I am a super cop

Chapter 854 Only That One Is A Wig
After leaving the warehouse, Gu Chen rushed to the technical department of the Municipal Bureau with the items found in the forest in the back mountain, and handed over all the items to Forensic Doctor Liu for testing, and took fingerprints and blood samples from Liu Xingyun.

Afterwards, everyone took Liu Xingyun back to the Furong Sub-bureau and came to the No. [-] interrogation room.

Officer Wang and Lu Weiwei interrogated him, while Gu Chen stayed outside.

Gu Chen is very clear that before there is any definite evidence, it would be impossible for this old fritter to confess his guilt.

It is almost impossible for him to tell Zhang Hui's whereabouts.

The reason Lu Weiwei and Officer Wang were asked to interrogate him continuously was to put pressure on Liu Xingyun.

No matter how hard Liu Xingyun can carry it, no matter how stubborn his mouth is, he will sometimes get tired.

Disguising oneself is a hard job, but for Liu Xingyun, who has played various roles, he has the characteristics of a liar.

Perhaps the disguise of a fake monk is deeply rooted in the bone marrow. If you pretend to be a lot, you will think that you are a real monk.

Gu Chen was lying outside enjoying the cool breeze, while Police Officer Wang and Lu Weiwei continued to show off their talkative features and put all kinds of pressure on Liu Xingyun.

Let Liu Xingyun, who appears to be strong on the surface, constantly mobilize his thoughts.

At first Liu Xingyun was still able to communicate with everyone, until he was almost annoyed by Police Officer Wang and Lu Weiwei's questions, so he just kept silent.

But this is not difficult for Lu Weiwei. Lu Weiwei gave full play to her teasing features and began to teach Liu Xingyun various methods.

At this moment, Gu Chen outside received a call from Forensic Doctor Liu, so he quickly pressed the answer button.

"Forensic Liu, how is your test going?"

"There are already results. I can tell you right now that the imprint you provided matches Liu Xingyun's thumb."

"Great, this is what I want." Gu Chen snapped his fingers, and then hurriedly thanked, "Thank you Fayi Liu, your news is really timely."

"But Gu Chen, I want to explain the details to you." Afraid that Gu Chen might not be very clear, Liu Fayi continued to explain:
"This imprint is Liu Xingyun's thumb, which is left by the blood on the pillow. The imprint belongs to Liu Xingyun, but the blood is not."

"I understand." Of course Gu Chen understood that the blood could not belong to Liu Xingyun at all, but Liu Xingyun's thumbprint was left behind, which is enough to explain the problem.

After receiving these replies, Gu Chen asked again: "Forensic Doctor Liu, apart from these test results, have you found anything else?"

There was a brief pause on the other end of the phone for a few seconds before Forensic Liu said, "For the time being, I will tell you the test results you need most. As for other results, we will continue to follow up."

"Okay, then keep in touch at any time."

After exchanging pleasantries with each other, Gu Chen and Liu Fayi hung up the phone.

With these clues, Gu Chen had a new breakthrough in interrogating Liu Xingyun.

And half an hour ago, Gu Chen also sent the pillow found in the woods to Zhang Hui's younger brother Zhang Fan through pictures.

And Zhang Fan also confirmed the evidence on his mobile phone. The pillow Gu Chen found in the woods was indeed the missing item in his sister's room.

In order to confirm, Zhang Fan even sent Gu Chen another pillow of the same style that came with his sister's room in the form of a picture.

Once the two pieces of evidence were combined, Gu Chen felt that it was not a big problem for Liu Xingyun to confess, so he opened the door and walked into the interrogation room.

At this moment, Lu Weiwei and Police Officer Wang were already parched from interrogation.

Compare wheel tactics.

Obviously, it was Gu Chen's turn to play now.

Against this obviously tired Liu Xingyun.

"Liu Xingyun." Sitting on his seat, Gu Chen raised his head and asked him, "Did you take Zhang Hui to the woods?"

"I have taken Zhang Hui to many places." Liu Xingyun's answer was very cunning.

This seems to be a one-size-fits-all response.

