"Didn't leave the police station?" Liu Fei's face showed a look of surprise. He asked, "Director Lu, how do you make this judgment?" ”

Lu Kai said with a cold expression: "Before I came, I had read various reports on the Internet, and the online reports said that these people were beaten to death!" But judging from the scene, it is absolutely impossible, and judging from the traces at the scene, the criminal's IQ is very high, and the anti-reconnaissance ability is very strong, and this kind of person must be a person who is proficient in public security criminal investigation work, at least a person at the level of business elite, and this kind of thing happens in Dongning City, and this person's IQ will definitely not leave, because once he leaves, it means that the suspicion is very great, I think that above the criminal, he will not make this kind of mistake. Therefore, the other party will definitely stay in the police station. ”

After listening to this, Liu Fei looked at Liu Zhan, and Liu Zhan also nodded affirmatively, "That's right, I think Director Lu's judgment is very reasonable." ”

Liu Zan said to **: "**, you go to the monitoring center and call up the surveillance video to me, starting this afternoon, all the videos that entered the scene of the crime will be called out for me." ”

**After receiving Liu Zhan's instructions, he immediately rushed to the monitoring center, and fifteen minutes later, he quickly rushed back with a laptop in his hand, "Including Secretary Liu, the surveillance video has arrived." ”

Soon, Lu Kai, Liu Zhan, Liu Fei and others came to the small conference room with laptops, connected the laptops to the projector, and began to carefully analyze the video recordings, but the video recordings were seen from the beginning to the end, and from the end to the end, and they watched it three times, and did not find any suspicious people entering the scene of the crime. This situation made everyone very headache.

Liu Zan stood up and said to Lu Kai: "Director Lu, why don't we go to the scene of the crime first to see the situation of the footprints, and compare the situation of the footprints with the people who entered the scene of the crime shown on the video to see if there is any missing information." ”

Lu Kai nodded and said, "Well, although this method is relatively stupid, it is indeed the only way to find clues, let's go!" After speaking, Liu Zan took Lu Kai and others back to the scene of the crime again, but Liu Fei did not go over, because he knew very well that his specialty was definitely not to investigate the case, and even if he went to the scene, I am afraid it would not be of any use, in that case, it would be better to use his expertise to find out from other aspects.

After everyone left, Liu Fei sat on the chair and watched the entire video video over and over again in a fast-forward state, after watching it almost seven or eight times, more than 1 hour had passed, Liu Fei still didn't find any situation, but he knew everything about the whole video recording, when Liu Fei saw it for the ninth time, he squinted his eyes slightly, and looked at the video screen carefully, suddenly, when the video screen was about to end, Liu Fei found sensitively, There is a picture although the connection is relatively smooth, but the content of the video screen has taken a relatively large leap, the video screen is still the situation in the corridor one second, and the next second is the situation indoors, especially the time display above, there is a lack of more than 20 seconds of time in the middle, seeing this situation, Liu Fei immediately located this place, and watched it carefully and carefully several times, yes, it is less than 20 seconds!

Suddenly, a bean-sized question mark appeared in Liu Fei's mind: "Where did the more than 20 seconds in the middle go?" Could it be that there is a problem with the equipment? Just put forward this possibility,It was denied by Liu Fei,If there is a problem with the equipment,The video screen can only be pitch black,It must not be so smooth,Since this is the case,Then there can only be one possibility,That is, someone erased the video data of more than 20 seconds! Liu Fei is a top student in the Department of Computer Science of Peking University, and he is very good at computer technology, digital signal processing technology, and communication technology. Immediately, Liu Fei became excited, as excited as if he had found a rare opponent. That's right, how many years, since Liu Fei became an official, there is little time to be able to give full play to his expertise in computer technology. I didn't expect that God would give me such a rare opportunity.

Thinking of this, Liu Fei no longer hesitated, and immediately connected the laptop to the intranet of the Municipal Public Security Bureau, and soon through the internal network, he easily overcame the firewall installed before the server of the Public Security Bureau, cracked the administrator's password and entered the server of the monitoring center. Liu Fei carefully checked the log records on the server and found that someone had entered the server during that time, although the other party erased the log records of that time before leaving, it also exposed the fact that someone had entered. Liu Fei carefully checked some other database records and log records, and found that the other party had also been wiped clean.

