The air in the courtyard was unconsciously depressed, mainly because Cao Qin's eyes exuded a touch of anger.

Ever since Cao Qin became the captain of the Tool Criminal Police Team of Yangbai County Public Security Bureau, she has always solved every case, and her reputation for being resolute and resolute has long spread to Dongyan City.

In all these cases, large and small, no one had ever ignored her so much. Even though the person in front of her was an expert from the special case team and a master in the words of Wang Yu, a well-known criminal psychology professor, Cao Qin still felt that she was offended.

"No!" After a minute of stalemate, Cao Qin finally spoke, "After I learned about the human traffickers, I also thought of this possibility. I checked specifically and found that there was indeed no such thing."

"Ten years ago, I remember that human traffickers were still rampant in Dongyan City, right?" Sun Yu had been in a state of thinking and had not noticed Cao Qin's emotional change just now.

"I have also checked this." Cao Qin said, "There were indeed several gangs of human traffickers in Yangbai County at that time. Neither the family members of the missing persons nor the wanted traffickers could be the murderers.

Of course, we still don’t know the identities of some human traffickers back then, and I can’t identify these people.”

Sun Yu gave Cao Qin a thumbs up. He had never thought that Cao Qin could think so comprehensively, "She is indeed the goddess detective of Yangbai County!"

Cao Qin had no intention of accepting Sun Yu's praise, and obviously still resented Sun Yu for not answering her question just now.

Xia Lan's eyes jumped back and forth between Sun Yu and Cao Qin, and she secretly admired Cao Qin's grasp of details.

The conversation between Sun Yu and Cao Qin was very disconnected. Neither of them mentioned why they wanted to investigate the relevant information about human traffickers, but they came to the same conclusion.

When the clue of human traffickers is introduced into the case, the possibilities of the case become many.

This may be the murder of a trafficker after being exposed during arrest, it may be a form of revenge on society by the family who was harmed by the trafficker, or it may be a manifestation of the abnormal psychology of the family members of the trafficker.

"That's wrong!" Sun Yu growled, "You shouldn't check ten years ago, you should check an earlier time."

Cao Qin pointed to a room and said, "Many old files cannot be entered into the system. If you want to check them, you can check them yourself."

Perhaps Cao Qin felt that her tone was a bit unkind, and perhaps Cao Qin felt Xia Lan's dissatisfied eyes, so she explained, "I understand what you mean, you are checking for information related to human traffickers from earlier times, including the victim's family and

Family of suspected human traffickers.

This workload is too much, and I don’t think these things will help the case. Instead of spending time in the archives, I would rather lead people to the streets to check for outsiders."

After that, Cao Qin got up and walked to the office. Sun Yu also walked to the archives room at the moment Cao Qin got up.

Xia Lan looked left and right, and finally followed Cao Qin into the big office, pulling her into the small office separated by glass.

Cao Qin's subordinates knew their sister Qin very well. The first time Cao Qin stepped into the office, everyone saw the irritability on her face.

Everyone knows that Cao Qin rarely brings emotions into work, so who could make Captain Cao angry?

Later, everyone saw Xia Lan from the special case team dragging Cao Qin to the small office, but Sun Yu did not appear. The smarter people immediately guessed that Captain Cao's anger should be related to Sun Yu.

Through the transparent glass wall, everyone could not hear clearly the conversation inside and could only observe the words and expressions.

I originally thought that Xia Lan went to Captain Cao to apologize, but judging from Xia Lan's attitude, she had no intention of apologizing.

On the other hand, their Captain Cao, as Xia Lan's beautiful lips kept twitching, his face was gradually filled with surprise.

"A story of two people?" Cao Qin had a panicked expression on her face. She patted her forehead and tried to accept Sun Yu's Ma Xingkong guess that day.

Cao Qin studied traditional criminal investigation in school. At that time, their understanding of criminal psychology was very shallow.

With the development of the times, the diversification of crimes and the diversification of murderers, Cao Qin also realized the importance of criminal psychology, and she has been studying overtime over the years.

I have to admit that criminal psychology requires a lot of talent. Cao Qin believed that she was not the material, so she asked the special case team for help after the case came up.

Even though Cao Qin had long been mentally prepared to hear a mysterious criminal psychological profile, she didn't expect to hear a story.

A story that Cao Qin really couldn't accept.

"That's why he didn't mention it during the case discussion last night." Xia Lan patiently explained for Sun Yu.

"Fortunately, I didn't say it out loud." Cao Qin smiled and shook her head, "It's not just me, but my younger brothers probably can't accept such a big idea."

"Correction." Xia Lan said with a smile, "He didn't say it because the idea was too big, but because he didn't find any basis to support it."

Cao Qin paused while holding the water glass and asked in confusion: "Is there any difference?"

"Yes!" Xia Lan turned to look out the door, "He has no basis to convince you, so he didn't say anything, but he still followed this direction to investigate, because deep down in his heart he believed this direction was right."

Xia Lan looked at Cao Qin again, with a look like a little fan girl, "I also think he is right, because he is never wrong!"

If Jiang Xiaoyu were here, he would definitely cry and accuse Xia Lan of infringement, because this little fangirl look was unique to Jiang Xiaoyu.

Cao Qin stared at Xia Lan silently. She saw light in Xia Lan's eyes, a light of trust.

After a while, Cao Qin sighed, "Sorry, I still can't accept this story. As I said just now, instead of wasting time on those conjectures, it is better to visit more people.

The line of human traffickers is very important, and it also gives us a new direction. Next, I plan to ask people from the police stations in each jurisdiction to visit the outsiders who have recently been rented by Mo Pai in Yangbai County."

Xia Lan nodded, she was very satisfied with Cao Qin's answer.

Although Cao Qin rejected Sun Yu's conjecture, she also explained her next work. According to normal thinking, this must be investigated.

"To add," Cao Qin said, "we also need to visit the local residents Mo Pai recently rented in Yangbai County."

······

In the archives room, a pile of information higher than his head was placed in front of Sun Yu. These were all information related to human traffickers from ten to twenty years ago, as well as all missing persons report records in Yangbai County during that time period.

.

A cup of steaming tea was placed in front of Sun Yu.

Sun Yu didn't even raise his head, "You don't need to explain to her, she's right, it's just a different angle of investigation."

There was no one else in the archives room. Xia Lan squatted next to Sun Yu and hugged him. She pouted and said coquettishly, "I don't want you to be misunderstood by anyone."

"Exactly!" Sun Yu showed an arrogant smile, "Geniuses often stand on the opposite side of the world."

Xia Lan was amused by Sun Yu's narcissistic tone. She looked up at Sun Yu, who was carefully checking the information, and suddenly had an idea - the murderer this time would eventually be caught by Sun Yu.
Chapter completed!