"You're borrowing a Level 4 file. It cannot be circulated, copied, or taken out of the unit. Sister Xue said as she gently stirred the coffee in her hand.

"Isn't the file supposed to be for everyone's study and reference, and it's still confidential?" Sister Xue didn't speak again, but looked at the door behind Luo Xing with her eyes. Luo woke up and understood. After signing the letter, he took the file, gently led the door, and returned to Zhang Xiaoling's "Wenxiang Pavilion".

"You didn't explain the file discipline to me clearly in advance, why are there so many rules?Is the fourth level high or low?" asked Zhang Xiaoling as soon as Luo woke up and sat down.

"Hehe~ It's not too late to tell you. I just like to see you deflated. Zhang Fatzi smiled evilly. "I don't know how the file is graded, but level four is the lowest. As for why there are so many restrictions, I do know. ”

"The files of our unit are all extraordinarily large or representative cases that have been cracked. and unsolved backlogs and unsolved cases. Extra-large refers to those that have the characteristics of continuous universality, viciousness, and severity. Representativeness includes cross-regional, cross-category, and even clash of beliefs. There is not much to say about the backlog of cases and unsolved cases. Secrecy procedures in the detection process are necessary. The continuity and evil strategy are also easy to understand, and serial killers are selling points in various dramas. I don't understand universality, do you?"

The fat man took a sip of tea and continued: "Universality mainly refers to the fact that in many cases, the modus operandi is not unusual. To put it bluntly, it's easy to use. For example, the use of poisons. Although many pesticides are used regularly, most of them are used to kill themselves. Killing someone with pesticides is a fool.

Pesticides are generally not very toxic. Even at room temperature, it has a strong pungent taste. It can only be used to kill people. You can come hard, which means that you are in a dominant position during the fight. But what if there's an easy way to get rid of the flavor and keep the toxicity intact? Or oleander, for example, which many people have at home. It is also easy to purify and remove the taste. What are the consequences of popularization? Lower divorce rates?"

Zhang Xiaoling didn't take it seriously for two minutes before he began to talk poorly again. "There are also some simple levers, mechanical afterburners and other methods, which are enough to learn with a primary school degree. Another example is that many high-IQ crimes are not designed with much ingenuity, but are clever at manipulation. Manipulating people's hearts and desires. This should be the type of dossier you have in your hand. I seem to remember the number. It seems that Sister Xue also put a lot of thought into it. As for the representative cases, they are relatively high because they involve many sensitive factors. I only know it, but I don't know why. ”

Luo woke up and looked at the green file box in his hand, shook his head and put it on the table again. Turning his head and continuing to ask Zhang Xiaoling, "Brother Zhang, what type of case is the most complex case you have ever participated in?"

The fat man stood up with a frown. "You little comrade has a big heart. Thinking about that now is too far away for you. I haven't been involved in any cases that are too complicated. Although there are various types of cases in the archives, I was only curious at the beginning, and I borrowed a few times and stopped borrowing. I think my little heart still needs more exercise. ”

Zhang Xiaoling paused when he said this, and began to rotate his fingers alternately. After a while, he thought about it and continued: "I originally thought that successive and cross-border cases were the most complicated. Later, your master said that there is nothing most complicated, only more complicated. I asked, what case is more complicated than this combination? Your master said it was a "growth" case. You're progressing, criminals are growing. I asked if there was anything more complicated than "growth"? It's the kind of "growth" criminal who is very random and constantly changes his habitual methods. It is not the madman who is better than the madman. ”

Zhang Xiaoling paced slowly in the room. "I said there is such a madman? Isn't that impossible to catch? Your master said with certainty that he could catch it. Randomness means more unexpected factors, and changing habits means more chance. The combination of these factors can lead to greater uncertainty. Therefore, habitual offenders do not easily change their methods and habits. ”

Speaking of this, Zhang Xiaoling stopped, stared at Luo Xing, and said in a serious tone: "You study hard." Do you know the reason why your master is reluctant to retire at this age? He can't let go of the hurdles he can't let go of. ”

"What is it?" Luo asked subconsciously. The fat man waved his hand and returned to his chair and sat down. "I don't know, don't ask. ”

"Look at your button, it's a pity that you don't tell the story. Luo woke up and didn't want to give up the topic, and tried to stimulate Zhang Fatzi.

Zhang Xiaoling continued to shake his head and did not answer. Keep rolling your fingers. It's a little cold. Zhang Xiaoling's expression seemed to be self-reproaching. looks like a lot of words.

"Let's change the subject. Brother Zhang, you are so knowledgeable, can you tell me how to quickly blend in with the crowd without being noticed?" Luo Xing's question successfully diverted Zhang Xiaoling's attention. Zhang Xiaoling relaxed his straight back and nested himself into the wide leather chair. With some difficulty, he lifted Erlang's legs, and then crossed his hands in front of his chest. Turning his thumb, he watched Luo wake up with a smile. "You haven't studied?"

Luo woke up and waved his hand, and said in a whimsical voice: "I mean integration without the help of external forces. ”

"Do you remember what Uncle Guo called your master at the door?" Zhang Xiaoling said in response to the question. "Old stubborn donkey. When I first transferred your file, I asked your master, this kid is not outstanding? Why did you choose him? Your master said, "Stubborn!" And he is very stubborn. Your master is an old-school stubborn. He wants you to pass on his stubbornness. This stubbornness is a kind of ethics. ”

Zhang Xiaoling paused again when he said this, and then continued thoughtfully: "The people here are basically more educated and smarter than you. But the old director chose you as an apprentice. To be honest, I'm a little jealous. In addition to being a little thinner than me, you are only stubborn.

