Chapter 700

He Yanwei's promotion to the post of director of the Branch Bureau started from the grass-roots level step by step. Although he is not like the criminal police, he has been exposed to many major cases, but he also has a lot of experience in solving cases.

Judging from what the curators told us, we can basically eliminate the possibility of internal theft.

It will take some time for the trace comparison results to come out. We can't wait all the time, we have to do something.

No matter what kind of case it is, the shorter time it takes to find clues after the crime, the greater the probability of solving the case and the faster the speed of solving the case.

The reason why he Yanwei asked the police to contact the telecom company immediately to check the network problems is that people now live in a network era and know the most basic network equipment very well. He Yanwei has seen the terminal equipment of the museum, a optical cat and a router!

Optical cat is the device of optical fiber intervention, and then converted into network cable, access router.

Whether it's a light cat or a router, there are indicator lights. At this time, the light cat's indicator light or the router's indicator light shows that everything is normal.

The monitoring hard disk of the computer has been removed, and the video of cloud backup is not long after work, which shows that the network of the museum has a problem at this time.

If you want to destroy the network, the most simple and direct way is to cut off the optical fiber line.

But the light of the light cat shows that the optical fiber line is normal. What kind of method is used by the thieves entering the museum to cut off the network becomes a clue.

Neither he Yanwei nor the police officers he ordered knew the telephone number of the leader of the telecommunication company.

At this time has been off work, want to let Telecom maintenance personnel in place, must be the leader of the telecom company to arrange.

However, it is also difficult for the police. The police officer often wants to do such things. He makes a call to the customer service, connects the artificial telephone, and then tells his identity and gives his alarm number. He explains the situation in a simple but detailed way, and asks the customer service personnel to contact their on duty leaders.

In this case, the customer service staff did not dare to make the decision, and immediately reported the matter without hanging up the phone.

The leader in charge of customer service got through the phone, and the police officer told the police immediately that he would contact Nanjiang immediately, actively cooperate with the police, and let the police officer wait for the call.

Within five minutes of the police officer hanging up, the call came in. It was from the leader of the local telecom company in Nanjiang. On the phone, the leader told the police officer that the maintenance personnel and the company's engineers had been arranged to come over, and they would contact the police officer by phone.

In less than 20 minutes, two Telecom workers were in place, one was a segment repairman, the other was an engineer of the company.

After he met them, he explained the situation to them and asked them to find out the reasons for the problems in the museum network.

The engineers and maintenance workers immediately started their work. First, they checked the optical fiber, and sure enough, the optical fiber was connected. Then, they checked the optical cat and the router, and the two devices also showed that they were working normally.

The repairman even contacted the customer service and asked the customer service to check whether the museum's account number was abnormal online. The answer was that the account number was normal!

The engineer pondered for a while, and asked the repairman to come back to the company and get a new optical cat and a new router. He tried to replace the two devices, but it still didn't work. It showed that the network was not working!

This kind of situation, maintenance workers have not seen, engineers have not seen!

The shops on this street are also equipped with broadband network. They are from the same machine room as the museum. Engineers and maintenance workers went to other shops to test. The results show that the network of other shops is normal!

The engineer stayed in place, but let the maintenance workers go to the machine room to check the situation.

"What's the situation? This has never happened." The engineer first told he Yanwei about the inspection results, and finally said: "although we have not found out the specific reasons, we can be sure that the network of the museum must have been targeted!"

"Trouble!" He Yanwei nodded and said politely, "I hope you can find out the reason as soon as possible. After all, it involves such a big case."

At this time, the engineer's phone rang, he connected the phone, listened to a few words, only said "I know", then hung up the phone.

"Everything in the computer room is normal, and the problem appears near the museum." When the engineer finished saying this, he seemed to think of something. Another phone call came out, or he called the maintenance worker, as if to ask him to go back and bring some equipment.

After a short time, the repairman came back with a device similar to the walkie talkie, but the volume of the device is much larger than the walkie talkie, and there is a LCD screen on the top.

The engineer turns on the device and turns the knob on it. When the knob turns to a certain frequency, a red dot appears on the LCD screen.

The engineer followed the direction of the dot on the LCD screen. Seeing this scene, he Yanwei, Chen Hui and Liu Jie immediately followed.

The engineer went out of the museum and walked south. After about 20 meters, he came to a corner of the south entrance of the street. Then, the engineer began to look around carefully. Finally, the engineer opened a garbage can in the corner and found something behind it.

"What's the situation?" The engineer gave a sign.

He Yanwei immediately called in the police, wearing gloves, and put this thing behind the garbage can into a sealed bag.

"Send it to the technology department immediately to see if you can get fingerprints or something." With these words, he Yanwei turned to the engineer and asked, "what is this?"

The object discovered by the engineer is about the size of a matchbox. It is dark and has a hair thin copper wire on it.

"Let's go back and try the museum network." Instead of answering he Yanwei's question, the engineer said this.

He Yanwei nodded, and the party went back to the museum, connected to the museum's network, and the museum's network returned to normal.

There is no doubt that the problem lies in the small device.

"Why, it should be a jammer!" As the engineer spoke, he lit up the device in his hand and said, "my device is used to detect mobile phone signals when I work at ordinary times, but the frequency of this device is very wide, and it can also detect some other signals. That's why I found the jammer behind the garbage can!"

"Is this kind of jammer very common?" He Yanwei asked immediately.

The engineer immediately shook his head and said, "don't mention the common equipment. This is the first time I've seen this kind of equipment. This equipment is a real high-tech product. Only the network of the museum has problems here. It can be seen that this equipment is directional interference!"

"Well, I know. I've worked hard. If there's anything wrong, I'll contact you again." He Yanwei said.

The engineer and the repairman solved the problem, and there was no need to stay. After hearing he Yanwei's words, they said goodbye to he Yanwei and left here.

"Why, can you take me to the second floor?" Liu Jie said at this time.

He Yanwei nodded and took Chen Hui, Liu Jie, another police officer and the curator to the second floor.

The second floor of the Museum covers an area of more than 100 square meters. Apart from the safe, it is a filing cabinet around, and in the middle are all kinds of equipment for placing cultural relics.

At this time, the curator took the initiative to introduce: "Nanjiang is not an ancient cultural capital in history, so there are not so many cultural relics unearthed. Therefore, it has always been closed to the outside world, because our cultural relics are not enough for exhibition. After so many years of accumulation, we have accumulated these cultural relics. These cultural relics are enough for exhibition, and the number of cultural relics is increasing, This museum is too small and not very decent. The city has just planned a new museum, which is under construction. It is planned to open to the public after the completion of the construction! "