded another, and said, "This is blueprint B. As you can see, blueprint A and blueprint B are the same..."

"What about the other pictures? Let's see the inconsistencies." Someone among the reporters yelled out.

Tu Xian glanced at Yang Rui, benefited from it, and unfolded all the other blueprints.

Without his specific instructions, everyone realizes that other drawings are not the same.

"It's quite beautifully done." A female reporter praised it.

Tu Xian said sullenly, "This is automatically generated by the machine."

"Tu Xian, read the owner of the hair you confirmed." Yang Rui reminded.

Tu Xian said "Oh", lowered his head to check, and said, "We confirm that the owner of the hair is Ackerman."

What he said was unremarkable and lacked some enthusiasm.

Fortunately, all the journalists who came here today didn't care about his passion, and turned their attention to Sherwood again.

Sherwood smiled slightly, opened the envelope in front of him, glanced at it, and then turned to everyone.

Ackerman's name was printed in cursive and displayed to everyone.

There were bursts of surprised sounds in the office area.

"Officer Ackerman, please stand up." Director Sherwood called again.

I saw a tall Swede who looked like a Swede and raised his hand with a silly smile.

"Officer Ackerman, what you left yesterday was your hair?"

"It's mine." Ackerman laughed twice.

The reporters applauded lightly, but the Swedish police officers present looked quite dull.

Yang Rui curled his lips, thinking, if this was played in the United States, the sky would have been turned upside down.

"Director Sherwood, so you're going to use new technology in the Marle case, right?" A reporter raised the point at this time.

Sherwood nodded slightly, and said: "Not only in the Marle case, we will also use PCR technology in many cases."

Yang Rui was taken aback for a moment, this was a bit beyond his expectation.

However, from Yang Rui's point of view, this is only a good thing, he is not afraid of technology being tested.

In a blink of an eye, Yang Rui became excited again. It is rare and handsome to see the technology he developed used in the detection of serial murders in his lifetime.

...