Captain Wang of the Municipal Criminal Police Brigade and Director Deng of the Criminal Investigation Department joined the investigation team, and I think this may be the highest-ranking investigation team. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info Xiaolei carefully explained the problem of time deviation in the surveillance video tape again, and he later checked the bank's surveillance cameras and video recorders and found no faults. In Xiao Lei's view, it doesn't matter what caused this delay, what matters is that after the delay occurs, one hour is close to ten minutes more, and six hours is one hour shorter, and if we use the time on the tape as the standard time, there will be a problem.

Xiao Lei took a copy of the instruction manual of the surveillance video recorder and gave us one each. He continued: "This set of video recorders is different from our traditional home video recorders, it is specially designed for surveillance cameras, it actually has two video tape hatches on the left and right, because the video tape can only record for one hour, so when the left video tape hatch is recorded for an hour, it will automatically cut to the right hatch, continue to record, and so on, and the video recorder after recording, will automatically withdraw the video tape and replace it with a new tape." Because the tapes can be used on both sides, this recorder is designed with twelve tape compartments, and within a day, the camera is completely automatic, but after a day, the tape needs to be changed manually. If the camera and video time are not synchronized, there will be 10 minutes more in an hour, so what is the end result?"

I totally understand what Lei meant, but it sounds so mysterious, how could anyone do it? If this is really artificial, Jean will subvert a lot of our old definitions of science.

Director Deng thought for a moment and said, "Officer Lei, you mean, this kind of asynchronous will cause five hours of shooting, which actually takes up six hours of videotape, and the last hour is not recorded at all. When the bank changes the tapes every day, at least four hours are missing, and no one knows what's going on inside the vault?"

Xiao Lei nodded, "No one has noticed this time out-of-sync problem, and the bank's technicians have not noticed it at all." I think that the time when this did not appear on the tape is most likely the time when the crime was committed. ”

"But how did the thieves manage to keep the camera time out of sync? This is so unscientific, did someone modify the picture of the video recorder?" asked Captain Wang.

Xiao Lei shook his head, "The bank's surveillance tape has never been out of the bank at all, and there is no linear editing machine in the bank, so it is impossible to change the videotape at all." I also checked the video recorder, and no one touched it. ”

"That's weird, how did the thieves do this?" Captain Wang glared and clasped his hands on his head, the previous high-intensity investigation made him look a little tired.

"The time when the content is not recorded, it should be the time of the crime, how to steal these times, of course we have to check, but more importantly, how the thieves entered the vault, if you don't figure out this problem, there will be no big progress, the vent is a very important hint, tomorrow we will focus on the investigation, see what clues there are." Team Cao interrupted everyone's discussion and directly arranged the work content of the past few days.

After the meeting, I asked Xiao Lei how many days the time-distorted videotape was, and he told me that he had almost ten days in his hand, but because the tape was recycled, the fifteen-day one had been erased. It is not known when it started at the earliest, but it can be confirmed when it ended, November 25th.

I thought for a moment and said, "It has lasted for such a long time, assuming that this phenomenon is created by thieves, it can only mean that four hours a day is not enough for him to complete the theft, and it took him at least ten days to complete it." What kind of time-consuming and laborious work would it be? And he had finished four hours of work that day, and the next day's surveillance footage was completely invisible, so could he go back to it? What's the point?"

"Perhaps, the thief expected that sooner or later we would find out about the surveillance problem, and would check the four lost hours on the videotape, and deliberately used this method to confuse us, so that we could not confirm the exact time of his crime. Xiao Lei made this series of speculations because he obviously lost his previous confidence and seemed very hesitant.

"Xiao Lei, what you said is a possibility, but if you are a thief, a problem that can be solved at one time, in order to confuse us, repeat it a dozen times, is this possible? If you want to hide the real time of the crime, he doesn't do such a complicated thing, but there is a problem of time out of sync on the videotapes that day, and we may not be able to find it at all in more than 100 videotapes, this is the best way to hide. Therefore, I think that these ten days, maybe months, four hours a day, is a process that he must complete. I finished my judgment in one breath, but I felt even more confused.

"If you don't understand, don't think about it first, people can't get into the vault, everything is in vain, more than 100 kilograms of gold, it must be carried by manpower, it is impossible not to leave traces, let's check the vent first." Team Cao stood up and stretched.

