"Billy, are you home?" Local police officers in Muller tapped the door of the White House at the foot of the hill.

Around the white house stood police officers from Stockholm. Some of them were armed with rifles, some with holsters on their waists, and some were hiding behind big trees with bare hands.

Several reporters hid in the white tent to shoot, and the red light on the camera trembled like the operator's mood.

In the rear, the on-site commander used mobile phones to report to the Bureau.

For the convenience of Yang Rui and reporters from non Swedish countries, the police officers used English according to the agreement and said in a loud voice: "we are knocking on the door of the suspect's house. This is a three story house with front and back yards. It's mainly made of wood. There's no sign of reinforcement... "

His voice came out of the loudspeaker on the desktop, very clear.

Everyone became nervous, especially Sherwood, the director of the Bureau, said: "you must pay attention to safety, but you must not shoot unless the other party uses a lethal weapon, understand? No shooting. "

"I understand." The field commander answered quickly.

It's all agreed. It's just the voice on the phone that makes Sherwood calm.

What he was most afraid of was not choosing the wrong family, but because he was afraid that he would choose the wrong family. As a result, the other party resisted and was killed by the police.

If this kind of thing happens in the United States, it will cause a great disturbance. If it happens in Sweden, it will be endless censorship.

In fact, Yang Rui didn't take this into consideration. Only when he heard Sherwood's words, he suddenly thought of the problem.

For a moment, Yang Rui felt afraid.

He is not afraid that PCR will make mistakes, but there was a problem in shooting suspects without trial. In front of so many reporters, if any suspects were killed, it would be even more troublesome. PCR will almost certainly be denounced - even if PCR selects the right prisoners, this is a new technology after all.

"We saw the curtains on the second floor of the room pulled open. The suspect may have found us." In the telephone loudspeaker on the desk, the voice came out again, a little nervous.

Sherwood lowered his head and pressed the call button, saying, "don't use force easily, try not to use force."

"I understand. Don't act rashly." The voice of the police on the other side also became a little tight.

Silent half a minute, so that the sense of crisis gradually accumulated.

"The door is open."

As soon as the sound sounded, Ackerman saw Billy with a red neck.

"Don't move, don't move!"

Several policemen swished into the door. They were holding guns and asked, "how many people are there in your family? Who is at home today?"

"No one, just me. What are you looking for?" Billy yelled in Swedish, like a Swede of his age.

Ackerman was relieved, and so was the rear.

No matter whether the suspect is found correctly or not, as long as the other party is willing to admit the authority of the police and does not resist on the spot, that is the best situation.

Sherwood is a long breath, ordered: "everything should be in accordance with the norms."

"I understand." The on-site commander answered the director's words. With a flick of his finger, he pulled a large number of police officers over and controlled Billy and put on handcuffs.

Billy frowned, struggled a little, or gave up, and said, "why do you come to my house? Why search my room? "

"This is our search warrant." The on-site commander showed Billy and ordered, "take him back to the police car and take care of him."

During their trip, they specially brought a prison car with complete equipment.

Billy couldn't help struggling and yelled, "I'm a school teacher. Everyone knows that you have no reason to search my room..."

His voice is very loud, but the nearest neighbors all live 150 meters away. It's very difficult to hear, let alone help.

The commander picked up the receiver again and said, "we're starting the search."

With the search order issued, the Stockholm police department's conference room, into a difficult embarrassment.

Waiting is always disturbing.

It is even more disturbing not to see the constant attention of the scene.

Silver Gasol gently broke the silence and asked, "what do you want to find?""More evidence." Director Sherwood thought, but did not say.

They have nothing but DNA.

Unless Billy pleads guilty, they're bound to suffer in court on DNA evidence alone.

There is also a senior police officer next to remind: "now is not the time to ask questions, please do not ask questions, only allowed to observe, not allowed to speak and speak."

Ingersoll had no choice but to apologize silently. In fact, he guessed the answer. He wanted to hear it from director Sherwood.

