"How do you fish for this? Is it a net-type investigation?" Jiang Chao sighed, "To be honest, I don't think there is enough time to visit and investigate."
"Yeah, so I need to find some people to talk to."
"what?"
"If we are sure that there will be the next live broadcast, that is, in this school or in the whole city, there are still people who may commit crimes, we can find out these people and talk about them through some methods."
"The question is, do you have any quick ways to find someone in your psychology?"
"It's mathematics, to be precise."
Lin Chen took out three pieces of paper from his pocket, which were things he had been carrying with him today. Now it seems that he is very glad that he didn't throw away these pieces of paper because of trouble.
"Use it by the dynasty." He said to Xing Conglian.
"Why are you being so polite, as long as it doesn't kill you, you can use it any way you want." Xing Conglian replied with a smile.
The teenager sitting next to him raised his head from the screen with a pen in his mouth. He was obviously still figuring out how to phrase it so that he could catch those perverts: "Boss, it's easy for me to betray you like this, you know?"
Lin Chen spread the three pieces of paper on the table and said, "In fact, through the results of MMPI, we found that Wang Shishi, Xu Haozhen, and Jiang Liu all have similar personality characteristics, so we can use this characteristic in turn to screen out possible groups of people. ."
"Find out who may participate in the next live broadcast of death?" Wang Chao leaned back on the table in the next second, "There are 30,000 teachers and students in Yongchuan University alone, so I want to find three people who will participate in the next live broadcast? Ah Chen Don't say it, this is really looking for a needle in a haystack."
"You mean, first screen out people with a social introversion score greater than or equal to 70?"
Lin Chen nodded. After what happened just now, he was no longer surprised that Xing Conglian actually remembered the keywords and scoring criteria.
He glanced at Dynasty, and the boy consciously spat out the signature pen in his mouth, and didn't forget to wipe the bitten place with his T-shirt.
After taking the pen, he drew a large circle on the paper and explained: "Assuming this is a high-scoring social introvert..." He then drew a small circle on the edge of the large circle that intersected with it, "This is It's a possible perpetrator." He said, and blacked out the intersection of the two circles, "This is a potential group that we may find."
"I got it! This is to let me hit a library first, get the information about this test, and then screen out the students who scored above 70. How many people are there?"
"What library?" Xing Conglian knocked on the dynasty, "We can adjust the data through due process."
"70 points is about two standard deviations from the mean, so, conservatively, there will be 4% of the abnormal population." Lin Chen then replied.
"Then there will be 1,200 people even if only Yongchuan University is screened!" Chao exclaimed.
"Is there any way to narrow the scope?" Xing Conglian asked.
"Yes." Lin Chen replied simply, "Take another personality test."
Several suicides in this case all showed the characteristics of a major change in personal character, so the students who showed a major change in the score of the second personality test are highly suspicious.
"I understand." Xing Conglian said.
"However, there is still a problem." Lin Chen looked at Xing Conglian, "Suppose we conduct a personality test on students with great fanfare, won't we startle the snake?"
"This is not a big problem. Now that there is such a serious suicide incident in the school, isn't it a normal behavior to check students' mental health?" Hearing Lin Chen's concern, Xing Conglian continued with a smile, "And, wait for you. Wouldn't it be fair to interview suspicious students as an excuse to really identify them?"
Xing Conglian's words left Lin Chen speechless: "You really..."
"What is it?"
Lin Chen shook his head, expressing helplessness.
"The old traitor is cunning, cunning, cunning, especially shameless!" The young comrade Chao Dynasty answered with great justice.
Xing Conglian didn't seem to care about these evaluations. He frowned slightly and asked Chao Dynasty, "How long will it take you to complete the preliminary screening?"
"This is coming soon."
"How long does it take to implement the second policy?" He asked Lin Chen again.
"The test time only takes about an hour, but the process from organizing staff, arranging the test location to notifying students to take the test will be relatively long, and the student base is huge..."
Xing Conglian heard the words and glanced at the time: "It's 16:37 now."
"Yeah, it's almost time to get off work. Even if you notify the counselor now and arrange the test, the first batch of student tests can start around 19:00."
"Do you have an estimate, in which department and in which grade the students we are looking for are most likely to appear?"
"Actually, there will be no significant difference in the scores of students in various departments, but the proportion of students in the Department of Psychology is relatively high..."
Xing Conglian couldn't help laughing: "Does this count as self-pitying?"
Lin Chen picked the corner of his mouth and continued: "According to our school's data, there are also students from the medical school and the chemistry school...
"How many students are involved?"
"Report to the boss, there are 3158 people in total." Comrade Wang Chao replied quickly.
"Meaning, the test can't be done today anyway, right?"
