The bald head smiled apologetically at A, waved his hand, and the SWAT took Little A away. After turning off the interrogation video, the bald head said: "He thought in his heart that killing the dead would bring benefits. In fact, many people have similar thoughts in their daily lives. The difference is that he doesn't just think, he acts. It's normal to think like this......"

Su Cheng said: "It's normal to take action. ”

"It's really normal to understand people's surnames, but this book is a positive book, and your statement is not right. The bald head said: "The incidence rate of family property homicide cases has been getting higher and higher in recent years, some cases have not been reported to the police at all, and some cases have family members shielded each other, but this case is also a relatively typical family property homicide case." ”

"When sons and daughters can poison their parents, it is too normal for Little A to kill the deceased. ”

"It's not normal to say that you want to be positive, so it's such a happy decision. ”

The case was solved, and Luna did a show for the first time, with the theme of being acquitted less than three days after Zoro returned to his post, he solved a mysterious murder case.

When the eyes of the hanged ghost left Z7, on the eleventh day of the new year, Su Cheng and Zuo Luo made an appointment to meet Qi Ming.

Su Cheng and Zuo Luo noticed Dai Yun who appeared in the Ma Bureau Villa, Dai Yun and Sun Qiang had direct underground contact, because Qi Ming's dormitory and Sun Qiang's dormitory were not far away, so they asked Qi Ming to secretly investigate Sun Qiang.

The appointment was made at a café near the South District Department Store, which belonged to a chance encounter, Su Cheng and Zuo Luo entered the café first, and five or six minutes later, Qi Ming and a policewoman entered the café together, talking and laughing. Qi Ming soon saw Su Cheng and Zuo Luo, came up to greet politely, and then Qi Ming and the policewoman said privately that they wanted to report to the criminal police team this year, and they would have a relationship first. The policewoman understood, took out a waffle and left, and Qi Ming sat down in front of the two enthusiastically.

"Don't be so careful. Qi Ming glanced left and right.

"It's not expensive to be careful. Su Cheng asked, "You say." ”

"Through the observation of more than a month, Sun Qiang is so strange, I didn't find that he has socializing and socializing, every day from school, either go home to nest, or go home and then drive out alone, the time is very short. But he is not an otaku, he still gets up according to the workday routine on holidays, rarely plays with mobile phones and computers, reads books, goes downstairs to wash his own car, and he will change the oil and maintain the car by himself. Last time he was observed helping a lady change a tire, he was quite skilled. ”

Su Cheng asked, "Where are you going to go out by car?"

"I don't know, once a week, on Friday, about two and a half hours. Carry a black travel bag every time. Look at the photos. Qi Ming took out his mobile phone, and he took a few photos of Sun Qiang: "This is when he avoided others, his backpack was pressed against the wall, it was too far away, the lens was not professional enough, and the shooting was not clear, but at that time I saw that his bag was completely deflated and an empty bag." ”

Qi Ming put another photo: "I'm very strange in this one, Sun Qiang can maintain the car by himself, I saw him change the engine oil, using semi-synthetic engine oil." But it was a Saturday morning out, and he was carrying fully synthetic motor oil. ”

Su Cheng and Zuo Luo glanced at each other, which meant that Sun Qiang still had a car.

Qi Ming said: "I have been keeping an eye on Sun Qiang's car when I was patrolling, and at 8:40 p.m. the night before Chinese New Year's Eve, I found Sun Qiang's car. I was driving at the time, and I followed for about a kilometer, and because he accelerated, our patrol car couldn't accelerate casually, so I lost it. ”

"Where is it?"

Qi Ming opened the map on his mobile phone, and at the top of it, there was a red dot marked on the map, Zuo Luo looked at it for a while, and said, "The shantytown near the second elementary school of the experiment." ”

This shantytown is rare in the city, their buildings are the buildings of the 70s and 80s, the staff dormitories of enterprises and institutions at that time, there are bus stations, grain and oil, post and telecommunications, etc., forming a special area. After all, the status of this kind of workers was very high in those years, commonly known as the iron rice bowl, a state-owned enterprise unit.

