Chapter 643: Microwave Pulse

The highest level of plastic surgery is to look the same as if you haven't had plastic surgery, but you have become a different person, and even crossed genders, to put it mildly, it is "head replacement surgery"!

As for the emotional changes such as demeanor, movements, and eyes after plastic surgery, after going through rigorous training, it is like another person being reborn.

This 16-year-old girl looks exactly the same from the appearance and ID card, there is no difference, but her computer 3D modeling, the shape of the head is slightly different, even if a normal person sleeps flat when she is a child, the whole head will have a natural arc, but her head seems to be pieced together.

It's like taking one of the three watermelons to form a new melon, so no matter how perfect this new melon looks, it will have a weird feeling in front of a master-level analog portraitist and skull restorer like Xu Zheng.

The security check continued, Xu Zheng didn't have time to think about it, more than 20 people had passed through the four passages in just two minutes just now, and he continued to work while saying to Liu Linlin without looking back: "Hurry up and inform the Yang detachment, I personally think that the girl just now is the target you are looking for." ”

There is no reason for this, and the surgery done by a master cosmetic surgeon is the biggest reason.

The work continued, not to mention, there were nearly 1,000 people on this train, and there were more than a dozen people who had plastic surgery, including three men.

The high-intensity work lasted for eighteen minutes, and the passengers of the G1812 train finally passed the security check, and as for the people who were stranded on the platform and did not leave the station, the Yang detachment had already sent people to investigate.

Xu Zheng turned around and looked at the 3D modeling of the more than 20 passengers he had just missed, and after finishing these tasks, he breathed a sigh of relief, people are still inferior to computers, so he insisted on it for more than ten minutes, and he couldn't do it.

Fortunately, the rest of the work has nothing to do with him, and it stands to reason that he should withdraw from the operation at this time, but because the whole operation is one, without the formal arrest of the two target figures, all the people involved in the operation cannot get out of the red bridge.

Xu Zheng wanted to find a place to rest, but he was called to the conference hall by the Yang detachment.

As soon as he entered the conference hall, he was attracted by the huge display screen on the wall, which was divided into hundreds of small screens, and the conference hall was filled with sixty or seventy people, who were responsible for monitoring these people on the screen.

Without much thought, he guessed that these people should be stranded on the G1812 train of the Hongqiao high-speed railway, and at this time, all passengers who did not leave the station automatically became the object of police surveillance.

Xu Zheng's eyes were excellent, and after scanning twice, he found the screen that monitored the female student.

At this time, the female student was standing by the window of platform B1, wearing headphones and seeming to be watching anime, chewing something in her mouth, and several cameras around her took turns switching angles, but they didn't capture what was in her phone.

The Modu police also used high-altitude simulation drones for high-definition shooting, but unfortunately they could only shoot the face of the female student, and they couldn't shoot the content of her mobile phone.

As for the mini simulation camera, it is also monitored not far from the heads of the schoolgirls, but again, no useful information is obtained.

Seeing Xu Zheng coming in, the Yang detachment hurriedly beckoned, he was originally a serious person, but now he has not officially determined the target person, and the expression on his face is even less smiling, "Xiao Xu, come on, see what this woman is talking about?" ”

It turned out that he was translating lip language, Xu Zheng felt a little helpless, it was not easy to get a set of mini simulation cameras in his hands.

When he approached, the Yang detachment moved out of the way, and a computer desktop showed the picture of the female student bowing her head and chewing, looking as if she was talking to herself, but everyone present in the conference hall did not dare to be careless, worried that every move of the female student would have some meaning.

Xu Zheng observed for a while and shook his head, "Leaders, if I can't do anything, her lips don't move and squirm, but there is no rhythm, there is no way to translate, anyway, in the voice I know, I can't match her." ”

The Yang detachment had considered this before, and he was not disappointed when he heard this, and he asked Xu Zheng to look at other suspicious targets to help them conduct a second screening.

At this moment, the original hundreds of suspicious targets left forty or fifty people, and now there are still sixty or seventy people at the high-speed rail station, and more than 20 of them are heading towards Hongqiao Airport, and the Yang detachment asked Xu Zheng to help focus on observing these 20 people.

In fact, the information of these more than 20 people has already been investigated by the Modu police, including the air tickets they ordered, especially the fact that more than a dozen of them bought international flights, which is the focus of their investigation.

