Chapter 941

Hang up, Jackie Chee is content.

Li Mu and Wei Lan play a good play without a script, but they have a sharp and tacit heart, which makes Xie Chenglong feel very real.

Even if Xie Chenglong had criminal experience again, kidnapping was the first time, and he asked for hundreds of millions of ransoms at the very beginning. Such a large amount is far beyond his control ability, so that the whole situation has been out of control, and he has not noticed it at all.

Many people have the upper limit of their control ability. In the market, some entrepreneurs can give them a million yuan, and they can plan perfectly. Every penny can be spent on the blade. When they give them 10 million yuan, they will be disorganized. The reason is that their strength is not enough to control the overall situation of 10 million yuan, so under the leadership of this kind of person, the company can hardly reach round B;

military On the one hand, there are many officers and generals, leading thousands of troops, who are very good and handy in fighting, but they really let him lead the army and plan how to cooperate with artillery, encircle and encircle the army. They often make a mess. The reason lies in his ability limit, which is suitable for the troops with thousands of people. If there are more, they can't be controlled.

Compared with Xie Chenglong, Li Mu, who has no criminal experience, has no advantage in the crime itself. But in the overall situation, he is countless times stronger than Xie Chenglong. Even his speaking momentum completely presses him.

It's precisely because Li Mu controls the rhythm perfectly, and Wei Lan is really smart to the extreme. Following Li Mu's rhythm, she said the two sentences in her heart until the end, which is just right.

Xie Chenglong didn't know that Li Mu already knew who was behind the kidnapping of Wei Lan. He hung up Li Mu's phone and cut off Wei Lan's cell phone battery. He heard about the signal location. It is said that as long as the mobile phone keeps on running for several minutes, the police can calculate the approximate location of the mobile phone through the signal strength of each base station. Although Li Mu didn't know that Will call the police after the call, but he dare not take the risk.

The cell phone battery is buttoned off and packed in his pocket. Xie Chenglong said to Wei Lan in a flat voice: "it's a good cooperation. I'll let you talk to him again at noon tomorrow. No one will disturb you during this time, but you also give me the truth. Don't deal with any demons or moths."

Wei Lan knows that with Li Mu's wisdom, she must have received her own message, so she has kept her heart open to see the moon and nodded to Xie Chenglong excitedly.

Xie Chenglong misunderstands Wei Lan's excitement and even laughs at her. This woman is stupid. Do you really think Li Mu promised to give money and you will live? Don't be naive. My face shows you that you can't live no matter whether you can get the money or not.

However, it is also a good thing for her to continue to hope for some life. As long as she feels that she has a chance to live, she will actively cooperate with her to get money.

Thinking of this, Xie Chenglong felt very comfortable. He pushed the door out and said to the two men who were guarding the door, "keep it for me, but without my permission, none of you can go in and disturb. Do you understand?"

Now Wei Lan is a golden Bodhisattva worth more than 100 million yuan. Xie Chenglong can't allow anyone under his hand, or even song Zhilei to have any idea about her before he gets the money.

The two subordinates also knew that Xie Chenglong was a ruthless and ruthless man. They nodded: "don't worry, brother Liu, we will not disturb you..."

Xie Chenglong nodded contentedly: "after that, my brothers are hot and tasty. I'll take you to the south, and then the women will look for you freely!"

……

Li Mu hung up the phone and didn't call the police immediately. He knew that although it was necessary to call the police, it was absolutely impossible to call the police through normal channels.

The normal channel alarm is that the following people first know, and then step up to convey the information. The way of information transmission is like the inverted pyramid. In this way, the information is spread too much, and they can't control it at all. In case the robbers know about it, it will increase the danger to Wei Lan.

Li Mu thinks that now he knows that song Zhilei is the leader behind the scenes. Next, he has 48 hours to find song Zhilei and find him, and then he can find Wei Lan.

As for the vast sea of people, how to find a song Zhilei depends on the special work of the public security department. Li Mu knows that the ability of the state machine is far beyond his imagination. At this time, he has to rely on the government.

Li Mu had time to check the SMS of another mobile phone. Song Liang sent three messages to Li Mu: "I'm here!" "What is the specific situation?" "What do I need to do now?"

Chen Ze returned two pieces to Li Mu: "grass! I'll be right there! " "I called the Municipal Bureau, he is on his way to Taobao!"

When Li Mu saw that Chen Ze had found the head of the Municipal Bureau, he felt much more relaxed. Chen Ze was indeed the son of an official. He knew that the relationship should be straightened out from the top to the bottom. First, he asked the director of the Municipal Bureau to find out the situation, and then he carefully selected the capable and hard quality elites to solve the case. Naturally, the case would be much easier to handle!

Lord Lei and senior brother Liu have been listening. Naturally, they can hear what happened. They hurried to ask about the specific situation. Li Mu told them something about it. After hearing about it, in addition to exclaiming about Wei Lan's encounter, they also sighed: "Wei Lan is really a wise woman. In two words, the most critical clues are revealed!"Li Mu said, "next, it depends on how to save people."

