Gu Chen did not continue to write his name, but illuminated the written name with the light of his mobile phone, and then put it on the tip of his nose.

Anyone with a discerning eye knew that Gu Chen was sniffing the smell.

But many people are also dumbfounded, obviously using a pen to write their names, but why do you want to do this?

"What the hell is wrong with this Officer Gu?"

"Could it be that there is a problem with the fountain pen?"

"Smell it? Is there something wrong with this ink?"

"No...... I don't know, let's see. ”

Some guessing customers didn't know what Gu Chen's purpose was for a while, but Lu Weiwei quickly knew Gu Chen's intentions, and then put on white gloves and walked to Gu Chen's side.

"Senior Brother Gu, leave it to me. ”

"Okay, then it's going to trouble Senior Sister Lu. Gu Chen directly handed the pen to Lu Weiwei.

Lu Weiwei expertly unscrewed the cap of the pen, and then squeezed the remaining ink from the pen capsule into an empty wine glass.

Everyone held their breath and quietly watched Lu Weiwei operate.

At this moment, Lisa's whole person was nervous, and her eyes couldn't help but scan the surroundings.

After Lu Weiwei finished the ink extraction operation, she handed the wine glass containing the pen and ink to Forensic Doctor Liu and said, "Forensic Doctor Liu, the rest is up to you." ”

"No problem. Forensic Doctor Liu also smiled, and he quickly understood what Gu Chen meant.

Among the items recovered from Eugene's body, there was no possibility of concealing a strong liquid poison, and among Lisa's belongings, only this pen was more special.

Because the pen pouch of the fountain pen could hold liquid substances, Gu Chen concluded that the strong liquid poison should be hidden in this fountain pen.

Seeing that Forensic Doctor Liu was operating, Lisa was also in a panic, and hurriedly said, "Officer Gu, what do you mean by this?"

"Nothing interesting, routine checks. Gu Chen said.

"You suspect me of hiding venom with a pen?" Lisa was a little impatient, feeling that she was being treated unfairly.

"I didn't say that, please be patient, everything is subject to the test results. Gu Chen replied lightly, but it did not exchange Lisa's understanding.

However, after Lisa also expressed her protest attitude, she suddenly became extremely quiet, as if she wanted to find Gu Chen to vent her emotions, and did not care about the police test.

It didn't take long for Forensic Doctor Liu to quickly come to a conclusion based on the testing of on-site equipment.

"How's it going?" Officer Wang was the first to step forward and ask.

Lu Weiwei and Wu Zhe also widened their eyes.

Forensic Doctor Liu shook his head: "There is no problem, this is a scented ink, in which I did not detect strong liquid poisons." ”

"What...... What? No?" Officer Wang originally thought that the venom was hidden in the pen and pencil bag, but now Forensic Doctor Liu told him that there was no, isn't this a slap in the face?

Gu Chen was also stunned for a moment, it stands to reason that it shouldn't be, but Forensic Liu's detection is still quite authoritative, no is no, there can be no error, after all, he is also a forensic doctor who has worked for many years.

But if the killer is really one of Eugene and Lisa, the venom can't be hidden too far.

"Isn't the venom on them?" Gu Chen couldn't help but look at the card seat just now.

Lu Weiwei immediately understood, and patted Wu Zhe on the shoulder: "Wu Zhe, follow me to the booth to search." ”

"Okay. What else could Wu Zhe say? Directly called his cousin Zhou Xiaodi: "Xiaodi, come together." ”

"Good. Zhou Xiaodi said.

The three of them searched around the booth carefully, but found nothing.

Now everyone is confused, and everyone is staring at each other, as if there is some misunderstanding here?

For example, Eugene and Lisa are not the real murderers.

Lisa was also strongly dissatisfied at the moment, and came directly to Gu Chen's side and said, "Police Gu, may I ask what you found?" Geller is my good partner and friend, how could I harm him?"

"I seriously doubt your ability to handle the case now, and besides, the murderer is probably still in the bar, and you didn't look for the real murderer, but now you are searching us? I don't know what you mean?"