Gu Chen didn't talk nonsense with him, and directly stated the test information informed by Forensic Liu:
"Let me tell you Liu Xingyun, we have found traces on the bloody pillow, and the imprint on the blood is the fingerprint of your thumb."

"Thumbprint?" Hearing Gu Chen's words, Lu Weiwei breathed a sigh of relief.

Xin said that there is finally evidence.

However, Lu Weiwei was still too young.

When Liu Xingyun heard the result, he was calm.

Gu Chen continued: "And the pillow found on the back mountain happened to be the pillow in Zhang Hui's room, so what do you say?"

The scene suddenly fell silent...

Liu Xingyun was stunned for a moment, lowered his head and hesitated, as if he was thinking of a way out.

But after a while, Liu Xingyun said directly: "That's right, I went to the woods with Zhang Hui before, and we even often wandered around in other places."

"But what does this mean? We were just walking in the woods that day, because we often counted the stars together at night, so we often set up tents outdoors. Maybe that pillow was brought by Zhang Hui? I don't remember too much. .”

"Then what happened to the blood on the pillow?" Gu Chen asked again.

"Who knows?" Liu Xingyun shrugged and said, "I took Zhang Hui to set up a tent outdoors for the last time that day. I originally wanted to spend the night here with her, but I drank some wine and took a nap, and then opened the tent again." In an instant, Zhang Hui disappeared."

Patting himself on the head, Liu Xingyun said again: "That night my head was dizzy, and when I woke up, I didn't remember anything."

"Then what happened next?" Gu Chen asked.

"Later? Later... I walked through the woods again, preparing to go back to the warehouse, but found a missing pillow with blood on it."

"But I didn't know whose pillow belonged to it at the time? Why was it here? And it was covered with blood, so I picked it up out of curiosity."

"So... I don't know how this fingerprint was imprinted on the bloody pillow in a daze."

"Then why did you pick up the pillow and then throw it away? If you found this situation at this time, you should know that it might be human blood." Lu Weiwei said.

Liu Xingyun nodded silently: "I also know that it may be human blood, but I'm afraid, I'm afraid I can't explain the matter with Zhang Hui clearly, I was still a monk at the time, I didn't dare to call the police at all, so I can only Throw the pillow aside as if nothing happened."

Glancing at Gu Chen in front of him, Liu Xingyun said weakly: "Comrade policeman, I really don't know if this is something left by Zhang Hui."

"It felt strange at the time, so I picked it up and had a look."

"But seeing too much blood on the pillow, I immediately threw the pillow away and then left, so the fingerprints were left on the pillow."

Looking at everyone, Liu Xingyun covered his face and cried bitterly: "Why am I so unlucky?"

Officer Wang glanced at Gu Chen and shook his head.

In this case, it is really impossible to conclude that the murderer must be Liu Xingyun.

Because what he said is indeed possible.

But the probability of this is very small...

Although Liu Xingyun was known to be a fraud, but because there were no witnesses, in theory, Liu Xingyun's statement could be justified.

According to these clues, Gu Chen, Police Officer Wang and Lu Weiwei did not get any definite results from Liu Xingyun.

But Gu Chen can be sure that the possibility of Zhang Hui surviving is getting lower and lower, and the murderer must have something to do with Liu Xingyun.

After temporarily taking Liu Xingyun into custody, Gu Chen, Police Officer Wang and Lu Weiwei returned to the Office of the Criminal Investigation Team [-].

Gu Chen walked back to his seat, the first thing he did was to pick up the water glass on the table and pour it down in one gulp.

"What should I do? This Liu Xingyun is really too cunning." Lu Weiwei was so angry that she threw the document on the table and sat back on the chair angrily.

Seeing that Gu Chen was unmoved, Lu Weiwei turned to him and asked, "Junior Brother Gu, is this how you let him get away with it?"

"Of course not." Gu Chen leaned back and said, "From the current clues, it can be seen that Zhang Hui was probably killed by Liu Xingyun, at least on the night she disappeared."

"But what's the use of knowing this?" Police Officer Wang spread his hands and sighed helplessly, "There are indeed Liu Xingyun's fingerprints on the blood on the pillow."

"But Liu Xingyun's way of defending himself is also theoretically tenable, although we all know that it's all nonsense."

