"I ...... I'm going to check the location of Dou Zili's mobile phone now," Zeng Ke said in a panic, "Team leader, you...... You, you, can you call Sister Wu quickly?"

"Oh......" Zhao Yu nodded again and again, reaching out and picking up his phone.

If it hadn't been for Zeng Ke's reminder, he really hadn't thought of this. Yesterday, when he was talking to the little girl selling fish, Dou Zili had watched carefully for a long time beside him.

If the little girl's mother was arrested by Dou Zili, then he probably knew the little girl. Therefore, Dou Zili should have been aware of it.

Now Wu Xiumin is investigating the matter, if he is really targeted by Dou Zili, maybe it is really dangerous.

Listening to Director Wang Chenggang's meaning just now, Dou Zili went to deal with yesterday's wharf fight. However, no one can be sure now, he must be at the Quliang Police Station!

Thinking that Wu Xiumin might be in danger, Zhao Yu was also busy pressing Wu Xiumin's phone number. However, before the phone was connected, Zhao Yu suddenly hung up again.

No......

Wrong......

In an instant, I don't know what Zhao Yu thought of again, he turned off his phone and put it on the table.

"Hey, team leader, 100,000 urgent, what are you waiting for?" Zeng Ke quickly retrieved the location of his mobile phone, and after seeing that Zhao Yu did not call, he suddenly became even more anxious.

"No......" Zhao Yu's eyes froze at one point, as if he stayed on a certain thought, and sank for a few seconds, then he shook his head lightly and said, "Don't worry, Sister Wu is fine!"

"It's okay? Why?" Zeng Ke looked back and asked, "That kind of anesthetic mixture is not something that ordinary people can make, this must have been learned by Dou Zili from the little girl's mother! Obviously, Dou Zili is seriously suspicious! Team leader ......"

"Hmm...... Zeng Ke ah......" Zhao Yu said meaningfully, "Have you noticed that Dou Zili has laid a perfect good game for himself, so how can he break this good game with his own hands?"

"Huh? You say...... What are you talking about?" Zeng Ke grinned in surprise.

"It would be nice if Dou Zili really did something to Wu Xiumin!" Zhao Yu sighed softly, "But, he won't be so stupid! Think about it carefully, even if we know that Dou Zili is the child of the tower keeper couple! Even if the cigarette butts are full of his saliva and fingerprints! Even if, we know that his method of using sedatives was learned from the criminals he caught! But—so what!?"

"What can it be?" Zeng Ke was stunned for a while, and after thinking for a long time, he finally had an epiphany, "What do you mean, even if we suspect him, can't we make him confess?"

"Yes!" Zhao Yu nodded, "Dou Zili is the captain of the criminal police, and he knows all the procedures of criminal offenses very well! So, no matter how suspicious we are, even if it is an interrogation, as long as he grits his teeth, we can't help him!"

"So......" Zeng Ke scratched his head, "So...... We still have to find Guo Yihang!...... Now it seems that the possibility that Guo Yihang is still alive is very small......"

"It's a drop!" Zhao Yu said, "In the vast sea, if Dou Zili hides the corpse and the murder weapon, we won't be able to find it at all!

"This ...... Speaking of which......" Zeng Ke frowned and said, "Dou Zili is now fearless? He is not afraid that we will check his old bottom at all! He just needs to ...... Do nothing, then......" he pondered, "can we try the usual methods, such as alibi...... or something?"

"I think, it's probably useless!" Zhao Yu shook his head, "Such a big game can be done, I'm afraid he has already prepared everything!"

"Grandma is a bear, it's really unbelievable, I didn't expect this sloppy smoker to deceive all of us!"

"Well, this is probably the most bizarre case I've ever seen in my life!" Zeng Ke had already called up the location of Dou Zili's mobile phone as he spoke. According to the location of the mobile phone, Dou Zili was indeed in the Quliang Police Station. It seems that he has only dealt with yesterday's wharf brawl incident, as Director Wang Chenggang said.

"Team leader, since that's the case...... Then we can't do anything about him?" Zeng Ke gritted his teeth and asked, "We should at least search his home, what if we can find something like a sedative?"

"No! Without obtaining absolute evidence and full certainty, we must not startle the snake!" ......Otherwise, Zhao Yu squinted his eyes and said, "We really have no chance!"

As soon as he finished speaking, the clever Zeng Ke immediately heard the taste from Zhao Yu's tone, hurriedly widened his eyes, and asked eagerly: "What, team leader, is it ...... Do you have a way to deal with him?"

"Joke! or else...... How can I be our team leader?" Zhao Yu looked at the computer screen and said coldly, "I don't dare to guarantee other ideas, but when it comes to yin people, Lao Tzu is an expert among experts!"

"Come on, Zeng Ke, next, we're busy! If the real murderer is not Dou Zili, then it's fine, but if it's really him, I will let him - the original form is revealed!!"

......

Once the goal was determined, Zhao Yu and Zeng Ke began to design their plan to solve the case. In the meantime, Zhao Yu called several people in a row, in addition to Wu Xiumin and Ran Tao, there was also the forensic doctor Gao Facai.

These people were the most trustworthy people in Zhao Yu, so he told them the situation without concealment.

Including the high forensic doctor, the reactions of the three of them after hearing it were the same as the previous Zeng Ke, they felt incredible, no one could have imagined that Dou Zili, the captain of the criminal police in charge, would suddenly become a major suspect in the isolated island homicide case!

However, what Zhao Yu said was reasonable and well-founded, and they could not be allowed not to take it seriously.

In the end, Ran Tao assured Zhao Yu that he would rush to Doujiazhuang at a rocket-like speed to investigate Dou Zili's old bottom;

Wu Xiumin is still in charge of finding the immediate family members of the tower keeper couple for DNA comparison;

Gao Facai's forensic doctor also volunteered, saying that he would find a way to get the sedative formula used by the little girl's mother to see if it was consistent with the sedative in the isolated island homicide case?

Zeng Ke, on the other hand, continued to investigate Dou Zili's details to see if there were any new discoveries?

As far as solving the case is concerned, Zhao Yu is already an experienced expert. Experience has taught him that once the detection has a definite target, it will not be so difficult to investigate!

Sure enough, as Zhao Yu expected, when they shifted their attention to Dou Zili, they quickly found more clues.

The first to come back with the news was Gao Facai Forensic Medicine. Through forensic testing, he has confirmed that the formulations of the two sedatives are completely identical.

What's even more amazing is that not only the formula is the same, but even the ratio is exactly the same. In other words, the sedative used by the murderer in the island murder is the same as the sedative used by the mother of the little fish girl to steal!

Gao Facai said that the sedative formula used to flow through hospitals, but because of its low stability, it was quickly phased out. If there are still people using it now, it must be prepared by hand, and in the case of manual preparation, it can almost be determined that the two are the same batch.

In addition, the high forensic doctor had previously examined the drug residues in the body of the deceased in the Gudao case, and suspected that the sedative used by the murderer in the Gudao case showed signs of expiration.

Therefore, they have reason to suspect Dou Zili's head. It is likely that when Dou Zili arrested the little girl's mother, he took the sheep and got the sedative she had prepared. Then, he directly used that batch of sedatives to stun the crew on Yongjin Island!

However, the sedative alone is obviously not enough, they can only prove that the sedative came from the hand of an arrested thief, but they cannot prove that Dou Zili gave the victim the medicine.

Therefore, in order to really let Dou Zili reveal his true form, they still lack something more important......