"Yes. Eugene, who was suspicious of each other before, also walked to Lisa's side at this moment, and said apologetically: "Lisa, I blamed you just now, it turns out that you are not the murderer, it is the police who misunderstood us, please forgive me." ”

"Eugene, you're right, it's the police who are wrong. Lisa glared at Gu Chen fiercely, and said directly angrily, "Officer Gu, do you have anything to explain about this?"

Gu Chen still ignored her and continued to keep his own thoughts.

The more problems arose in the investigation, the more Gu Chen needed to remain calm.

"What went wrong? The previous investigation steps were all right?Could it be that I overlooked some details?"

From the booth just now, as well as the objects on several people, Gu Chen reviewed them one by one.

It stands to reason that it is impossible for the murderer to take the venom away after committing the crime, unless there are traces of movement.

At this time, the lights in the hall suddenly turned on.

Previously, due to the long time in the dark, the sudden light made many people squint, and it was difficult to adapt to such a strong light for a while.

However, Gu Chen still kept thinking just now......

"There is no problem with the reasoning, which is determined according to the time of Liu's forensic examination, which means that there is no loophole in the previous reasoning. ”

"And among these items, the only one most likely to hide the venom is the pen, could it be that the inspection was negligent just now?"

Gu Chen turned his head to look at the pen that Lu Weiwei put on the bar, and couldn't help but walk over curiously.

This time, Gu Chen had enough lights to rely on, and he still held a pen to do an inspection.

"Huh, what is this?" Gu Chen was suddenly curious about the position of the pen bag, so he pointed the tip of the pen at another empty wine glass, slowly increasing the force, and squeezed the pen bag.

This time, Gu Chen could see very clearly, the ink under the pen bag was squeezed out of the pen, while the unknown liquid on the upper layer was isolated by a transparent object.

Gu Chen quickly glanced at Lisa out of the corner of his eye, and Lisa seemed to be more nervous than just now, which made Gu Chen believe that this pencil bag was not simple.

Gu Chen used his right index finger and thumb to gently squeeze the isolation zone in the middle of the pencil, and surprisingly found that a small amount of liquid bubbles would emerge from the top of the pencil, and the top seemed to be a special ventilation hole.

So Gu Chen squeezed the position and slowly moved it to the top of the pencil.

This time, the liquid bubbles on the top of the pencil bag bubbled even more, and Lisa's expression was still distorted to the extreme after squeezing a few drops of clear liquid from the top of the pencil bag.

That's right, it's the extreme.

These were all seen by the corner of Gu Chen's eyes.

Although Lisa barely managed to keep her composure, Gu Chen believed that her heart was breaking down at the moment.

Just now, the black light was blinding, and with only the candle and mobile phone lights, it was difficult to find that there was a transparent compartment in the pen bag of the fountain pen, and at the top of the pen bag, there was a ventilation air that needed to be squeezed to ooze liquid.

In this way, Gu Chen believed that the previous reasoning was complete and correct, and there was no mistake.

"That's it. Looking at the few drops of liquid remaining, Gu personally sent the wine glass to Forensic Doctor Liu reluctantly, and said, "Forensic Doctor Liu, you try again." ”

"Good. Seeing Gu Chen's sharp operation, Forensic Doctor Liu was also stunned, and then took the wine glass and tested the few drops of liquid remaining in the wine glass.

Minutes and seconds passed......

It was the same as just now, everyone held their breath, feeling that the atmosphere of the scene was extremely weird.

Everyone didn't dare to disturb the senior forensic doctor's test, so they could only watch him silently, and then wait quietly.

It didn't take long for Forensic Doctor Liu to exhale, turn his head to look at Gu Chen and smile: "That's right, that's it." ”

"Really...... Is it really a strong liquid poison?" Lu Weiwei was afraid that she would be overjoyed, and it would turn out to be empty joy, so she hurriedly asked with confirmation.

"You can't be wrong, it's the same as the strong liquid poison I extracted and detected in the liquor, and this is the poison. Forensic Doctor Liu's reply seemed to give everyone a needle.

