After 100 days of signing in, I was robbed by the world while

Wang Guogang was surprised and asked, “What do you say?” ”

Shen Fei squatted down, wiped his hand on the ground, spread it out to several people, and said, “Oh! Here is the storage room, the air is not circulating for a long time, outsiders are not good to come in to clean, the dust on the ground is actually very large, the suspect’s footprints step down, there is indeed no difference between depth and shallowness, but according to the place of power, the dust sticking to the shoe print is also different, I believe that there should be a comparison when extracting from the technical department, so that you can judge the depth of the footprint! ”

Wang Guogang “heh” and praised: “What you said makes some sense, I’ll let the technical department come over.” ”

He shouted at the door, “What about Xiao Zhang, the technical department? Hurry up and let him come and take the sample! ”

Soon.

Xiao Zhang ran up panting with the sample in his hand.

Wang Guogang told him Shen Fei’s reasoning just now and asked, “Did you notice when you took the sample?” ”

Xiao Zhang slapped his head and said, “It’s true!” The footprints we extracted at that time did have some subtle differences, and now they seem to be dust, but can dust alone lock on suspicion? ”

Wang Guogang and several people also looked at Shen Fei curiously.

Shen Fei shook his head and said, “Of course not!” At this time, the footprint is not the key, the surveillance video is! Judging by footprints, supported by monitoring. ”

“In fact, everyone’s walking demeanor is different, what we have to do is to extract this subtle difference, the left is the power point, the dust must be more, and the body naturally tilts in the direction of the load-bearing when walking!” If you don’t use force on the right, the sticky dust will naturally be much less! ”

“In fact, this method is not so accurate, and I can’t help it.”

But everyone seemed to see the light.

Wang Guogang smiled and patted Shen Fei’s shoulder and encouraged: “That’s okay!” Chen Feng, go and prepare the monitoring, Shen Fei, you are well prepared! ”

Shen Fei nodded.

Next.

Lao Li remained at the scene.

Wang Guogang and Chen Feng Shen Fei walked into the monitoring room.

The entire Tiansheng Trade is on the 24th floor, with a total of 18 surveillance cameras.

Among them, there are two storage rooms for safes, ensuring 360-degree monitoring without dead angles!

Wang Guogang said, “Shen Fei, what are you going to think?” ”

Shen Fei said: “Let’s look after ten o’clock last night, 18 cameras watch at the same time, don’t play it at double speed first.” ”

This time it was to study the physical characteristics of the suspect.

Even 2x speed can be misleading.

Wang Guogang obviously understood what Shen Fei meant, and said, “All 18 videos are turned on, watch them at a normal speed!” ”

The security guard in the monitoring room nodded and said, “Okay.” ”

He started playing the video.

Chen Feng said: “There is nothing to do here, you go out first, I will call you again if there is something.” ”

He learned from the previous experience.

The security guard withdrew.

Shen Fei watched the video intently.

Eighteen surveillance.

Three are elevator exits.

Two are aligned with the storage room.

Others are aimed at all corners of the corridor.

Ten o’clock in the evening.

One after another, people are leaving.

The last to leave was Wang Wei, a thin-faced man.

Next.

The lights are off.

The entire 24th floor was plunged into darkness except for one illuminated night light.

Shen Fei stared at the screen.

Outcome!

Ten minutes passed.

Not even a figure could be seen at the scene.

Chen Feng frowned slightly and shook his head: “Something is wrong, Captain, why is there no one here?” ”

Wang Guogang said: “Watch it at 32 times the speed first and see if there is anyone!” ”

Chen Feng nodded and said, “Okay.” ”

Next.

32x speed!

There was no one at the scene.

64x speed!

There was still no one at the scene.

128x speed.

It’s almost a second or two minutes of progress in the progress bar.

The three saw directly at eight o’clock in the morning.

Only then did someone enter the storage room.

Then!

It’s the scene of the alarm.

Shen Fei frowned and said, “Something is wrong, didn’t it mean that someone left at ten o’clock at night?” How come there is no one? ”

Wang Guogang said, “Could it be that you have already started when you haven’t left work?” Didn’t you say that there may be an internal response? ”

Shen Fei nodded and said, “There is this possibility!” When did they ship the money back? ”

Chen Feng said, “Five o’clock in the afternoon!” ”

Wang Guogang said, “Chen Feng, you cut the timeline back to five o’clock in the afternoon. ”

Chen Feng nodded and said, “Okay, I’ll switch.” ”

The next moment.

The 18 monitored video nodes were brought forward to five p.m.

The three watched carefully.

Soon.

Someone walked out of the elevator carrying a suitcase.

Wang Wei, a man with a thin face, walked in the front.

The middle two treasurers escorted the suitcase.

It was followed by two security guards and several security personnel in charge of escorting the transport.

Shen Fei frowned and looked at several people.

He pulled out the technical section.

The next moment.

These footprints and the people in front of them began to cross-contrast.

In the mind.

Seven enlarged footprints levitate above the mind.

The steps of these people walking in front of him step by step were presented in Shen Fei’s mind.

A moment later.

Shen Fei nodded and said, “Found it!” There are a total of seven pairs of footprints, this should only be Wang Wei’s, these two should be those two financial, these two should be those two security personnel, and the others did not enter the storage room. ”

With Shen Fei speaking.

Wang Guogang and Chen Feng both listened carefully.

The next moment.

Both saw a shocking scene.

Under the screening at the original double speed.

These people really followed what Shen Fei said.

The thin-faced man beckoned the finance two to enter with suitcases.

The company’s security guard stood right outside the door.

The other two security companies were personnel who assisted them with the money in their suitcases.

This is the duty of the security company!

They have to make sure that money gets into the customer’s warehouse safely.

After watching the video, several people were impressed by Shen Fei’s footprint identification.

Then.

Monitoring continues playback.

Since the banknotes were shipped, no one entered.

Until 10pm!

A doubt came to the minds of the three.

Since only five people entered the room from beginning to end, whose were the footprints of the remaining two pairs of strangers?