"Even if 20 classrooms are opened at the same time and 800 students take the test, it will take five hours to complete."
"It will be tomorrow morning at the earliest."
But even tomorrow morning, 20 hours have passed.
Xing Conglian nodded and continued to ask, "Can you narrow down the scope a little more?"
"From the perspective of grades, freshmen have just taken the entrance test, so there is no need to take the test again. Many seniors have started internships and are no longer on campus, so they are directly excluded. Therefore, it is good to choose the second and third year students directly."
As soon as the two of them finished speaking, they only heard Wang Chao hit the Enter key neatly.
"Yoooo a total of 1342 people!"
It is indeed very pleasant to work with efficient partners: "I need to trouble you to pick out sophomores and juniors from the Department of Psychology, School of Medicine, and School of Chemistry, and then pull a list for me." Lin Chen said.
"Small idea." The young man heard the words and tapped the keyboard a few times. He stared at the generated data, and said to Lin Chen, "Don't say it, Ah Chen, your psychology department is really special."
"Yeah, I've always been weird." Lin Chen shrugged his shoulders very rarely, and said, "Send me the list, resume, and test results of these people."
"already sent."
In short, Lin Chen probably understood why Xing Conglian had to take the dynasty with him, it was too easy to use.
After the boy finished speaking, he took out a tablet from his backpack and handed it to him: "Look at it with this."
"If we have this list in hand, we can cross compare the circle of friends of the six deceased in this case to see if there is any overlap?" Jiang Chao asked suddenly.
"Yes, yes." Chao Chao took out a candy and threw it into his mouth, "Why are you looking for someone to do it, I still have a lot of things to do."
Even if it was a relaxed and relaxed dynasty from beginning to end, the investigation is still under pressure.
Large-scale population screening and tight time are almost naturally contradictory.
He continued to connect to the dark network, and pressed the refresh button a few times irritably, as if he could get a response from someone on the other end of the network.
"If Captain Jiang has a directory, can you help him do a comparison analysis?" Lin Chen held the boy's hand in a gentle tone.
"It will take a long time to compare, and there is no response from there, I will keep an eye on the reply."
It is rare for the young man to reject him.
Probably because his abilities are almost impossible to use in this dark world, so he is more eager to play a role and defeat something.
As if seeing through the young man's mind, Lin Chen shook his head and said, "You should do more important things."
"Have you heard, let Ren Xian watch the reward later, anyway, you taught it, and the level will not be too bad." Xing Conglian is rarely too tough, "However, if within half an hour, we have not yet When a response is received, some more extreme measures need to be taken."
"What do you want to do?" Lin Chen asked.
"Our current fishing net is too small..." Xing Conglian looked at Lin Chen, "It's mainly because you inspired me to look for a needle in a haystack. Assuming that the murderer behind the scenes is using live broadcasts to make money, then it is impossible for him to reject newcomers too much. Darknet There are also a lot of underground forums, we can write some topic posts, um... "
"You want to say, let me imitate the tone of a psychopath, write a theme post, distribute it on major websites, and widen the fishing net?" Lin Chen keenly noticed the trap.
"You are more professional." Xing Conglian was a little embarrassed, so he took the initiative to say, "I can be responsible for the translation."
Although he was speechless, he had to say that Xing Conglian's opinion was still very reliable. Just as he was about to answer, he heard the other person say, "Consultant Lin knows where the toilet in the office building is. Could you please take me there?"
Xing Conglian is probably the type who finds someone to talk to alone, and has to take into account the mood of other people in the room.
Lin Chen went out with him, and sure enough, the captain of the criminal police didn't mean to solve the physical problem at all, he just found a window, opened the window halfway, and lit a cigarette.
"What's up with him?"
Lin Chen was a little surprised. He didn't expect Xing Conglian to call himself out to inquire about the psychological state of the dynasty.
"He must be nervous."
"Are you nervous?"
The question changed too quickly, and Lin Chen couldn't react.
"not yet."
Light-colored smoke rose up, and Lin Chen was a little uncomfortable being stared at by him.
"Anyway, I hope you don't feel too much pressure. If you have any problems, you can tell me." Finally, Xing Conglian spoke.
At that moment, Lin Chen suddenly understood Xing Conglian's intention, he almost shook his head helplessly, Xing Conglian really passed his head.
From the beginning to the end, Xing Conglian did not ignore the most critical issue. He knew that Zheng Dongdong had a grudge against him, and he knew the housekeeper Chen, and he could properly use these two people to set up such a big trap. Such a behind-the-scenes manipulator seemed to be against him. Everything is too familiar.
"If you want to know, you can buy me a drink when this case is over."
Lin Chen raised his head, looked into Xing Conglian's eyes, and said this.