It's just that Xu Zheng observed the cameras that monitored them for a while, and he didn't find anything suspicious, because these people basically didn't deliberately avoid the cameras, and their words and deeds were the reactions of ordinary people, including lip translation for them, which were all parents' shortcomings and expectations for a foreign country.

This is simply ineffective surveillance, wasting the energy of the case-handling personnel.

Xu Zheng felt that the layout of the Yang detachment was not very good, but he couldn't think of a better way, and now the stupid method has the advantage of a stupid method, that is, whoever these people meet will be captured by the camera.

Even the toilets in Hongqiao have listening equipment, which can be described as 360-degree monitoring of the entire Hongqiao building.

The plane flying from Australia has already landed at Hongqiao Airport, and now the passengers are preparing to take their luggage to make a station, unlike the high-speed rail, only Hongqiao's own security check is detected at the exit of the airport, and the police are not involved, Xu Zheng is curious but did not ask, probably because there are too many foreigners, 3D scanning of them, and the leaders above did not approve it.

Soon, the passengers of the plane walked out of the exit of Hongqiao Airport, and the other target person they were looking for by the Yang detachment was also in this group of people, and it took more than ten hours for these passengers to fly from Australia to Hongqiao.

At this time, they all seemed very tired, and basically left Hongqiao Airport directly from the exit.

Of course, a few people took a break and rushed to the Hongqiao high-speed rail station, looking ready to take the high-speed rail to the next destination.

In response to this situation, the Yang detachment arranged multiple plans, in addition to thousands of cameras tracking and monitoring these people left at Hongqiao Airport and high-speed rail station without dead ends, he also sent a team of two plainclothes police on the ground to track.

But it's a pity that ten minutes have passed, and none of these people who stayed have met and communicated, as if they were really passers-by, and they didn't even meet.

"Liu Ju, can you ask if there is anything abnormal in the technical team?" Detachment Yang and Xu Peixin looked at each other, could it be that the news they got was fake?

The Liu Bureau hurriedly went over to inquire, but unfortunately none of the various anti-reconnaissance electronic instruments arranged by the public security bureau in front of them found anything suspicious.

Just when everyone was at a loss for what to do, Xu Zheng, who had been lying in front of the computer, suddenly said to the Yang team: "Yang team, this female student is the target you are looking for."

And the target you are looking for to get off the plane is in the E6 smoking room at this time, you see, it is the middle-aged man standing by the window. ”

Hearing this, several leaders hurriedly walked up to Xu Zheng's computer, and Xu Peixin asked urgently, "Xiao Xu, don't ink, tell me your reason." ”

Xu Zheng switched the surveillance video to the drone camera, and in the high-definition video, the female student was still chewing in her mouth, which is normal, and some people can chew betel nut for a day.

But compared to half an hour, her expression has changed a lot...

The Yang detachment was in charge of today's arrest operation, but now seeing that the best time for arrest is about to pass, and their mission is about to fail, and Xu Zheng is still here to explain the reason slowly, he is a little anxious, "Xiao Xu, you can talk about the details later, you can tell me, how they communicated." ”

You must know that now all the information exchanged by electronic instruments in the entire Hongqiao will be detected, and the female student has been watching the video, and her mobile phone has not transmitted information to the outside world at all.

"They use high-pitch microwave pulses to communicate with each other."

The person who spoke was Hong Chenchen, and when he saw that the police had not taken action for a long time, he must have not identified the suspect, so he walked over with Qu Ying, and just heard Xu Zheng's analysis just now.

This gave him a wake-up call, and he immediately thought of this microwave pulse emitting instrument that could communicate over short distances without any electronic components.

Microwave pulse, several leaders present are people of a certain status, well-informed, have heard of this short-distance communication method, but have not seen it, the main thing is that this communication method can only be within five hundred meters.

It can't be blocked by something particularly thick in the middle, otherwise the microwave pulse won't be able to penetrate.

The most unavoidable thing about this method is that it does not operate on electricity, which means that there are no electronic components, no batteries, no electronic emitters in this instrument...

Without these things, the counter-information reconnaissance equipment installed by the Hongqiao Sub-Bureau in this building would be useless.

Qu Ying saw that some people didn't believe it, took out her mobile phone, and found a set of photos, "You see, this is our unit's high-pitch microwave pulse transmitter, a very small thing, similar to a power bank."

There are two patches, one in the ear and one in the throat, and the user uses the throat vibration to reflect the audio, waiting until the second user receives the microwave pulse.