"But there is no strong evidence and no witnesses. It is really difficult to prove it, at least for now."

"Evidence? What evidence is there?" Yuan Shasha, who was sitting in the back row of Gu Chen, couldn't help complaining.

At this moment, Gu Chen opened the drawer, took a small transparent evidence collection bag in his hand, and began to observe casually.

Lu Weiwei was taken aback, and quickly asked Gu Chen, "Junior Brother Gu, what are you holding in your hand?"

"A woman's long hair." Gu Chen said casually.

"Woman's long hair?" Lu Weiwei was taken aback for a moment, and asked a little puzzled, "Where did you find it?"

Gu Chen raised his head and said, "Where else could it be? Of course it's on the bloody pillow."

"That should belong to Zhang Hui, right?" Officer Wang said.

Gu Chen nodded slightly: "Maybe, but Zhang Hui's body has not been found yet, and what I need now is a known sample of Zhang Hui's hair in order to understand her hair characteristics."

Thinking of this, Gu Chen looked around and said, "It seems that I haven't started examining the hair evidence in this case. Should I change my identity now? Be a hair inspector?"

"But...Senior Brother Gu, Zhang Hui's body has not been found so far, so you can't test Zhang Hui's hair?"

Yuan Shasha's reminder made Gu Chen's eyes light up.

"That's right, without Zhang Hui's body, how can I extract Zhang Hui's own hair? Maybe the hair on the pillow is not necessarily Zhang Hui's."

"That's right." Lu Weiwei nodded silently, and said in agreement, "If Zhang Hui's body has not been found, it cannot be concluded that the hair on the bloody pillow belongs to Zhang Hui."

Seeing Gu Chen staring at her forehead at this moment, Lu Weiwei was a little embarrassed, and quickly asked Gu Chen: "You... what are you looking at?"

"I'm thinking... how can I extract the client's hair without touching the client?"

"That can only be done when the client is getting a haircut..." Yuan Shasha thought for a while, and then quickly corrected: "That's not right, the hair that falls out after a haircut doesn't have hair roots, so it can't be detected at all."

Hearing Yuan Shasha's remarks, Gu Chen suddenly snapped his fingers: "I know how to extract it."

"You know?" Seeing Gu Chen's confident look, Police Officer Wang quickly asked him, "Gu Chen, tell me, how can you take the hair of the client without contacting him?"

"It's very simple. We can start with the comb Zhang Hui usually uses to comb his hair."

Seeing everyone stunned, Gu Chen hurriedly gestured with both hands: "Comb, comb, the comb may be able to extract the client's hair."

"That's right, why didn't I think of it?" Hearing Gu Chen's words, Lu Weiwei suddenly realized: "When I comb my hair with a comb, some hairs will come off, how could I forget about this?"

"So..." Officer Wang said.

"So we should go to Zhang Hui's house now, collect Zhang Hui's hair, and compare it with the hair I found on the blood pillow in the woods to see if it belongs to Zhang Hui."

"Then what are you waiting for?" Officer Wang was already tired from the battle of wits with Liu Xingyun.

As long as there is a clue that Liu Xingyun can be brought to justice, Police Officer Wang will never tire of it.

Just do it.

Gu Chen stood up straight away, beckoning to several people, "Go, go now."

……

……

Drive to the door of Zhang Hui's house.

At this moment, Zhang Fan, who was on summer vacation, seemed unhappy.

The disappearance of his sister Zhang Hui made Zhang Fan extremely frightened and even regretted.

If I had been able to call and confirm in time when I received the message from my sister Zhang Hui, I might have found something tricky.

But some are just if.

"Tuk Tuk Tuk."

Just as Zhang Fan was lying on the sofa in the living room drinking wine, there was a knock on the door.

"Who is it?" Zhang Fan yelled helplessly.

"I'm Gu Chen from the third criminal investigation team of the Furong Branch." Gu Chen said outside the door.

Hearing that it was Gu Chen's voice, Zhang Fan was taken aback for a moment, but soon sat up, and then quickly ran to the door with bare feet, and opened the door directly.

"Officer Gu, why are you?"

"We need to take a hair sample from your sister Zhang Hui." Gu Chen directly explained the reason.