As a result, Experimental No. 2 Elementary School became one of the best elementary schools in the city that year, and it is now quite good. In the late 90s, the commercial housing reform began, and these dormitories became welfare housing for workers, which could not be bought and sold, but had the right to live for a long time. Due to the hardware requirements of the Education Bureau, Experimental No. 2 Primary School began to negotiate with the area for the purchase of land five years ago. Most of the people living here are laid-off workers, or retired workers, their dormitories are not big, and the toilets are still shared on the floors, but after all, they are houses, so they opened their mouths, and at the beginning there were two sets of 100-square-meter houses, plus decoration. In the end, they gave in to a more prosperous 100-square-meter house in the southern district, plus 500,000 yuan for decoration.

If this problem cannot be solved this year, the municipal government will consider public welfare land acquisition or revoke the second elementary school, and the public welfare land acquisition will make up how many square meters per capita. The residents are reluctant, and the problem is that the city government only needs half of the land, whether to expand to the east or south, depending on which of the residents on both sides pays the lowest price. The residents hired a lawyer, who argued that the city government must provide the necessary proof that a primary school must be built here, otherwise the second elementary school could be demolished and relocated.

The area of this area is not small, there are 12 honeycomb-style dormitory buildings, although not high, but because of the small room area, there are many people. Secondly, there is a vegetable market, a guest house for military demobilization, a two-star hotel, snack bars, restaurants, convenience stores, and an office building built in the 90s.

This area looks very cluttered on the surface, because the streets are relatively narrow, but the security is quite good, these houses are basically not rented, can only be lived by the workers themselves and their children, after the death of the workers the house is taken back by the unit, according to the working years of other employees.

Because of the development of automobiles, these dormitories have also begun to be rebuilt, such as the firewood house into a garage, such as the original green belt was demolished and replaced with an open-air parking lot, and the right side of several streets has been sorted out for everyone to park.

"Most of the houses in this area are not available for rent, except for office buildings, a guest house and a guesthouse. And it's a safe place. ”

Su Cheng asked suspiciously, "Why?"

Zoro said: "For example, burglary, there are a lot of people living in a building, and everyone will pay attention when they see a new face, and even someone will come forward to ask." Seven years ago, a murder occurred in the wet market, where a thief was beaten to death by hundreds of people. Whoever beat it, no one admits it. The surveillance was very low-definition at the time, and no one could be found. The most important thing is that they are more familiar with each other and will not betray others. ”

Su Cheng said: "We have checked Sun Qiang's background, he is a security guard, a native of City C, two years after being discharged from the army, he came to City A at the age of 21, once entered the boiling water security company, and went to the branch of A University as a security guard half a year later, until now, six years." He was not found to have any relatives in the area. ”

Qi Ming is in charge of patrolling this area, and introduced: "There are several parking lots in this area, the first is the parking lot on the basement floor of a two-star hotel, and there are about 40 parking spaces. The second place is that on the right side of the street are all parking spaces, and there are more than 200 of them. The third place is that after the courtyard in front of the dormitory building is bulldozed and greened, the parking spaces are about eight to ten per building. ”

"Aren't there any parking spaces in office buildings and guest houses?"

"Yes, but there are only a few parking spaces at the door, and there may be about a dozen of them. ”

Su Cheng said: "Assuming that Sun Qiang still has a car, it is impossible for him to change the oil on the side of the road, the oil needs to be filtered, and a container is needed, otherwise the ground will be polluted, at least it is a relatively loose underground parking lot, and it cannot be a roadside parking space for cars and people." Is there a garage in this area?"

Qi Ming said: "If you want to talk about garages, there is." I don't know how much, but at that time the dormitories were equipped with firewood rooms, bicycle parking, and clutter stacking. Someone opened up two firewood rooms and converted them into garages. Some people in office buildings are still very rich and drive good cars, and they will rent these converted garages. This kind of alteration is illegal, but it does not damage the interests of others, and the police are not very enthusiastic about interfering. ”

Su Cheng said: "If Sun Qiang is here in this shantytown, then his second car should not belong to him." ”

Qi Ming said: "If you want to check, you can watch the surveillance video, and the roads in the entire area are covered by surveillance." "Non-traffic monitoring is a city-wide security monitoring managed by the command center.

Many people wonder if there are so many probes in the city, and who is watching. This question can only be answered by separating the camera, (only in a certain city) the first part is traffic monitoring, violations and other capture classes, someone sees, a person is responsible for more than a dozen or even more than 20 screens, and not 24-hour monitoring, in addition to targeted monitoring, such as traffic strict management streets, etc., there are special people to watch, if the location is violated, it is likely to be captured.