Senior brother Liu asked him, "what are your plans?"

"Ask Yanjing Municipal Bureau for help, but you need to find senior leaders first, who will directly assign elite personnel to solve the case," Li said

Ten minutes later, song Liang arrived first.

As soon as he entered the door, song Liang couldn't wait to ask Li Mu, "what's going on?! Did the kidnapper contact you? "

Li Mu nodded and just wanted to introduce the situation. The customer Bureau in the city also arrived.

Gu Ju, as the head of the Municipal Bureau, is really uneasy all the way.

To be honest, he didn't want to deal with Li Mu the most in Yanjing. Because he was a public security officer, Li Mu had nothing to do with him. But once something went wrong, he would have to carry the pot.

It's not easy to get involved in any relationship with Li Mu for some time. I didn't expect to fall asleep today. Chen Ze called and immediately let his nervous heart beat wildly.

Wei Lan was kidnapped. Although she didn't know much about it, she also heard about it. She used to be a famous real estate developer in Shanghai, and now she is the partner of Li Mu and Chen Ze in WANYING real estate.

Li Mu himself is difficult to communicate, and Chen Ze is involved in it. The two together bring great pressure to himself.

The kidnapping case is a very serious criminal case, which is also very easy to cause adverse social impact. There are two young gods involved in it. Gu Jianghe is really worried.

As soon as Gu Ju arrived, he was also in a hurry to ask what happened. Li Mu called Chen Ze and listened to him say that he would arrive in five minutes. Then he said to Gu Ju and song Liang, "please wait a moment, I'll introduce the situation to you when old Chen comes."

Gu bureau is very worried, can't help but say: "Mr. Li, do you need me to arrange troops in advance to let the people of the city Bureau move?"

Li Mu said: "now we can't let the information spread too much. Please take care of the Bureau. Please call some elite criminal investigation personnel to come here. I'm afraid that someone in the kidnappers is staring at me secretly. If I find out that I'm going to the Municipal Bureau at this time, it will bring them a great sense of urgency."

Song Liang, a veteran of social experience, nodded: "Li Mu's best to stay here. If you can, please help the Bureau organize a special project team, and the headquarters will be here."

Gu thought about it. If the kidnapper really stared at Li Mu's every move, he could not have any direct interaction with the police. Li Mu is not far from the city Bureau. For example, he just set up a headquarters here.

Therefore, the Bureau called several experienced criminal investigation veterans in the Municipal Bureau system at the first time. Half an hour later, all of them, with their most trusted subordinates, rushed to Li Mu's office to discuss the case.

The criminal investigation experts of the municipal bureau put forward several parallel schemes. One is to immediately find the first scene of the crime, find clues from the scene of the crime, and follow the lead. The other is to use mobile phones to locate song Zhilei's whereabouts.

The Municipal Bureau gathered a group of criminal police in an emergency, and the casual clothes began to leave the last place where Wei Lan left, that is, WANYING real estate began to investigate. At the same time, mobile operators began to actively cooperate.

The public security organ has the right to ask the operators to cooperate in retrieving the relevant information of all mobile phone numbers. Gu Jianghe attaches great importance to this matter. In the middle of the night, he calls the person in charge of Yanjing of the two operators and requests that senior technical personnel be dispatched to taobao.com immediately to fully cooperate with the public security in solving the case.

More than one o'clock in the morning, Taobao's sales just exceeded 300 million yuan. Yanjing principals of the two major operators arrived at Taobao with a few nervous operators' technicians, computers and other equipment. When they arrived, they immediately made a statement to Gu Jianghe, and would do their best to help the city Bureau solve the case.

Gu Jianghe immediately issued the first order: locate the location of Weilan's mobile phone.

After a moment's operation in the background system of mobile operators, the engineers and technicians said with a face of regret, "the other side's mobile phone is no longer on the network, and we can't locate her specific location."

Li Mu frowned: "what is your base station location logic?"

The technician said: "President Li, the base station location logic is to contact the mobile phone through multiple base stations, and then judge the approximate location of the mobile phone through the signal difference between multiple base stations and the mobile phone, such as a kilometer away from point a, 1500 meters away from point B, 1800 meters away from point C. draw a circle with the distance of three base stations as the radius. Finally, the area where the three circles overlap is It's the approximate location of the mobile phone, which is not accurate enough. The error is about one or two hundred meters. "

Li Mu said, "look at the base station record of Weilan mobile phone when it was last connected to the network, and then according to your method, can you guess the specific location?"

The technician shook his head and said, "Mr. Li, our base station will not actively record the relevant information when the user enters the network, so there is no specific base station record in our background, only the record of the time when the user enters the network."

Li Mu was very surprised: "no record? Don't your base station record by default the information of the devices connected to the network in this base station? "

The technician said awkwardly: "to tell you the truth, Mr. Li, when you are working on the Internet, the background processing is not much worse than ours. You know, a device is in the city. With his daily life track, he has to frequently switch the base station dozens of times a day, or even more. If every time he accesses the base station, the base station has to record, the amount of data written is too large , it's hard for our database to do such support... "After that, the technician explained: "only in one case can our base station actively record user data."