Lisa's legs snapped softly, almost knocking over the bottle on the bar.

Gu Chen walked up to her step by step and said lightly: "Miss Lisa, as you wish, we have found the real murderer, are you still satisfied with this result?"

"No...... No. Lisa was completely panicked now, he quickly looked left and right, and then ran to Eugene's side, grabbed Eugene and asked for help: "Eugene, you have to believe me, I didn't do it, it's really not me." ”

"Lisa, but?" Eugene didn't know who to trust at the moment, and suddenly fell into confusion.

But the fact that the police extracted the same venom from Lisa's pen pouch as in Geller's wine glass is undeniable.

But now looking at Lisa's innocent appearance, she doesn't look like a murderer at all.

"This ...... What the hell is going on? Can anyone tell me what I should do?" Eugene was going crazy, holding his head in a circle.

Looking at Geller, who fell to the ground, and Lisa, who was desperately begging for help, Eugene sat on the ground with a snap.

"Eugene. Lisa lay directly on top of him and shook Eugene's body: "Eugene, what's wrong with you? ”

"Needless to say. Gu Chen didn't talk to the two of them, the scene needs to restore order, and the suspect must be brought back to the police station.

Time was running out, Gu Chen directly took out his rose gold handcuffs and said lightly: "You two have to go to the police station for investigation." ”

A few minutes later, both Eugene and Lisa were taken to the car and escorted together to the Seremban precinct.

Other police officers who rushed to support stayed at the scene to deal with the aftermath.

......

......

Seremban Substation, Interrogation Room No. 1.

Lisa looked ahead with her hands handcuffed and her hair a little messy.

And sitting in front of her at this moment are Gu Chen, Lu Weiwei and Officer Wang.

Officer Wang was putting a band-aid on the back of his hand, and told Lu Weiwei from time to time: "Lu Weiwei, you are light, don't you see that the meat is turned over?"

"Didn't you say that your hands are very rough, and you scream when you have a little injury?" Lu Weiwei helped Officer Wang paste it, and then gently pressed her fingers on the back of Officer Wang's hand a few times.

Also a little angry, Officer Wang directly patted the table and said: "Lisa, don't think that if you are a foreigner, I will be polite to you? It is a fact that you are suspected of poisoning Geller, what are you biting me for? I am a policeman, and I have to handle the case according to the law." ”

Lisa didn't speak, still staring blankly ahead.

At the moment when Lisa was taken into the Furong substation, when she got out of the car, she tried to break free and escape, but after being caught by Officer Wang, she insisted on the back of Officer Wang's hand and bit her fiercely.

Gu Chen rechecked the previous transcript of Lisa and asked, "Lisa, Geller and you are also old partners, why did you poison him?"

Lisa remained silent, her gaze glazed over.

Gu Chen also smiled and said: "Don't pretend, there are not ten but nine people like you who pretend to be stupid in the interrogation room, every one of them just came in, and they are the same as you, but evidence is evidence, we found a strong liquid poison in your pen and pencil bag, you have to make it clear." ”

"I'm not a murderer, I don't want to say it. Lisa finally spoke, but her attitude remained tough.

"Isn't it a murderer?" Officer Wang was also angry when he heard this, and directly slapped the table, pointed at Lisa and shouted angrily: "Just when you got out of the car and bit me just now, you are considered an assault on the police, do you know? You still say that you are not a murderer, you belong to a dog, right?"

Lu Weiwei coughed twice with a smile, and said seriously: "Evidence doesn't lie, since my senior brother Gu still found evidence, do you think it's interesting for you to deny it like this?"

Seeing Lisa's attitude of ignoring her, the corners of Lu Weiwei's mouth rose: "Yes, then let me ask you, is that pen yours?"

"That's right. Lisa replied selectively.

Lu Weiwei glanced at Officer Wang beside her, and then asked Lisa, "Then why do you want to store strong liquid poison in your pen pouch?"