Zhang Fan scratched the back of his head, puzzled and said, "Get my sister's hair sample? But my sister doesn't even know where it is, so how do you get it?"

Lu Weiwei next to Gu Chen smiled and said: "You are stupid, extract it from the comb, don't tell me, your sister doesn't even have a comb for separate use?"

Zhang Fan slapped his head: "That's right, how could I forget about this, my sister is more than just a comb? She has several."

"Where are they all?" Gu Chen asked. "

"There are bathrooms and rooms. I'll get them for you right away." After Zhang Fan finished speaking, he walked towards the bathroom.

Not long after, he took out a log comb and said, "My sister Zhang Hui usually uses this special comb, and there is indeed my sister's hair left on it. Is this okay?"

"Yes." Gu Chen put on white gloves, put the round wooden comb directly into a transparent forensic bag, and then said with a smile: "No one else has used this comb, right?"

"No, it's usually my sister who uses it, and we each use it in our own way, so there is no conflict." Zhang Fan is also very sure.

Gu Chen nodded slightly: "That's good, now we have to take it to the Technical Division of the Municipal Bureau for testing."

"Okay, but please find my sister quickly." Zhang Fan felt a little frustrated.

I feel that my life is a mess without my sister at home.

Gu Chen patted him on the shoulder and encouraged him: "Please trust our police, we will help you find your sister."

……

……

With the comb he found from Zhang Hui's house, Gu Chen didn't go anywhere else, but went directly to the Technical Section of the Municipal Bureau.

In the testing room of the technical department, Gu Chen took out the long hair that was entangled with combs on the platform with his own hands, not letting go of every single strand.

Gu Chen didn't even think that the hair on Zhang Hui's comb could be used as a test sample.

After removing the hair stuck between the teeth of the comb, Gu Chen put the hair under the stereoscope to watch, which allowed Gu Chen to see the general shape and color of the hair.

Is the hair sample straight or curly?Is it slightly wavy?Is the hair texture rough?

Because Gu Chen has to record the above properties of each of the hairs.

Gu Chen extracted a total of about 50 hairs from the comb.

The next step for Gu Chen to do is to put each hair on a microscope slide.

The purpose of doing this is to keep the hair in a stable environment, so that when Gu Chen puts the hair under the contrast microscope, the hair can remain still.

Then Gu Chen can put these slides under a microscope to observe their internal features.

Through these observations, is there any large color spots in Zhang Hui's hair?

What are the shapes of these color classes?
Are they dense?

Is it distributed throughout the hair?

Gu Chen began to record these situations according to his own requirements.

And what kind of spots are there in Zhang Hui's hair, how often these spots appear in the hair, etc. These are the focus of Gu Chen's investigation, and then he will observe another hair.

And the same thing, Gu Chen noticed this feature in this hair, and put it under a microscope on another glass slide, and observed the same phenomenon.

"Zhang Hui's hair still has quite stable features, which is good." Gu Chen took a deep breath, and then began to put another slide on it.

But at this moment, Gu Chen suddenly stopped, and narrowed his eyes slightly: "My God! What's going on?"

"What's the matter?" Police Officer Wang, who was standing on the sidelines, asked.

Gu Chen didn't answer right away, but continued to adjust the instrument.

The subsequent expression was equally surprised.

"Anything... anything special?" Lu Weiwei was afraid of disturbing Gu Chen, so she could only ask him in a low tone.

Gu Chen looked away, sat up straight, and then explained to everyone: "Guess what I found? A wig fiber."

"Wig fiber?" Everyone was almost in unison.

"How come there are wig fibers? Isn't it all extracted from Zhang Hui's special comb?" Lu Weiwei expressed her incomprehension.

Gu Chen froze for a moment, then said with a light smile, "Don't panic, I'll draw conclusions after I finish the test."

Afterwards, Gu Chen immersed himself in testing again.

It wasn't until Gu Chen extracted all the hairs on the comb and tested all the hairs one by one that he had a definite answer.

Gu Chen turned his head to look at everyone, and said involuntarily: "I checked every hair in it, and indeed only that one is a wig."

……

(End of this chapter)