But things will always go the way you think, and the more complicated things are, the more surprises you will encounter. The next day, we went to the bank's headquarters to look for the construction drawings of the vault. After waiting for a full two hours, the staff came out with a yellowed file and apologized to us.

After all, more than 30 years have passed, and a lot of the materials at that time have been lost, and it is good luck to be able to find this scroll of drawings.

The vault was rebuilt in '57 and basically relied on the original Central Reserve Bank building, and the vault part basically did not change much, except that the entire wall was thickened. There have been some changes to the walls of the vault's compartments, so some adjustments have been made to the ventilation ducts. Judging from the drawings, the solid line part is the changed pipeline, and the dotted line is the pipeline during the Republic of China. But regardless of the solid line or dotted line, the pipeline is out of the cement wall, and it is not marked again.

The bank staff explained to us that when the vault was rebuilt, the ventilation system of the old vault should have been intact, but the original construction drawings could not be found. Later construction should have followed the external ventilation ducts of the old vault. Therefore, the new part of the ventilation duct is marked by drawings, and the old part is extended from the outer wall of the vault, there is no record, but fortunately, for more than 30 years, there has been no problem with the ventilation duct, otherwise it is really troublesome to repair.

After the Cao team coordinated with the bank, we set off to investigate the vault on the spot.

This vault buried under the mountain, although I had expected it to be hidden and heavily guarded, was far beyond my imagination. Descending from the bank building by elevator to the fifth floor, there are three consecutive heavy iron gates, each of which requires a key and a password to open together. After that, there is a narrow passage with a length of nearly 100 meters, and at the end of the passage, there is another elevator, an elevator with a lock. Take the elevator up two floors and into a hall.

This hall is nearly 500 square meters, and the cement pillars in the middle are more than one meter wide, and the bank leaders who came down with us told us that when the vault was built, Sino-Soviet relations had already begun to be tense, and in order to prevent the nuclear threat of the hegemonic country, the vault was built according to the standard of nuclear attack prevention, and in the event of an emergency, it could also become a temporary refuge.

On either side of the hall, there are more than two meters high juxtaposed safes, lined up, and the stainless steel doors reflect a dazzling light. Each set of safes has rows of individual drawers and combination locks. On the wall in the middle of the hall, there is a gate about two meters high and wide, which is the inner vault of the vault, that is, the place where the gold was stolen.

The bank's staff walked over and opened a metal cover on the door, which contained three large keyholes and a circular combination lock. Several leaders of the bank stepped forward, each took out the key, inserted the keyhole, and turned it slightly, making a crisp crashing sound. One of them continued to turn the combination lock, and after the outer and inner rings corresponded to the next set of numbers, the door made a dull "click". The staff stepped forward, turned the handle on the door, and then slowly pushed open the door of the vault.

The moment the door of the vault opened, my heart began to beat rapidly, a familiar and terrifying feeling, but fortunately it was not as strong as it used to be near the Xuanmen, so unbearable. I turned my head to look at Team Cao on the side, who was also looking at me with a puzzled look, but neither of us spoke.

There are several rows of stainless steel shelves in the vault, but they are empty. The bank's staff told us that the bank had transferred the remaining gold and cash after the vault theft.

The staff shook their heads and replied that there were about 13 million, but not a penny.

Xiao Lei beckoned to us from the corner on the side of the vault, and we went over to see that where the side wall and the top surface intersected, more than three meters above the ground, there was a vent ten centimeters high and twenty centimeters wide. Xiao Lei took the ladder we brought in and set it up, and was about to go up, when Team Cao grabbed him, took a cone and a flashlight in one hand, and held the long ladder with the other hand, and climbed up.

Soon, Team Cao opened the metal grid on the vent, in turn, shone it with a flashlight, looked at it carefully, handed it to Xiao Lei below, and said: "Xiao Lei, take this grid back to investigate, be careful, there are fingerprints on it." With that, he climbed to the top of the ladder and shone his flashlight at the surface.

(The villain is not good at idleness, he goes to everything, sees the gentleman, and then he is disgusted.) Ignore its badness, but focus on its goodness. If a man sees himself as his lungs and liver, what good will he be? This is said to be honest in the middle, and form in the outside. Therefore, a gentleman must be cautious of his independence. --The University) (To be continued.) )