Coroner Coroner

"you…"

Lin Xinyi was severely choked:

"Why doesn't your on-site investigation department have anything?"

"Then what did you investigate?"

Even the most basic survey equipment is not available. No wonder they have successfully controlled the suspect, but they still have to ask for foreign assistance.

Otherwise, if the police can find traces scientifically and effectively, why would a detective be needed in this case?

Thinking about it this way, the one who co-authored the Metropolitan Police Department's crotch pull was not a search class at all, but was hindered by your forensics class!

"and many more…"

Lin Xin reacted in an instant.

He turned his head and looked at the Mumu police department with a resentful expression:

"Is it this kind of forensics class that the Metropolitan Police Department gave me to manage?"

Chapter 57 Earth Law Survey

The Mumu Police Department turned his head with some guilt.

How incompetent the forensics class was, he knew very well:

The only thing these guys can do is walk around the crime scene with a camera.

Not to mention looking for potential traces that are invisible to the naked eye, even "big guys" such as hair, earrings, dents, line marks, etc., they often have to be reminded by famous detectives to find them.

The forensics class was so incompetent that every time a reporter came, it was a search class that was embarrassing.

When I went back to see the leader, the one who was scolded was still searching for a lesson.

Do whatever you want, No. 1.

Evidence is invisible, public funds play photography.

Thinking about it, the Mumu police department has some grudges against the pig teammates in the forensics class.

Originally, he instinctively rejected Lin Xinyi, a young airborne management officer, but now think about it...

Indeed, being an administrator in a forensics class is like being a teacher in a kindergarten. If you have a bad attitude, you will become autistic.

"Well..."

Seeing the guilty expression of the Mumu Police Department, Lin Xinyi sighed helplessly.

He turned his attention back to the case itself, then turned to the police officers from the investigation department and said:

"Give me your site survey package."

"Let me see what's in there!"

With that said, Lin Xinyi took the survey bag from the other party's hand regardless, and opened it to take a closer look:

Tweezers, tape measure, gloves, shoe covers, scale, notebook, marker, evidence bag, magnifying glass, flashlight, regular brush, fingerprint tape…

Then it's gone.

The only thing in it that can be regarded as a scientific and technological survey equipment is the fingerprint tape used to extract fingerprints.

The autopsy department has equipment and no one, and the survey department has people and no equipment.

Both sides are just right to the key place, and the dishes are very level.

"Forensics class is at this level..."

"How did the Metropolitan Police Department solve cases before?"

Lin Xin instinctively questioned.

"..."

This time, not only the police officers in the forensics class lowered their heads to study the floor, but even the people who searched the first class were still hot:

How did the Metropolitan Police solve the case?Of course it's a detective.

For a while, the atmosphere was extremely awkward.

On the other hand, Mr. Zunde Seyu burst into laughter in his heart, and almost stood up without patting the armrest of the wheelchair:

"Hahaha... This guy is still counting on the Metropolitan Police Department to help him solve the case?"

"Today I'm sure to win!"

With these thoughts in his mind, his expression became more stable.

But at this moment, Lin Xinyi let out a long sigh, and then said helplessly:

"Alas... I'll help you find footprints and handprints this time."

"Remember to go back and fill up all the equipment for me, and learn by yourself!"

"Eh?" Everyone was slightly taken aback.

Especially for Zunde Seyu, his expression changed on the spot because of fright:

"No, doesn't it mean that you don't have equipment, you can still find traces that are invisible to the naked eye?"

"Huh?" Lin Xinyi cast his eyes suspiciously.

"Ahem...I'm just curious." Zunde Seyu smiled and defended with difficulty.

"of course can."

Lin Xinyi retracted his eyes thoughtfully, and said firmly:

"Although there is no professional equipment, it is difficult to find the specific location of handprints and footprints."

"But this time the situation is different. We can basically infer the location of these traces based on the facts of the case and the scene environment."

"I said just now that the footprints can probably be found on the balcony walls and handrails."

"And handprints..."

As he explained, he slowly walked to the front of the balcony.

It was not until he stood down in front of the wooden-framed glass balcony door that opened inward, Lin Xinyi turned his head and asked the servants present:

"Is this balcony door usually closed?"

"Yeah." The servant replied immediately, "This room has never been used. We will close the doors and windows after cleaning."

"That's good,"

Lin Xinyi looked at the wooden framed glass grid door and continued to explain:

"The murderer entered from the balcony, and it is very likely that he pushed open the door from outside the balcony."

"And this is a glass grid door. If this door was pushed open by the murderer, then we should be able to find the murderer's handprint on the outside glass of this door."

"bring it on…"

With that said, he waved to the police officers in the forensics class:

"Come here, you also come to this glass door to look for handprints."

"Yes!" The young police officers surrounded him.

Then, under the guidance of Lin Xinyi, they gathered around and looked left and right at the glass door.

And then…

"Nothing at all?"

Several Teletubbies looked over with such ignorant and innocent eyes.

"Well…"

Lin Xinyi covered his face helplessly:

"You don't know how to find the potential fingerprints on the glass?"

"Did you ever sit by the window when you were in school?"

"Just breathe on the glass!"

The gas display method is suitable for objects with a smooth surface with weak water absorption.

This is a survey method that does not require any professional equipment at all, and can be used only with an open mouth.

And every student who has ever sat by the window should have unconsciously used this method—

When I was bored in class, I just spit out the hot air at the window, and those fingerprints and fingerprints that I couldn't see before can clearly show from the glass.

"I see!"

The few police officers suddenly came to a realization, and all of a sudden they came together to prepare to release their breaths.

"Wait...shut up!"

"I'll teach you another method that is easier to operate."

Considering the air pollution that this method may produce, Lin Xin quickly stopped these overzealous students:

"Bring the flashlight here."

"The light is illuminated from the back of the glass at varying angles, and then viewed from the front of the glass."

Without professional multi-band light sources, ordinary white light flashlights are always available.

And Lin Xinyi is now using the transmitted light observation method, which can only be used with an ordinary flashlight.

This method, to put it bluntly, uses light from the back of a transparent object, which is more suitable for investigating potential fingerprints on glass.

By continuously adjusting the angle, direction and brightness of the light source, and adding an appropriate background, the contrast between the handprint and the background can be enhanced, allowing people to observe the handprint that was originally indistinguishable to the naked eye.

"Really, there really is!"

Looking at the blurred handprints that appeared under the light, these forensic police officers with an annual salary of several million yen were amazed like children doing scientific experiments for the first time.

Then, they asked in confusion and worry: