MTL - Conan’s World Stand-in-Chapter 31 half fingerprint

"Hey, don't move, there are important fingerprints on this painting."

Guan Dounan stretched out his hand to touch the frame of this oil painting, but was stopped by a police officer from the forensics department next to him, and his words were a little bad.

"Fingerprints? Can fingerprints be detected on such oil paintings?"

This painting is not a cheap thing printed with ink. It is not mounted with glass. Guan Dounan can even see the delicate brush marks on the painting. Even if it is not an authentic product, it is an "imitation", not a "replica", that the artist drew little by little with his hands and a pen and paid labor.

"There is a special method for extracting fingerprints from this oil painting, but this time the fingerprints are not on the 'painting'." The police officer pointed to the corner below the picture frame, "Here, there are half fingerprints, and they are still Mr. Yu's."

"Isn't there evidence?" Guan Dounan questioned.

"So you laymen... Although they are fingerprints, unfortunately, they are old fingerprints, not fresh, so they cannot be used as evidence in this case, and the shape is a bit strange." The forensic police officer shook his head. Said with regret.

"Can you tell me in detail? I... uh, I'm a rookie actor, and I'm going to participate in a TV series about criminal investigation. I'm a little curious about this."

"Ha, I guessed you were an actor when I saw your face. Last time my colleague showed us a photo of you, but I heard that his daughter is already obsessed with you. The next time is to join the high school detective to gain on-the-spot experience, right? I heard that the high school detective's mother used to be a famous actress, so it's not easy for you to seize this opportunity."

The forensic police officer seemed to be very confident in his guess, not only "guessing" Guan Dounan's occupation, but also adding a background setting to him very intimately.

Then what should I say, thank the uncle who took my picture at the beginning? But when you look at a photo and get hooked on something...you must be joking. Guan Dounan tried his best to suppress the twitching of the corners of his mouth and put on a business smile.

"Well..., based on your professional attitude that you can go to the crime scene to gain experience, I will tell you about the knowledge of fingerprint extraction. We generally use four methods to extract fingerprints, namely the iodine vapor method. , silver nitrate solution method, organic chromogenic solution method and laser detection method that we cannot do for the time being…”

"This fingerprint is extracted by the silver nitrate solution method, so it will turn black. This one is an old fingerprint. Although the exact time cannot be judged for the time being, the residual effect of moisture, oily components and protein can be seen at least. It's been a few days." The police officer pointed to the somewhat concealed black fingerprint on the frame, "In addition, this fingerprint is only half of the frame, but not on the painting itself. I left it unintentionally when there was no frame."

"Is that so? However, don't you usually wipe off your fingerprints when cleaning and wiping?" Guan Dounan said.

"It may be because the fingerprints are relatively inward, and the painting itself is not protected by glass, so even the cleaning staff who came to wipe it just wiped the outer edge." He gave such a guess, "Don't look at fingerprints, which are usually invisible, but sometimes unexpectedly lasting, and fingerprints from several years ago can sometimes be detected."

"That's it..." Guan Dounan took a closer look at the frame of the painting. It was gradually thickening from the inside to the outside. The half of the fingerprint was on the innermost level. It was "reasonable" to say that it was not rubbed. of.

Hmm... that makes perfect sense.

"But..." The forensic police officer seemed hesitant to say anything. "The orientation of this half of the fingerprint is a little wrong. You see, there is only half of the fingerprint of the **** of the right hand, but the direction of the fingertip is downward."

"It's really down... does that mean?" Guan Dounan couldn't understand the police officer's meaning for a while.

"That is, if I want to leave the same fingerprint on the frame with my finger now, the most convenient way is to reach for the top piece of the frame with my fingertips, and then turn the frame upside down." The police officer made a touch-up motion, so that half of his middle fingertips would stay on the frame, "or he could stretch his hand from the back to the front. However, since it was left when the frame was not mounted. It is not surprising to leave fingerprints anywhere."

"Touch the front from the back..." The forensic police officer said it unintentionally, but Guan Dounan listened intently. If it is normal, the inferences he makes are naturally fine, but this is a world that is not very normal and has superpowers.

By identifying what the police officer said just now, Guan Dounan's first ability to think of is to pass through walls.

To truly realize the physical "touching forward from the back of the picture frame", you can leave half a fingertip forward fingerprint on the picture frame. And with such an ability, with a little preparation, he can easily do a perfect crime without leaving any footprints.

