"We can do a test." Yang Rui stood among a group of Stockholm policemen and said in English: "You can provide me with a hair, and then choose a few people for us to test. At this time tomorrow, I can tell you who the hair belongs to."

Xiao Deng stood beside Yang Rui as the translator of the embassy, ​​and then translated his English into Swedish to avoid anyone’s mistakes.

On the other hand, the pride of Swedes is also obvious, and they always prefer to listen to Swedish rather than English, German or French, even if they can understand it.

Yang Rui asked Huang Mao to turn on the PCR device and then said: "We use it to detect DNA. This machine is called a PCR device. As long as there is a DNA strand, it does not even need a DNA strand, and a part of the DNA strand, we can expand it endlessly."

Seeing that everyone was a little confused, Yang Rui immediately changed the method and said: "Simply put, the minimum requirement of a PCR device is a cell. Therefore, its benefits are very obvious. Any minor mistakes made by a criminal at the crime scene may become a clue for us."

"Did you put these hairs and cells under a microscope with a high magnitude?" A policeman asked loudly, knowing the term "multiple", which means that he is aware of some experiments.

Yang Rui said gently: "The principle of PCR is slightly different from that of microscopes, but what we finally got is indeed an image, and we can also understand it in this way."

His explanation was obviously a mistake. Huang Mao said in Chinese as soon as he was anxious: "Director Yang, it cannot be said that it is similar to a microscope."

"Where did I say it's similar to a microscope? I mean it's slightly different from a microscope. What we end up with is the image, right?" Yang Rui seriously corrected Huang Mao.

Huang Mao was stunned and said, "The PCR instrument and microscope are not only slightly different."

"From the perspective of an outsider, it is enough to describe it in a slight difference." Yang Rui stopped speaking Chinese and continued to say in English: "Sorry, my assistant wants to tell you more detailed and clear principles. I rejected it. I think we can master the method of collecting evidence. It is best for a dedicated person to use the PCR device to avoid losing in court."

After Yang Rui said this, the director agreed and said, "We must abide by the rules and do everything in the book. In addition, the collection of evidence and evidence collection must also be carried out according to the manual provided by Mr. Yang Rui."

Huarui Laboratory has long compiled PCR usage codes, especially sampling guidelines, and tried to promote them in police stations in Hong Kong and other regions. Yang Rui knew that it was fine if he didn't need to translate it, just take the English version.

Some of the police nodded, while others shouted in discontently: "Even if you use this PCR, why do you have to hire this company?"

The other party was in Swedish. When Xiao Deng translated it to Yang Rui, he had already continued to say: "Is this unique technology? The unique technology from China should guide us to solve the case? I dare not submit such evidence to the court, and the judge will not pass it as evidence."

"Pickel." Director Sherwood stood up, looked at the talking police officer, and said, "You'd better put away your tricks and do your own thing well."

His words were stern, his eyes turned, and he said to everyone: "Marl's case has now received special attention from all parties. What we need to do now is to determine the suspect and then decide how to prosecute. If necessary, I believe Mr. Yang Rui can explain clearly to the judge what a PCR instrument is. If not, it is also the decision of a stupid judge, rather than to decide whether to believe in a new technology - we must use all technology, do we understand? It is not like a German, who will criticize any new technology first."

His discrimination against the Germans attracted a burst of laughter.

"Since we know we want to explain to the court, why don't we find a Swedish professor to operate these machines," Picker said.

Yang Rui listened to the synchronous translation and quickly said: "Because we can provide a better PCR device."

"A better PCR device? Is it better than Swedish ones?" Picker asked with a smile.

Yang Rui did not answer this question directly, but said tactfully: "I invented the PCR instrument, and the patent period has not ended, so now, I sell PCR in the world. What I am bringing out is the second-generation PCR instrument that has not yet been put on the market. It is smaller, more portable, faster, and all are the functions you need."

Needless to say, everyone understood what Yang Rui meant, and PCR instruments all over the world came out of me, this one was a non-sale product.

In fact, what Yang Rui has now is not a real second-generation PCR, but if he wants to be called a second-generation, there is no way for others to do so.

Sherwood stood up without waiting for Picker to speak, and said, "The discussion ends here. Let's do an experiment to verify the functions of the PCR device. At the same time, we need to prepare for the clues that will be exposed next..."

Sherwood directly arranged the work, Yang Rui signaled Huang Mao twice, and then started to operate.

It is actually very simple to use PCR instruments. Remove the preface steps that are a bit verbose, and can be basically summarized as: turn on the machine, stuff the raw materials, and get the conclusion.

If you are proficient in these three steps, the number of experiments that can be performed in a day is quite considerable.

In later scientific research laboratories, some graduate students spent three years studying, and for two years they were running PCR. They were moving fast like Bolt in the laboratory world. They only had a few seconds to have a relationship with a group of DNA.

After being poached by Yang Rui from Peking University to Huarui Laboratory, Huang Mao was also the leader in the laboratory. After several years of cultivation, his calf temperament has been destroyed by massive resources and has reached its peak state. Without Yang Rui's help, the machine was started to operate.

Tu Xian took the cotton swab and began to take the epithelial tissue of the police uncle and the police aunt. He pounded the small cotton swab at the gums and applied the cotton swab to the naturally falling off the cell tissue of the human body.

With all kinds of time-wasting operations, the PCR instrument was completely separated in just over ten minutes, which is similar to the difficulty of operating a microwave oven.

Yang Rui looked at it and said, "At this time tomorrow, we will see the results. We will have someone stay here for consultation."

Yang Rui himself did not stay directly, he felt that this might be better for communication.

A group of policemen looked at Dududu, as if they were boiling water. They always felt that the high-tech sense was not enough. Someone asked suspiciously: "Is this OK?"

What he meant was probably the science fiction program in the movie, and it was not performed like this.

Yang Rui shrugged and said, "That's all. We have added seals and locks to the machine. We will reveal the secret tomorrow. Believe me, this will be the most useful machine you have ever used."

“More useful than a coffee machine?”
Chapter completed!