The second part is public security monitoring, which is not watched, but automatically recorded, which generally belongs to the resources of the district police station and the district bureau.

The third part is the bow security monitoring, this part of the camera is monitored 24 hours a day, even if you want to go to the bathroom, you will let others replace you. Usually similar to the first one, one person looks at one or twenty screens.

The security department has the authority to the cameras of the three, and to put it simply, the police station can directly access the only security surveillance video. At the same time, although other departments have the authority to monitor public security, they will not watch the security cameras in real time.

When encountering pickpockets or being beaten up on the street, the police station can solve the problem of public security through the video recorded by its own authority. If it is to solve a criminal case, you need the permission of Gong'an monitoring, and you can access public security and Gong'an surveillance video.

......

Song Kai said: "Boss, the monitoring in this area you mentioned is a bit special, and most of the monitoring in City A is a special line optical drill. Due to the location and occupancy of this area, their surveillance drills are not buried underground. "The monitoring in this area is relatively old-fashioned, and several monitoring is managed by a monitoring box, which is then transmitted to the police station, and is not underground.

Song Kai opened a few pictures, there are many lines in the middle of the air in this area, there are wires and optical cables, one building is connected to another, dense, all of them are open lines. This is one reason why the area is called a shanty town.

Song Kai said: "At present, the monitoring of this area has not been integrated into the 'ground network', a few years ago, after waiting for this area to be planned and demolished, and then using the method of burying the special line optical brazing to connect to the grid. At present, the monitoring of this area is kept by the police station, and you can connect to the police station to view the surveillance video or real-time video if necessary. ”

Su Cheng asked, "Is there any difference?"

"The difference......" Song Kai thought for a while: "Basically, there is no difference, the only point is that we look at other regional monitoring, because we have the authority, not specifically for us to monitor, and we will not be found to call monitoring." If it is for shantytowns, the monitoring ...... The people at the police station know. There is no difference in itself, but Song Kai feels that these two people don't seem to be doing the right thing, so they still say it very clearly.

Su Cheng and Zuo Luo glanced at each other, and Zuo Luo asked, "Is there any way not to be discovered?"

Song Kai said: "Formal channels will definitely be discovered, unless they are hacked." The network of the police station belongs to the ordinary network, which is different from the dedicated optical drill. As long as you hack into the police station computer first, you can enter the surveillance without being detected. Song Kai explained that we belong to people with keys, and it is okay to open the door and enter, but it will be discovered by the people inside the door. It's better to be a thief, sneak into the house, and without going through the key, you won't be discovered.

Zoro asked: "Suppose there is a bad guy who chooses this area to do bad things, and there must be his internal response in the police station, and if we access it, they will find out." Right?"

Song Kai said: "No, boss, even if the police station has an internal response, you still need to stare at the screen to find out that we are accessing." I'm worried that hackers like me have Trojans and the like planted in them, and when the outside world accesses or someone monitors the monitoring, the Trojan horse will be activated and a message will be sent. ”

The network security of police stations and vehicle management offices is not as good as the network security level of police stations. In a certain news, hackers hacked into the computer of the vehicle management office and deleted 10,000 violations. It was found to be accidental, a police officer suddenly disappeared from the violation of a car in his memory, and the system itself was not found to be an illegal operation. This hacker is a relatively professional person, he was originally an outsourced person of the DMV, and later had the ability to invade remotely, not physically. The police system uses an intranet and has a dedicated technical section responsible for network security, which may not be able to defeat the big hackers in the world, but still have the ability to find that the data with a high level of security has been compromised. Of course, physical intrusion in the case of a burglary by the Internal Affairs Bureau is a different story. Conversely, the use of physical intrusion to obtain the top secrets of the Internal Affairs Bureau indicates that the other party was unable to complete the intrusion into the Internal Affairs Bureau through a remote network.

Zoro understands that this area is a safe place for technology. Zuo Luo looked at Su Cheng, what are you doing? Su Cheng nodded, do it. It's all here.

Just do it, Song Kai started to work, the network security level of the police station is not high, and it is not an intranet. The main reason is the problem of national networking, vehicle information, household registration information belong to the national network. Song Kai successfully infiltrated the system, and then began to check the monitoring.