Coroner Coroner

But Lin Xinyi didn't seem to see it at all.

He no longer explained much or observed the corpse. Instead, like a detective, he began to carefully observe the environment at the scene.

"Oh...it seems that I really have to come this time."

Kudo Shinichi sighed softly:

He stood in this room for a few minutes, already seeing through the murderer's modus operandi:

The door of this room is locked, there is no window, only a balcony.

So the murderer could only have come in from the balcony.

And his way to get to the balcony is also very simple. It is nothing more than climbing out of the window of another room, stepping on the narrow eaves that protrude outwards on the outside of the wall, and moving closer to this room little by little.

Finally, the murderer was tied with the rope used to return after committing the crime, and jumped directly from the narrow eaves of the outer wall 2 meters away to the balcony of this room.

This method is not delicate at all, and it is very easy to see through.

And its only effect is to create a mindset that "the murderer must be an able-bodied person who can climb walls and jump long distances".

In this way, the police will only investigate those suspects who are young, strong, and healthy, while ignoring the older, "legs and feet injured" Zunde Seyu.

"It's a good way..."

"It's a pity that your luck is not very good."

Kudo Shinichi smiled slightly, and was about to stand up directly to reveal the mystery.

Anyway, Lin Xinyi's performance this time was extremely bad. Although he knew the answer in advance and was a little out of luck, he must have won.

But at this moment... Lin Xinyi suddenly had a new movement:

"Then, what about the forensics class, the person in charge of on-site investigation?"

"This, this!"

Immediately, several young police officers surrounded him.

Although Lin Xinyi's performance this time was disappointing, he is still very likely to become the leader of the forensics class in the future.

Therefore, the police officers of these forensics classes all spoke very politely:

"We are all forensics classes, from the on-site investigation department."

"Mr. Lin Xinyi, do you have any orders?"

Although Lin Xinyi did not perform well this time, he might become a future leader, so the police officers in the forensics class were still very polite to him.

"Did you find any handprints and footprints at the scene?"

"The movement of shooting and killing is not small, and the murderer must leave before others follow the sound."

"He must not have time to clean up the scene, and he should leave some fingerprints and footprints on the scene."

Lin Xinyi calmly stated his own solution to the case.

Hearing what he said, Mr. Seyu who was in a wheelchair immediately laughed out loud in his heart:

Hahahaha...Isn't the donkey poor?

He wore gloves when he committed the crime, leaving no fingerprints and palm prints at all, not even handprints.

The floor of the room is also a flat and hard floor, and there will be no footprints when you step on it.

Do you want to use such a stupid method that the police would use to catch him Zunde Seyu?too naive!

And the fact is just as Seyu Zunde expected:

"Neither handprints nor footprints were found."

"I found a few fingerprints, but I can't be sure that they belong to the murderer."

"Right, speaking of this..."

The police officers in the forensics class thought for a while, and then questioned and asked:

"Mr. Lin Xinyi, is it useless to find these things?"

"We asked, this is a guest room. Although it has been a long time since no guests have come to stay, servants come here to clean it every day."

"Even if you can find handprints, footprints, etc., there is no way to confirm whether they belong to the murderer or the servants?"

"..." Lin Xinyi frowned slightly.

Hearing this, he knew that the level of these forensic officers was indeed limited.

I only know how to bury my head and look for traces, but I don't know how to restore the crime scene from the facts of the case.

"Actually, it can be distinguished."

"First of all, can you ask, do the servants here wear gloves when cleaning?"

Lin Xinyi asked this question.

The servant who was waiting on the side immediately responded with great cooperation:

"No, we only wear gloves when cleaning the bathroom."

"That's fine."

Lin Xinyi said with a relaxed expression:

"Assuming the killer is among the suspects who are under control:"

"Since he was not tested for a reaction to gunpowder smoke, it means that he must have been wearing gloves when he committed the crime."

"And the servants here don't wear gloves when cleaning the guest room."

"In this way, we only need to find the handprint without the palm print, and we can basically confirm that it is the trace left by the murderer."

"As for the footprints..."

Lin Xinyi paused slightly and pointed to the balcony outside:

"This is a 'secret room', the murderer can only climb in from the balcony and leave from the balcony."

"When he leaves, he is likely to step on the balcony wall first, or step on the balcony's handrail, and climb over the balcony to return."

"And the cleaning maids don't step on walls and handrails."

"If we can extract footprints on the walls of the balcony and on the handrails of the guard rails, it's probably the killer's."

A forensic doctor must not only study corpses, but also understand traces, analyze the scene, restore the case, and understand the profile of the perpetrator.

An old forensic doctor with enough practical experience can almost be said to be the king of criminal investigation.

So even if nothing was found on the corpse, Lin Xinyi was still able to reason about the process of the crime in a decent manner.

"I see…"

The police officers in the forensics class all showed a sudden realization.

However, in the next second, they poured a basin of cold water on Lin Xinyi:

"But, we've also seen it on the balcony..."

"There are indeed no handprints and footprints there!"

Lin Xinyi: "..."

He had already smelled something bad.

This kind of feeling, as if the assistant encountered during the autopsy was Komatsu Patrol...

"That..." Lin Xinyi asked tentatively, "What method did you use to find fingerprints and footprints?"

"How? Several young police officers looked at each other suspiciously: "There is no way... just use your eyes to see. "

"Just look at it with the naked eye?"

"You've always seen with your eyes only?"

Lin Xinyi's expression suddenly became extremely exciting.

"Yeah, what else?" the police officers answered rightly.

"What about blue light, purple light, and multi-band light sources?"

Blue light is used to find sweat fingerprints, purple light is used to find mineral oil fingerprints, and multi-band light sources are more versatile. They can find oily and sweaty fingerprints that are difficult to distinguish with the naked eye on various smooth objects such as paper, wall covering, and imitations. .

Although these devices should not be used in this case, Lin Xinyi asked first.

Because these are the most used and most basic equipment in on-site investigation.

However, the response of the police officers from the on-site investigation department of the forensic class was: "None of these..."

"..." Lin Xin was silent for a while, then asked again:

"What about thiocyanate and potassium thiocyanate?"

"What about the alizarin ethanol solution?"

These three are common chemicals used to reveal potential dust fingerprints.

"Ninhydrin solution, silver nitrate solution, is there any?"

These two are common chemicals used to reveal latent sweat fingerprints.

And this time, the young police officers responded:

"????"

They simply hadn't heard of these tongue-in-cheek chemical terms.

"never mind…"

"502 glue, this should be there, right?"

The 502 glue visualization method is suitable for the visualization of potential sweat fingerprints on almost all non-permeable bodies.

Lin Xinyi doesn't even want to investigate the case now, he just wants to see how much the basic investigation equipment for this forensics class is lacking.

"502 glue?"

Sure enough, these young police officers were stunned:

"Is this also related to the on-site investigation work?"