Liu Fei's face showed a sneer: It seems that the other party is really a thoughtful master! It's a high-grade hacker, at least the other party is very familiar with the Microsoft operating system! Thinking of this, Liu Fei quickly typed down a piece of assembly code on the computer, and then turned the code into an executable program, and soon, a miniature blue box appeared on the computer screen, and in the blue box, the IP address of the other party's computer appeared prominently on it. Liu Fei quickly recorded the IP address in the blue box, and asked the network administrator of the Municipal Bureau Information Center to call over, Liu Fei pointed to the IP address on the paper and asked, "Do you know who uses this IP address?" ”

After glancing at the IP address, the bespectacled network administrator said without hesitation: "This IP address is used by Deputy Director Jiang Biaojiang's computer. ”

Liu Fei nodded lightly, and then dialed Liu Zhan's phone, "Liu Zhan, is Jiang Biao here?" ”

When Liu Zan heard Liu Fei's question, he glanced at Deputy Director Jiang Biao, who was his right-hand man, and nodded and said, "He is by my side." ”

Liu Fei said: "Well, that's good, remember, no matter what the circumstances, don't allow him to leave the Municipal Public Security Bureau." ”

Liu Zan nodded: "Well, I see." ”

Half an hour later, Liu Zan and Lu Kai and others returned to the conference room, and Liu Zan reported to Liu Fei: "Secretary Liu, according to our comparison of the footprints at the scene of the crime, except for a pair of No. 43 sneaker footprints at the scene that could not find the owner, all the other footprints have been found, and we believe that the owner of the No. 43 sneaker footprints should have a significant relationship with this murder case, and he is likely to be the suspect." According to our analysis of shoe prints, the owner is about 1.80 meters tall and weighs 80 to 85 kilograms. ”

While listening to the report, Liu Fei's eyes quietly glanced at Jiang Biao, only to see Jiang Biao sitting not far from Liu Fei, relatively fat, looking more than 80 kilograms, but he was relatively short, and he looked like he was wearing No. 40 shoes.

After Liu Zan finished his report, Liu Fei suddenly looked at Jiang Biao and asked with a smile: "Director Jiang, where are you between 6:30 and 7:30 this afternoon?" ”

Hearing Liu Fei's sudden question, Jiang Biao's face sank, and everyone present looked at Liu Fei with surprise, no one thought that the secretary of the municipal party committee would suddenly ask Jiang Biao this question. Liu Fei asked questions as if he were questioning a suspect. All eyes were also focused on Jiang Biao.

Jiang Biao showed an angry look on his face, and said loudly: "Secretary Liu, what do you mean by this?" Do you think I'm a suspect? ”

Liu Fei smiled faintly: "I didn't say that, I just asked you, where were you during that time?" Isn't it okay for your superiors to ask about this matter? ”

Jiang Biao gasped and said, "Yes, of course you can, are you the secretary of the municipal party committee?" I can tell you plainly that after getting off work today, I went to the cinema with Deputy Director Wu of the bureau's office to watch "Kung Fu Panda 2", which is my movie ticket! After speaking, Jiang Biao took out a movie ticket from his pocket and slapped it on the table, and said angrily: "If you don't believe it, you can call Deputy Director Wu over and ask!" ”

Liu Fei shook his head lightly and said, "No need to ask, I believe that everything you said is true!" ”

"Hmph, it's so deceitful!" Jiang Biao slapped the table violently and roared angrily. As he spoke, he suddenly lay down on the chair with a pale face, his body began to twitch, and he was sweating profusely.

At this time, a deputy director next to him said: "It's not good, Director Jiang has a heart attack, quickly, send him to the hospital." ”

At this time, Liu Fei said coldly: "Director Jiang, how long do you still want to act?" Do you think you can get away with the law? Don't you want to treat heart disease? Don't be afraid, you can't die, I've already found you a doctor! After Liu Fei finished speaking, he clapped his hands gently, and soon two doctors rushed in from outside, holding various testing instruments in their hands and came to Jiang Biao's side and began to get busy, after a period of busy work, an attending doctor stood up and said to Liu Fei: "Secretary Liu, Director Jiang has no problems with his body, and all physical tests are normal." ”

At this moment, the whole room immediately fell silent, and even Lu Kai and the others looked at Jiang Biao with shock.

Everyone is not a fool, although there is no evidence that the real murderer is Jiang Biao, but why should Liu Fei suspect Jiang Biao? Why did Jiang Biao pretend to have a heart attack?

All of a sudden, the atmosphere in the entire conference room suddenly became tense, and all the people in the internal defense department had already put their hands on the handle of their guns.

At this time, the office director Luke pushed the door and walked in and said to Liu Fei: "Secretary Liu, someone from the Technical Investigation Bureau of the Ministry of Public Security is here." ”