The Blind Date Went To The Wrong Table, I Was Kidnapped By The Blind Date Partner

Chapter 1224 Trace evidence (more)

What's so nice about windows?

Xiao Yu felt that if something went wrong in this room, it could only appear on the window.

Through the investigation of the members of the second team, there was a fingerprint of the deceased on the handle of the window at the scene.

Why did the deceased open the window?

Common sense, when people stay in a hotel, they seldom open their windows in winter.

If it is turned on, it is mostly because the air in the hotel room is not good, so take a breath.

But this kind of thing basically doesn't happen in five-star hotels.

If you can't even guarantee the air quality, do you deserve a five-star rating?

Here comes the problem.

Why did the dead open the windows in the winter?

an examination!

There is a category of people who have some professional habits on weekdays.

Every time they go to a strange place.

For example, the hotel where you stay will check the environment.

For example, Guoan Secret Service belongs to this kind of people.

There are generally three points to check.

One, to prevent being monitored.

Second, the emergency escape route.

Three, whether there is danger.

Of course, having this habit is not necessarily a Secret Service.

For example, killers, mercenaries, spies, and certain special professions all have this habit.

This habit is formed through experience, training, and occupation.

devil... the profession of an accident maker.

The nature of their profession is to create an accident.

Good surprises and bad surprises.

Through familiarity and mastery, they know how terrible the accident can be.

For example, anyone who can swim knows how scary it is.

However, there is also an old saying.

Most of those who drowned will!

Just because of the fear of accidents, the accident maker will be extra worried about accidents happening.

Every time they go to a strange environment, they will check very carefully to check for accidents.

Wanting to understand this, Xiao Yu opened the window and looked at the outside environment.

"There is no sniper perspective, no signs of climbing and entering, the outer wall is gray and normal, and there are no signs of being invaded..."

Xiao Yu said to himself, "Could it be that someone really has mastered the power of a god, or a special function, and can arrange coincidences and accidents without entering the scene?"

Impossible!

His head is a little big.

Failure to decipher the mystery of the deaths of the two deceased would have turned into a true accident.

He doesn't want his IQ to be rubbed on the ground!

"(ahea) Since Murphy's Law doesn't work, try...Roca's Law!"

Xiao Yu murmured, "Where two objects come into contact, there will be a phenomenon of displacement... there will be traces left at the scene!"

What is Roca's Law?

Roca, the name of a senior foreign police officer.

Full name: Edmond Rocca.

In 1999, Rocca established a set of golden criminal investigation laws.

Human beings, no matter what kind of contact they have made, must leave traces of evidence.

And his report also laid the cornerstone of modern forensic science.

What is trace evidence?

For example, traces of hair, fibers, body fluids, etc., and various trace objects left at the crime scene.

For example, there was a 'perfect crime' incident in the world.

After committing a crime, the criminal is naturally so perfect that no trace is left behind.

However, by Roca's law.

The criminal investigators found a small amount of... dandruff.

Someone might have laughed.

What is dandruff?

No, very much.

Dandruff is a shedding of keratinocytes that contain human DNA.

It's just a little bit of dandruff that disappears with one breath.

Let the criminal investigators lock the suspect.

The 'perfect criminal' was caught.

So, as long as some laws are not overturned.

Then there will be no perfect crime in this world!

Opening the falcon's eyes to the extreme, Xiao Yu's eyes moved slightly, and checked the inside and outside of the window carefully...no result!

Fooled by those laws?

Xiao Yu's head is a bit big.

Can someone really intrude into this room without anyone noticing?

No, Xiao Yu shook his head.

Man, absolutely can't do that.

But... Xiao Yu's head suddenly became smaller again.

A light flashed in his eyes.

Just because people can't do it doesn't mean that 'things' can't do it.

So, what's the 'thing' that can enter this room quietly without being discovered by the dead?

Xiao Yu looked at the window in front of him, lost in thought.

biology?

Probably not.

First of all, it must be 'minimal', so that it will not be easily discovered or ignored by others.

How can there be such a small controllable creature?

So it can only be... technology?

If it is technology, if you want to enter this room without leaving any traces...

Suddenly, Xiao Yu's eyes lit up again.

Was it the moment when the victim opened the window?

Explain that he knew very well that the deceased had the habit of checking the new environment wherever he went?

I also know that the deceased must open the window and check out the window.

The moment the window is opened, let some 'technology' enter the room?

The guest room is on the fourth floor, so this 'technology' should be able to fly, right?

Moreover, this 'technology' should be 'trace', or... miniaturization?

Flying technology, miniaturization?

Xiao Yu raised the corner of his mouth.

Drones?

Trivia.

How big is the world's smallest drone?

There is a drone called Aerius.

It is only about 4 centimeters long, not much bigger than an ordinary coin.

However, this drone was developed years ago.

Things like technology are updated every year.

You can't be sure, 4 cm is the limit of the smallest drone.

For example, the military.

As early as last year, the "honey thorn" unmanned reconnaissance aircraft with a size of only two centimeters was developed.

But among the people, there are so many capable people that you can't imagine.

Who can guarantee that there will not be smaller drones?

However, the smaller the drone, it also represents a disadvantage.

battery life problem.

For example, the Aerius UAV can only last for minutes.

Under normal circumstances, the smaller the battery, the shorter the battery life.

If someone controls the mini-drone, the moment the victim opens the window, he can enter the guest room.

Something has to be done in just a few minutes.

Otherwise, it will fail due to the problem of drone endurance.

focus.

Even if certain things are done, it is impossible for this drone to leave the room.

Because at that time, the deceased would definitely close the window after checking out the window.

So... this drone must stay in the guest room?

"No!" Xiao Yu frowned.

The guest room has been checked by him, and it is impossible to have a drone.

So where is this drone hiding?

Xiao Yu walked slowly, checking everything in the room.

Finally, I stood in the bathroom, in front of the toilet.

His eyes were fixed on the sewage outlet in the toilet.

is it here? ! .