"I don't know, I don't know why it's like this in this pen, I usually just use it for writing, and I don't know how this happened. ”

Although Lisa can't give a decent proof of her innocence in the face of evidence, she just denies that she is the murderer.

Gu Chen said directly: "According to our previous reasoning, the time of the crime must be carried out in a very short time, and after the deceased Geller drank the wine containing highly toxic substances, the attack time would basically occur within half a minute. ”

"It can be seen that the only people who can poison you and Eugene are you, but Eugene does not have a pen like you, and your pen at that time was in the inner pocket of your coat, which was found during the search of you. ”

"So, no one could touch your pen at the time, and Eugene couldn't either, and you said it had nothing to do with you. ”

"Yes. Officer Wang took the pocket notebook in the transparent bag and said, "This fountain pen has always been used by you, used to record and write what you have seen and heard here, which you have explained yourself before." ”

"So this fountain pen has always been in your use, and it is useless for you to quibble, and the remnants of the few drops of strong liquid poison that we have extracted from the inner compartment of the pen capsule also show your cleverness. ”

"You used this extremely secret way of concealing to keep the strong liquid poison secret, to be honest, if Gu Chen hadn't been more careful, he might have been fooled by you. ”

Coughing twice, Officer Wang took a sip of the freshly brewed wolfberry tea, and then said: "Since Geller is your good friend and partner, and you are a team, why do you want to harm him?

The scene was surprisingly quiet again.

Lisa remained silent, which made the bitter Officer Wang a little mad.

Gu Chen smiled and said, "Since you don't want to say it, then you can stay here and calm down." ”

Then Gu Chen looked at Officer Wang and Lu Weiwei beside him, and said, "Senior Brother Wang, Senior Sister Lu, let's go eat something, shall we?"

"I agree. Lu Weiwei touched her rumbling stomach and said with some expectation: "The big night actually blocked our police, I need a beef noodle to comfort me." ”

"Wouldn't it be nice to add some dried fish?" asked Officer Wang.

"I think it's more reliable to add some old godmothers. Gu Chen said.

The men walked out of the interrogation room chatting for supper in front of Lisa.

It didn't take long for the three of them to pack three servings of beef noodles from Master Kong in the cafeteria and came to the No. 3 interrogation room together.

Interrogation room 3 is for Eugene, who is also Geller and Lisa's companion, and he has been hanging him here just now, and now everyone comes to him with food, and Eugene seems to be conflicted.

"Don't look at us like that, we didn't bring it for you. Officer Wang calmly put down the beef noodles, then opened the lid, sniffed the fragrant fragrance, and said in surprise: "Well, it's so fragrant." ”

The three of them devoured in front of Eugene without any scruples......

Especially Officer Wang, who smashed his mouth the loudest, causing Eugene to drool.

"Officers, what do you want? I'm not a murderer, but why are you imprisoning me?"

Eugene also saw that he was detained for a long time, and the police didn't ask him the slightest question, but swallowed it in front of him with beef noodles.

This made Eugene very uncomfortable.

Gu Chen wiped his mouth with a napkin, and then opened the transcript and asked him, "Tell me, what the hell is going on with the three of you? Why did Lisa poison Geller?"

"I, I don't know. Eugene bowed his head, refusing to answer.

Gu Chen smiled and said, "You won't not know, because the three of you are partners, you should know each other well, and you have been working together for a long time, if you don't notice the contradiction between the two of them at all, I don't believe it." ”

Eugene looked up at Gu Chen, to be honest, he was a little scared, especially he didn't dare to look directly into Gu Chen's eyes.

Just before in the Qing bar, when Gu Chen used small clues to investigate the murderer Lisa's crime method and the tools of the hidden poison little by little, Eugene was stunned.

Gu Chen's operation is enough to make people unbelievable, the efficiency of a young policeman?

In Eugene's opinion, Gu Chen's eyes seemed to be able to see through everything, especially when investigating.

Gu Chen saw that Eugene's eyes began to dodge, and he couldn't help but say, "Although the murderer is Lisa, you should also be an accomplice, right?"

......