This power bank is the size of something to translate and transmit to his ears.

But what they transmit is not the sound of speech, but the audio, and the receiver gets the audio that he himself has to translate into speech.

In layman's terms, you can think of two people communicating with Morse code five hundred meters apart, but not electronic information exchange, but audio. ”

As soon as they said this, everyone also understood, Yang Detachment and Xu Peixin glanced at each other, and they both understood what the other party meant, that is, no matter whether it was right or wrong, "catch" it first.

As soon as the Yang detachment gave an order, the plainclothes police on the ground quickly rushed towards the two people, and the whole process was very smooth, the female student and the middle-aged man did not have any resistance, and they were stunned when they were arrested, as if they didn't know why the police arrested them.

Seeing that the plainclothes police quickly evacuated the scene after catching these two people, Xu Zheng breathed a sigh of relief.

At this time, Liu Ju suddenly remembered something, and asked in a low voice: "What kind of microwave pulse is this, is it the monitor used by the Soviet Union to the embassy of the beautiful country in the Soviet Union back then?" ”

Xu Zheng smiled: "Yes, that's it, but now the technology is much more advanced than at that time, I remember that it seems to be invented in 1945, what is it called Golden Lips, the Soviet people at that time were really smart."

I have been listening to the beautiful country for eight years. ”

Hong Chenchen added: "Back then, Su Guojian heard a news, but it's a pity that we didn't pay attention to it, it's a pity..."

"Ahem..."

Without waiting for Hong Chenchen to say any more, several leaders next to him covered their mouths and coughed at the same time, good guys, young people now really dare to say anything.

Liu Ju glanced at Xu Zheng carefully, and sighed in his heart, this young man is worthy of being valued by the leaders of the ministries and commissions, the reaction is too fast, and the knowledge is also very wide, and the microwave pulse is not thought of by ordinary people at all.

Hong Chenchen walked over and patted Xu Zheng's shoulder, and scolded with a smile: "How many times have you come to the Demon Capital, and you don't want to get together with us, why don't you want to see us?" ”

Xu Zheng responded with a smile, "What's the matter, I don't want to look for you, it's just that I didn't come to the devil on business, or I was arrested as a strong man, or if you ask Mr. Xu, I don't have any free time at all." ”

Xu Peixin couldn't care about them at this time, "Don't talk about it yet, let's go, let's go and see if the two people you just arrested have the kind of equipment you said." ”

Everyone hurriedly rushed to the Hongqiao Branch, and now the female students and middle-aged men have been locked up in the interrogation room, and their bodies have been searched, as for the reason used by the police, it is nothing more than who reported them.

When Xu Zheng and the others arrived, the technical police of the Hongqiao Branch were disassembling two power banks, which were connected to something like a headset.

Seeing a group of leaders coming, the person in charge of the technical police hurriedly stood up and reported, "Leaders, this thing is not a power bank, it should be a short-distance audio transmitter."

But the messages received and transmitted should have special secrets, and ordinary people who have not been trained, or do not have their passwords, cannot use such things. ”

Hearing this, the Yang detachment finally showed a relieved expression on his face, no matter what he did now, as long as he could make sure that the person was not wrong, he looked at Xu Zheng and said gratefully: "Thanks to Xiao Xu this time, otherwise, let these two people finish the conversation under our noses."

It will be even more difficult to catch them in the future. ”

Xu Zheng thought that these two people would definitely meet to make some kind of transaction, but he didn't expect that they just communicated, probably to discuss changing the trading location, in fact, he was also a little afraid in his heart, if he didn't have the audio recognition technology given by the system, he really wouldn't know about microwave pulses.

If you don't know the microwave pulse, then today's mission will definitely fail.

If he fails, he is not only embarrassed to take the simulation camera, but also embarrassed to ask for a computer 3D scanner machine.

Fortunately, the result is good now, since the Yang detachment has determined that the target people they want to arrest are female students and middle-aged people, then it means that Xu Zheng's task is over.

As for the interrogation and other work that followed, this is all a matter for the Modu police.

Therefore, he accepted it when he saw it, and immediately submitted his farewell, and the Yang detachment and Mr. Xu did not stop him this time, and sent Liu Linlin to assist him in his work.

Before leaving, he apologized to Hong Chenchen and Qu Ying: "Director Hong, Sister Yingying, let's do this today, and when I finish the work at hand, let's make another appointment." ”