Chapter 1310

And in the position by the door, are a few reporters holding cameras, looking for angle.

Yang Rui was a bit surprised, but not surprised.

Although I don't know whether the reporters have attracted the high-level of the police station or the high-level of the police station, as long as there is a taste of fresh meat, it's not surprising whether the wolf is in a mess or the police are in a mess.

Yang Rui's yellow skin, without introduction, was recognized by the reporters. Although there were not many of them, they still blocked the way and asked, "Mr. Yang Rui, I heard that you are going to challenge the case of Muller with high technology. Is that so?"

If there are not many reporters, there will be no noisy situation, but fewer reporters mean that the questions are more difficult to answer.

Yang Rui looks up at Sherwood. Director Sherwood nods slightly. He doesn't know whether he nods or agrees with Yang Rui to answer the question.

Yang Rui didn't think so much about it. First, he said, "it can't be said to be a challenge. We just want to provide the police with more tools to handle cases, so that they can have more choices when investigating. PCR instrument is a tool. It is still Stockholm police who challenge maller case. We are just logistics personnel. "

The answer can be called humility. The policemen who understand English nod their heads in silence, and their attitude has become better.

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

"Mr. Yang Rui, it is said that the Marler case was completed by two killers. What do you think of that?" There is a reporter with the appearance of a fight layout, with urban anecdotes to ask questions.

Yang Rui said calmly: "we are just tools. Our PCR instrument will give as much information as possible. As for how to interpret the answers from these information, that is the work of the police."

Yang Rui's idea today is very clear. He is here to promote PCR instrument, not to fight with the police.

In fact, his idea is just the opposite. He hopes that more police and police stations will use PCR, that is, DNA identification technology. On the other hand, Yang Rui doesn't want PCR to be regarded as a pure criminal investigation technology by the society. That would be too insulting to the value of PCR, just like saying that X-ray is a pure medical equipment.

"Mr. Yang Rui, how much confidence do you have in today's test results?" Reporters found that Yang Rui can not dig out the material here, just reluctantly back to the subject.

"I have 100% confidence," Yang said

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

Yang Rui shrugged his shoulders and said: "comparing with DNA, the accuracy is very high. Through PCR amplification, the probability of test failure is very small."

After stopping, Yang Rui felt that what he said was not clear enough. He added: "it may be easier to understand if I describe it in this way. If the police use DNA to judge the murderer, there will not be two people with the same DNA among the six billion people in the world. Not only that, judging from the probability, the DNA of all human beings born in the recent thousands of years of human history will not be exactly the same. Therefore, I have 100% confidence to make a judgment based on such accuracy. "

"Will there be no human error?" A professional reporter hit the nail on the head and said, "how can we avoid human errors?"

With a smile, Yang Rui looked at the reporter and said, "I am a scientist. In the field of science, I try my best to achieve my goal. If you want, maybe I can ask God to decide."

The crowd gave a gentle smile.

The reporter just did not hear, and said: "you mean that there will be human errors?"

If it is in the normal form of Q & A, Yang Rui should probably answer "of course" at this time, and then explain in detail.

However, living in a foreign country, Yang Rui became more sensitive. He thought more about it. What would happen if he was reported by reporters out of context?

The first thing I encountered was the challenge from the court.

Unlike later generations, in 1986, no country recognized DNA evidence. In other words, the conviction of DNA itself needs to go through disputes.

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

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

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

He seems to ask the people below. His eyes are on Sherwood, the director.

The police chief is also a very political figure. He noticed Yang Rui's evasive reply and immediately thought of the corresponding results. In a flash, he said, "let's see the test results now. If the test results meet our expectations, Stockholm police may adopt this technology to solve the case of Muller. Please give way."People in the office made way for Yang Rui and Sherwood to enter the room where the PCR was placed.

"Introduce it." Yang Rui nods to Huang Mao and Tu Xian.

"How to introduce it?" Both Huang Mao and Tu Xian have stage fright.

"Just tell me what you've done in the past two days." Yang Rui turns around and smiles at the camera.

Tu Xian and Huang Mao gave way for a moment. Tu Xian stood up and said in English: "yesterday, we collected the DNA of the police officers. In addition, we got a bunch of hair with skin bags. After that, our test is to determine who is the owner of the hair."

The police who took part in the test were smiling and others raised their hands.

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

But that's all.

"Now, please give the answers to director Sherwood, and we'll find out our answers later." Tu Xian said that according to Yang Rui's arrangement in advance, a photo of a bunch of hair and photos of several police officers participating in the test were pasted on the whiteboard in front of him, just like the crime drama in Europe and America.

Reporters soon found that this way is very intuitive, have taken photos.

The officer in charge also handed the envelope to Sherwood.

Sherwood did not open it immediately, but said, "Mr. Yang Rui, please release your comparison chart."

"Tu Xian." Yang Rui called.

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

As he spoke, he opened two volumes of drawings and hung them on a white board on the other side.

In particular, the two printed drawings are full-color, colorful blocks, concave and convex in a line, forming a strange graph.

"This is drawing A." Tu Xian pointed out for a moment, then unfolded another one and said, "this is drawing B. As you can see, diagram a and Diagram B are consistent... "

"What about the other pictures? Let's look at the inconsistencies. " Some of the reporters cried out.

Tu Xian took a look at Yang Rui, benefited from it, and unfolded all the other drawings.

Without his special explanation, we all realize that other drawings are different.

"It's quite exquisite." A female reporter praised her.

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

"Tu Xian, read the owner of your hair." Yang Rui reminds us.

Tu Xian, with a "Oh" sound, lowered his head to check, said: "we confirm that the owner of the hair is Ackerman."

What he said was plain, less passionate.

Fortunately, today's journalists are graphic journalists, and they don't care about his passion. They turn their eyes to Sherwood.

Sherwood smiles, opens the envelope in front of him, takes a look, and turns to the crowd.

Ackerman's name, printed in fancy script, was shown to the public.

In the office area, there were bursts of surprised voices.

"Officer Ackerman, please step forward." Director Sherwood called again.

I saw a tall Swede like Swede, smile and raised his hand.

"Officer Ackerman, did you leave your hair yesterday?"

"It's mine." Ackerman laughed twice.

The reporters gave a gentle applause, but the Swedish police officers on the scene were rather dull.

Yang Rui turned his lips, thinking that if he played in the United States, it would have been a riot.

"So, chief Sherwood, you're going to use new technology in the maller case, aren't you?" A reporter put forward the key points at this time.

Sherwood nodded slightly and said, "not only in the case of Marley, but also in a number of cases, we will use PCR technology."

Yang Rui was stunned, which was beyond his expectation.

However, from Yang Rui's point of view, this is just a good thing, he is not afraid of the test of technology.

In a flash, Yang Rui got excited again. It's rare for him to see his own technology used in the detection of serial homicide in his lifetime.

……