Bro, you are a policeman, not a thug

Outside the detention center.

Xiao Mu and two police officers sat on the curb, drinking water and thinking about the case.

"What did you think of?"

Zhao Xiaotang took out a cigarette, handed it to Xiao Mu, and then to Qiao Jie.

"I thought of a sentence."

Xiao Mu took the cigarette and said with a smile: "A man can't say no, he has to do it even if he can't."

"Ha ha……"

The two middle-aged men understood immediately and burst into laughter.

In an instant, the atmosphere became a little lively.

"Uncle Zhao."

Xiao Mu asked, "Do you have any ideas?"

"I've thought of everything I could think of."

Zhao Xiaotang shook her head and looked at Qiao Jie.

"My mind is empty too."

Qiao Jie also shook his head.

This case is so abnormal.

It is clear that all clues, evidence, and processes point to the suspect Dong Qiang.

But all three of them knew that it was most likely not Dong Qiang who did it.

So, what method did the other party use to deceive everyone?

Deceiving everyone's eyes?

"Since you can't think of it, I can't think of it either."

Xiao Mu suddenly laughed, "Then there is only one possibility."

Zhao Xiaotang and Qiao Jie's eyes lit up as they stared at the young man in front of them.

"Knowledge blind spot."

Xiao Mu raised his hand and pointed to his head. "That's an area the police have never been exposed to. That's why we don't know how they did it!"

It is impossible for humans to be omniscient and omnipotent.

It is impossible to be proficient in all 365 professions.

"Enough rest."

Xiao Mu threw away the cigarette butt, stood up and stretched.

"First, go find out what disappeared for over an hour!"

……

Crime scene.

Xiao Mu began the second survey.

He is looking for something.

Something that was ignored by all the police.

At the same time, it is something that can make 'time disappear'.

Whose time?

The suspect is Dong Qiang!

Why does all the evidence point to him, but he claims he has committed no crime and refuses to admit his criminal process as shown in the surveillance video?

So what if the person in the video is really not Dong Qiang.

How did the real perpetrator do it?

Clothing, height, appearance...

Even with plastic surgery, it is impossible to make two people look exactly the same, let alone twins.

But there is no problem with the video.

Some people may say, could it be a second personality, or could it be hypnosis?

Remember what I said before, Qiao Jie had found a psychology expert?

If this is the case, how could a psychologist not see it?

There is another important point that ordinary people may not understand very well about hypnosis.

Through Qiao Jie's narration, Xiao Mu learned something.

Hypnosis is not a panacea.

And there are too many restrictions.

Even if someone is hypnotized and asked to do something.

A hypnotized person will not be completely obedient.

For example, the psychological bottom line of the patient cannot be broken.

Otherwise, hypnosis will be forcibly lifted!

What is the bottom line?

For example, if someone asked you to kill your parents, would you be able to do it?

Not to mention killing their parents, even 99% of people wouldn't dare to kill anyone.

That’s the bottom line.

No matter how powerful the hypnotist is, he cannot make the subject cross the line.

Killing is just one of them.

Everyone has too many bottom lines like this in their hearts.

These are not things that a hypnotist can forcibly trample upon.

If only there were a hypnotist who could do it.

That's not hypnosis.

It's magic and immortal technique!

Xiao Mu squatted down in front of the entrance door and checked carefully.

What is he looking at?

Floor mats!

Many people have doormats at their doorsteps.

Xiao Mu checked the scene thoroughly, even the floor mats at the beginning.

However, he overlooked one issue.

Do you remember what the suspect Dong Qiang said?

His fingerprint couldn't open the password door of his girlfriend's house, and then the door opened by itself.

At that time, Dong Qiang suspected that someone opened the door.

But when he rushed into the house, he was shocked to find his girlfriend lying on the ground.

So who opened the door for him?

What does this have to do with Xiao Mu looking at the foot pads?

Hypothesis.

Could it be that there was really a third person who opened the door for Dong Qiang at that time?

But Dong Qiang hurried into the living room and was stunned by his girlfriend lying on the ground, so he didn't notice?

If this person existed, where do you think he would be at that time?

Behind the door!

If this conjecture is true.

That person's footprints will inevitably appear on the doormat.

Some people may ask, if someone wears shoe covers, will there still be footprints?

If you ask this question, you definitely don’t understand criminal investigation.

As mentioned above.

The room will become "floating dust" as the air moves.

To put it simply, it is the dust and particulate matter in the air.

These particles will be carried into the room by the air and fall to the ground.

No matter what you're wearing, as long as you step on it.

It will either 'compact' the floating dust or 'take it away'.

Whether it is compacted or taken away, traces will inevitably be left behind!

Don't be fooled by movies, like if you wear gloves and shoe covers to commit a crime, no one will be able to find you.

The plot was so stupid that I don’t know how many criminal investigators almost peed themselves laughing after seeing it.

It’s like a policeman who wears gloves and shoe covers only to reduce traces, not to avoid destruction!

Now, Xiao Mu discovered a serious problem.

There were no traces of footprints on the floor mat in front of me.

Even the suspect Dong Qiang's footprints were gone!

Why did I discover it only now? How come others would have overlooked it?

Because the video showed that Dong Qiang entered the room "very quickly".

His footprints also appeared on the floor outside the mat.

Everyone thought he took a big step and stepped over the footrest.

So this foot pad was ignored by everyone, and Xiao Mu didn't pay too much attention to it.

Is this really the case?

Do not!

When the door opens outward, people will naturally avoid the door.

Prevent collision with doors.

What is the distance to this door?

When you start taking steps from the distance of avoiding the door, no matter how big your steps are.

How far can a normal person go?

If this distance is added with the distance of a foot pad, what will it be?

How do you manage to cross this mat and do the splits?

I wonder if anyone has ever heard this old saying: Take half a step over every threshold!

What this means is that as long as there is a door in front of you, there is a threshold.

The steps people take are not very big.

Because many people may have experienced being tripped by thresholds.

When the body subconsciously encounters a threshold, the knees will rise.

When a person walks, not when he runs.

You won't take very long steps by raising your knees.

normal circumstances.

Dong Qiang's first step into the room will inevitably be on the doormat.

So where are his footprints?

Not just his footprints.

If there really was someone there at the time, that person must have stepped on the doormat.

Can we assume that the footprints of two people disappeared?

in the case of.

The floor mat in front of you is not the original one.

That's true.

Was there another person here at that time?

This person, what did he do?