Now I suddenly found out that you kid is still a little bit of a change. Are you asking me so "implicitly" now, are you already using external forces?" After speaking, Zhang Xiaoling smiled. The smile is ambiguous. A villain who "your plot has been revealed" has a will.

Luo woke up a little angry, "This Zhang Fat Man, I said before that there were so many twists and so many acting skills, just to prove that I was stupid in disguise, and I was still "stubborn and stubborn". ”

"You haven't answered my question yet?" Rowe asked, waking up and pretending to be stupid.

Zhang Xiaoling sat up slightly straighter, his eyes shining with a sly light. "Isn't it just blending in? Do you know the difference between a famous doctor and a quack?"

Luo woke up ignorant. A look of "I don't read much, don't lie to me". Shaking his head and nodding his head. "Famous doctors, quacks, or whatever, does it have anything to do with the question I asked?"

"You can't teach your son, it's stupid. Let's mimic a doctor's visit. I'm a doctor, you're a patient. As for whether I am a famous doctor or a quack, you will judge for yourself later. ”

"Not later, I know you're a quack. Luo woke up and glared at the fat man, and said angrily in his heart: You are sick. You fat man who has blended into the public security team looks like a patient no matter how you look at it.

"Seriously, do you want to learn? Patient, why are you uncomfortable?" the fat man continued with a smile.

Luo woke up and languished. "Doctor, I have a headache. ”

"Why are you holding your stomach for a headache?" "Have you taken your medicine?"

"Eat, it doesn't work?"

"It's not enough to eat, it's not right. Look at your Yintang blackened, and your eyes are full of peach blossoms. I think I have a cold. ”

"What planet are you from? It's almost a hot day, how can you catch a cold? I can't even afford a fan. ”

"Do you understand the heat cold? This is the external evil entering the inside, and the internal heat is manifesting. Go home and prepare for the future, no need to take medicine. ”

"You quack, I'll burn you paper when you get back!" Luo woke up and roared.

"Look at you now, full of energy and red face. It proves that I am a skilled doctor and have been cured with medicine. ”

"What a red light, I was rushed to the top door by your angry blood. ”

"That's to get back to the light, and notify the family immediately. We have a one-stop service of crying, burning, and burying here, and a 20% discount on feng shui treasures. ”

Luo woke up and couldn't go on. "I said Brother Zhang, what do you mean by that? I still don't understand, what does this have to do with what I said about being inconspicuous?"

Zhang Fatzi looked disdainful. "I sympathize with your IQ. As the saying goes, it is better to teach a man to fish than to teach him to fish. I'm not teaching you the specific way, but the method, do you understand? Besides, you didn't say what the person you're trying to approach is? If you want to fit into the women's bathroom, you have to do surgery. ”

After speaking, Zhang Fatzi took another sip of tea. Cleared his throat. "And the way I'm telling you is a universal truth. That's ---- I can't tell you directly, then you're not impressed. ”

Luo woke up and felt that his head was really starting to hurt a little. Zhang Xiaoling should have been reminded by the teacher, so he avoided his questions in a way that was almost joking. This cunning fat man, he not only saw through his own careful thinking a long time ago, but also took himself to play cymbals by the way. It's hateful.

Seeing that Luo woke up and didn't speak, Zhang Xiaoling put down the teacup again and slowly enlightened. "Actually, you're still in a hurry. In any profession, it is taboo to rush for quick success. Think about the ancient dragon I told you, and then think about Liang Yusheng. Did your master tell you about Xiao Yusheng?"

Luo woke up and shook his head: "Which hero is this?"

Zhang Xiaoling nodded and said, "What a hero." Xiao Yusheng, footprint expert. He has done it in the public security system in the Republic of China and after the liberation. There is no culture and no famous teacher to guide him, in order to study the characteristics of the footprints, he set up a stall at the front door to repair shoes for two years. I also learned pedicure from a pedicure master at a public bath. It is precisely because of his calm heart that he has a later generation of "divine eyes". There is calm in every big event. What's more, the problem you're facing now isn't even. ”

Zhang Xiaoling stood up and walked to the table where Luo woke up, pointed to the green file box and said, "Sister Xue's calmness and logic are also exercised. You only see the colors in the room, then you find that none of these colors are fluorescent. Sister Xue can quickly find any file according to memory and color without light.

When Sister Xue was young, she was nicknamed "Gongtou". Talking to people is always interrupted and moved. In fact, she is exercising her logical memory by interrupting the way, and exercising her reflex memory by moving the bar. In her own words, it is "moving the bar to increase knowledge, and breaking out true knowledge". It's just that she is now more knowledgeable and has fewer words. ‘’

As he spoke, Zhang Xiaoling patted Luo Xing's shoulder, and changed to a senior tone. The so-called "easy to know is difficult to do, easy to know is difficult to do", no accumulation of steps can lead to thousands of miles. Everything starts from little by little, and everyone understands these truths. If you can really do it, you will have your own achievements. Little comrade, think about it, right? Finally, I will give you some free hints, this dossier given to you by Sister Xue should be helpful to your question. Calm down. Let's take a good look. ”