Although in the original work of "Jojo's Bizarre Adventure", the stand-in seems to have the ability to pass through the wall at will, but sometimes it will be hit against the wall... After all, sometimes it is the performance effect that the plot needs to make, and it can't be taken seriously.

Besides, something like "fingerprints" is not something that a stand-in should have, unless his stand-in ability is to control fingerprints... Well, it's not impossible. Just like his initial performance alone, it's hard to guess whether his stand-in ability is time-stop or stair control.

It is difficult for people to imagine things beyond their own cognitive range. For example, it is difficult for you to imagine a color that you have never seen before. Another example is what Lu Xun once said should be "swipe and write freely", but in the end it is just " Three eyes, long neck" ghost image.

Without using the ability of [Reflection], Guan Dounan could only guess to this extent.

"By the way, there shouldn't be a secret passage behind this picture frame, right? Isn't there a setting like a secret passage suddenly pops up after opening the picture frame in those TV series?"

"Haha, it's really an actor. Most of the things you usually watch are displayed for the effect of the plot." The forensic police officer reached out and knocked on the wall, "It's a solid wall, and it's very narrow, it's impossible. Someone built a secret passage from inside or something."

"That's it... Thank you for your explanation. I'll go to another place to have a look. I won't disturb your work."

After saying hello to the forensic police officer who was a little bit keen on gossip and brain supplements, Guan Dounan walked out of the room and walked to the next door, which was the guest room on the back of "Sunflower".

Compared with the heavily guarded crime scene, the guest room next door was not blocked, but it was also investigated by the police officers, and the door was not locked. The decoration and furnishings in this room are basically the same as those next door. There is also a painting hanging in the room, but it is not Van Gogh's "Sunflower", but a Japanese-style ukiyo-e that Guan Dounan has never seen before.

"The hanging position is on the wall to the right of the entrance... The wall on the back of "Sunflower" should be this position." Guan Dounan glanced at the painting a few times, but did not see anything special, so he focused on the wall that may have been penetrated.

I reached out and touched it, put my ear on it and listened, bent my finger and tapped it, and pressed it hard again. I didn't feel anything special except that the decoration materials were very high-grade and the walls were strong. Indeed, as the police officer said, it doesn't look like there is a secret passage.

"It doesn't seem to be the ability to alienate walls... It should not be hollow in the sound, there is no secret passage or the like. Is it directly through the wall, or is there any other ability that can do the same thing?"

Guan Dounan walked around in several adjacent guest rooms to have a look. The police officers at the scene probably heard the conversation between him and the forensic police officer before, so they did not stop him. Of course, there is no preferential treatment.

After a circle of investigation, Guan Dounan casually leaned on the window sill on the side of the corridor, raised his chin with his thumb up, and began to think.

"First of all, I will try my best to help solve the case as far as I can~www.novelbuddy.com~ This point must be determined first. On the one hand, it is to accumulate experience in fighting against substitute messengers, and on the other hand, it also helps With the help of Kudo Shinichi…”

"If Sewa's ability is really to pass through walls or something, it's not too strong, but it's very suitable for 'performance', and the visual shock is very strong. Maybe this can be used to convince Kudo Shinichi..."

"However, it's hard to say that his ability must be able to pass through walls... According to Kudo Shinichi's thinking, Sewa's alibi is based on the fact that he was located in a bathroom that was quite far away and had no other exit at the time of the crime. This fact. Although it looks very similar to the case that happened to Guan Dounan, there are differences between the two."

"Sancheng Masato's alibi has enough witnesses to prove it, and he has no hidden intentions, and he doesn't need to do anything to activate his abilities. But Seyu needs to be in a closed place where others can't see it. In the space. This at least shows that his ability is not convenient to use in front of people, and it should not be the ability to transcend the time limit... At least on the surface, it is an ability that can achieve an 'indirect' effect in space."

"There were no footprints or fingerprints left at the scene. On the one hand, it may be that Seba does not need the action of 'entry and exit' at all, and on the other hand, he has the ability to control fingerprints or footprints. In view of the 'space just made' 'Inference of ability, the difference between these two abilities is really big, and the possibility of having two abilities at the same time is not big. Judging from the position of the sword on Mr. Yamazaki's body, Seba's ability should still be shown as 'appearing in He stabbed in the back'."

"If there's something behind Mr. Yamazaki, it's that somewhat abrupt oil painting of "Sunflower"... Did this painting really appear there because of a coincidence?"