Song Yi used the key to open the door of his small office and walked in cautiously.

The first thing he did was look at the invisible cameras that his computer was monitoring.

However, he found that the computer was in a state where the power had been cut off.

In other words, before someone sneaked in, they disconnected the power switch in his office, deliberately making the video equipment in his office unable to work.

He checked his safe again, and the hair was still there.

He checked his desk again, inside and outside the drawer, and everything was as it was.

If this person has ever come in, he is really a top spy, and he steals things seamlessly.

However, the road is one foot high, and he still plays a cautious eye.

The master said:

"As long as a person has been to the scene of a crime, he will leave traces, and it is impossible to cover everything.

"People who are overly thoughtful tend to focus on the details and ignore the big picture.

"For example, when people pay special attention to their hands, they neglect the ...... of their feet."

According to this theory, he deliberately put some transparent glass glue fragments in front of the safe and desk before leaving yesterday.

The sticky side is up, and it is a total of 20 pieces.

The man entered the house after the power was cut off, and he must have held a flashlight or something like that, the light was not very bright, and it was difficult to find these transparent glass glue fragments on the ground, and it was normal for his feet to stain these glass glue away.

He counted the shards of glass glue on the ground, and together with the soles of his feet, there were only 7 pieces in total, that is, 13 pieces were missing.

A mocking smile appeared on his face: "Cunning fellow, you did come in!"

Since the figure of that person was not photographed in his office, it is impossible that the public monitoring equipment in the bureau did not photograph it.

He always had to pass through the door of the big office outside, because although his office had a window, there was a stainless steel security window outside the window, and he couldn't get in through the window at all, so he could only enter through the door of the big office outside.

And right across the door, there's a camera.

However, he was disappointed by the results of the examination in the monitoring room.

From the time he left the office door to the time the first team member entered the office, no one had been in or out.

Could it be that the person was suspicious of Mu Rongheng's visit, and knew that he had set up the situation, so he was not fooled?

How to explain glass glue?

He was puzzled, and walked back all the way, passing by the big office, and saw many people laughing.

It turned out that a team member was napping on the back of a chair, afraid that he would be discovered, so he wore a pair of sunglasses to cover his eyes, and another team member pasted two notes on his sunglasses, on which were drawn closed eyes.

Song Yi patted his head, and when he was inspired, he quickly ran back to the monitoring room and watched the video again.

It's about 1 a.m., which should be the time when most people are asleep, including the uncle in the communication room.

I saw that the image of the gate of the criminal police brigade suddenly became blurry, but it was only a second or two, and it soon became clear again.

Such a change in such a short period of time is not noticed by ordinary people at all.

An hour later, the same thing happened again, and the footage was similarly blurry for a second or two before returning to normal.

He found a ladder and looked closely at the camera's stand.

That's right, there are parts of the place where the dust has been freshly wiped off.

Then your guess is not wrong:

Someone used the exact same high-definition picture of the gate and pretended to be taken by the camera, but in fact the camera was blocked.

Then the man can come and go in and out in a grand manner.

It seems that this person is not only proficient in lockpicking techniques, but also good at planning.

If you are a delicate person, you are not a reckless man.

He quietly asked trace experts to extract footprints and fingerprints from his office, looking for suspicious traces.

Fingerprints were not extracted, not even on the camera mount.

It seems that the man is guarding against this, wearing gloves.

However, the footprints mentioned a few: the suspicious footprints were obviously wearing shoe covers, and the sole lines could not be seen, so they could only approximate the size.

"Definitely not more than 40 yards." The trace expert affirmed.

Song Yi hurriedly went to the logistics department to get a record book of the unit's customized military shoes.

After investigation, there are only 5 people who work in this sub-bureau with a shoe size of no more than 40 sizes.

Of the five, four were women and one was a man.

The man can be ruled out, because he was sent to the grassroots level to exercise, and he has not been in the bureau at all for a while.

Among the three women, Accountant Wang, who has already gone through the procedures for internal retirement, can be excluded.

There are two left, one is Xiao Sun in the archives, and the other is Xiao Hou, the assistant of the Zhong Deputy Bureau.