At this time, Ingersoll looked at Yang Rui again. He saw that Yang Rui's eyes were shining. He didn't seem to be worried. He could not help but secretly envy himself: young people are always brave and forward. They don't care about so many people and things. They are really happy.

The conference room fell silent again.

The scene commander did not speak, director Sherwood did not take the initiative to ask, reporters can not speak at will. We can only do our best to imagine what happened in Marle.

It took about a quarter of an hour for the on-site commander to call again: "director Sherwood, we have a major discovery in Billy's basement."

"I'm Sherwood." The director picked up the microphone for the first time and ended hands-free.

We can only stand up and pretend that it doesn't matter.

A minute later, the director put down the microphone, turned on the hands-free again, and said, "ladies and gentlemen, we have found the remains of the victim. It's hidden in a storage room in the basement of the local resident Billy's house. "

In the conference room, people gave out a soft voice of praise.

It's the most basic way of thinking that a murderer will hold the remains of a victim.

Instead, silver Soldo thought a step and asked, "which victim's remains have been found?"

"The remains of the three victims have been found, including the ring of the first victim, the necklace worn by the second victim on that day, and the watch worn by the third victim on that day." Sherwood answered Ingersoll's question this time.

Silver Gasol took a cold breath and blurted out: "serial killer."

"Yes, gentlemen, we have cracked a serial murder." There was a smile on Sherwood's face. Before that, both the police and the media evaded the word "serial killer". On the one hand, they were not sure whether one of the three cases was the so-called "serial killer". On the other hand, the deterrent power of serial killer was too great. On several aspects, they only threatened the "simple and honest" Swedish residents.

However, now that the case has been solved, there is no problem in talking about serial killers or serial homicides. We can not only talk about it, but also talk about it in a big way.

The reporters also cooperated with the inquiry.

This kind of time, of course, is Daqing Gong time.

Director Sherwood's face lit up.

No matter what technology they used, with the help of the search warrant, they found the key material evidence. With this thing, and with some supplementary investigative means, the case of Muller is over.

To solve such a case perfectly during his term of office, director Sherwood only felt that he was full of gold.

Silver Gasol's eyes were always wandering on Yang Rui. When the voice of inquiry was sparse, he stood up and asked, "Mr. Yang Rui, the PCR instrument has shown considerable power. Next, what's your plan?"

"Oh, I'm glad Stockholm police can choose PCR instrument. They have made full use of PCR instrument." Yang ruidun looked at Sherwood and said, "if Sherwood is willing, I hope the Stockholm police department can further develop the value of PCR."

The correct saying may be "DNA identification". However, Yang Rui has used PCR instead of DNA identification on almost all occasions. So far, no one has expressed any objection.

Reporters on the scene also made records one after another.

However, Ingersoll continued to ask, "what kind of Stockholm police department do you envisage to further develop the value of PCR?"

Sherwood also looked at Yang Rui curiously.

With a smile, Yang Rui said, "it's a professional PCR laboratory. You may not know that PCR can detect samples with a long history, such as blood stains 10 or 20 years ago, as long as they are not contaminated, there is a possibility of detection results. If we can compare it with a certain number of samples, I think we should be able to crack a certain number of cases. "

The reporters on the scene were more or less familiar with PCR and DNA identification technology. Listening to Yang Rui's remarks, they were surprised that they didn't know what it meant.Dick looked at Yang Rui with astonishment. In his opinion, this is more than a machine deciding criminals. This is to screen whether everyone is guilty or not.

It's just like the universal fingerprint comparison in different countries when fingerprint identification was first invented.

In many countries, it's a shameless invasion of privacy.

Dick stood up. Just when he wanted to pay for Yang Rui's fallacy, he began to hesitate.

Yang Rui just hit him so hard that Dick was afraid that others would treat him differently.

That's what Swedish culture is like. What they do well is their common view. It's a bit similar to China's view of the mean. They attack Yang Rui twice a day, and it's such a big attack. Obviously, they go to extremes.

Dick looked around and sat down in silence. Now the environment is in the state of celebration, and he doesn't want to be an annoying sparrow.

Reporter Dick didn't know that he had lost his best chance.

……