Li Mu asked, "what's the situation?"

"Roaming..." The embarrassment on the technician's face was even more serious. "The reason why users do not record when switching between base stations in the local area is that the amount of data written is too large on the one hand, and on the other hand, the cost is also considered. However, once a user arrives in a different place, the call will generate roaming charges. Therefore, in the roaming state, the base station will record his relevant information to charge users for roaming charges ……”

Chen Ze immediately exploded: "I shit! Your operators are not good enough! If local users don't generate roaming charges, you will not record them. If roaming charges are generated, you will not record them once? "

"This..."

The face of technical personnel is red, and the actual situation is true. Enterprises also serve for profits, and do not want to blindly store a large number of unprofitable records to increase costs and burdens.

Li Mu understands that there are hundreds of millions of mobile operators in China. If every user switches to and from the base station every day, the information will be recorded and written into the database, and the amount of data generated every day will be so huge that it will frighten people to death. Without the drive of interests, the operators will not invest so much to retain this meaningless data. Moreover, the greater the amount of data written, the greater the impact on the system The greater the impact and test of stability, so they only keep roaming data, which is in line with business and technical logic.

So, Li Mu said at this time, "let's not talk about this. I ask you, since you didn't have a base station record when your cell phone was connected to the network last time, that means that Wei Lan's cell phone was still in Yanjing City, right?"

The technician nodded: "the last time I entered the network, it was like this, but now it's turned off, so I can't guarantee whether it's still in the municipal area."

Li Mu asked again, "how long will it take you to locate the specific location if the other party's mobile phone is turned on and connected to the network again?"

"It will take at least two minutes," the technician said

Li Mu is also about to explode: "two minutes? Why? "

The technician had to explain: "just after entering the network, we can get the information of the default connected base station. The positioning method just mentioned requires at least three base stations to connect mobile phones for three-point positioning. When only one base station is determined, if it is a city, it may only be able to locate a range of one kilometer around. If it is a suburb, it may be It will locate a range of two kilometers or more, which is too inaccurate... "

Li Mu asked him, "so you need more than two minutes to determine the location, as long as you confirm the information of the first base station that is connected by default, and then let at least two nearby base stations connect to mobile phones?"

"Yes." The technician nodded and said: "the actual situation will be more complicated. Mobile phones only connect to one signal source at a time, i.e. one base station. So in order for mobile phones to connect to other base stations, we must first weaken or even shut down the signal of the first base station, then enhance the signal of other base stations, let mobile phones capture the signal and connect again. After confirming the information of the second base station Then shut down this base station, enhance the signal of the third base station to let the mobile phone connect. After the mobile phone connects the three base stations successfully, we can infer the specific location, which is equivalent to letting the three base stations successfully communicate with each other's mobile phones one by one, so the two minute time is an optimistic estimate... "

Li Mu is stupid.

Damn, I saw the criminal investigation clip in the movie before. It takes time for the police to locate the criminal suspect. In many cases, the time for the criminal suspect is just right. When the police are about to locate him, they just hang up the phone. I thought these were just exaggerations of the movie works, but I didn't expect that they were really so troublesome!

Li Mu asked again, "if at 12 o'clock tomorrow, the call time of the other party can't meet your needs, you still can't locate a specific location, right?"

The other party nodded: "we can locate a radius range, but the radius may be very large. If the signal base station is not dense enough in the suburbs, the range will be even larger..."

Li Muza smacked his lips and said, "now check song Zhilei's cell phone number and see what his cell phone is!"

At present, most mobile phone numbers do not have real name system, but song Zhilei's common mobile phone tail number is four 8 leopard numbers. This number is obtained from the mobile operator's relationship, so there is real name certification. The technical personnel from the operator began to thoroughly check the roaming situation of this mobile phone number at the first time.

However, the result of the survey was particularly disappointing: "Mr. Li, the last time the mobile phone was put into the Internet was five days ago, the place of access was in Shanghai, and then it lost the audio. It should be that the device has been turned off, and it has not been turned on until now."

"Check if there are any other cell phone numbers under song Zhilei's name?"

"One of them was shut down five days ago!"

"And his family?"

"I found out his wife, and his cell phone was turned off five days ago!"

There were many difficulties. Li Mu was a little nervous and desperate.I know song Zhilei did it, but where can I find song Zhilei? Time is pressing. The longer it is delayed, the more dangerous Wei Lan will be.

The criminal investigation team of the Municipal Bureau has started to lay out the simple clothes from WANYING real estate. At present, Li Mu has only two dependencies:

first, the criminal investigation team should find the first scene as soon as possible and follow the lead to find valuable clues;

Second, at noon tomorrow, when the bandits call for confirmation, let the operators' technicians locate the base station. Hope Can locate each other's position!

……

PS: five thousand words, this is the first watch. Tonight, we will strive for the third watch and work together! Ask for a monthly ticket!!!