Early the next morning, Yu Fan took a car to the Behavior Analysis Department of the XA City Bureau to find Chen Frameyang and Guo Na. In the past, Chen Frameyang asked Yu Fan to help with the car, but this time Yu Fan asked himself to come over, which really surprised Chen Frameyang.

Yu Fan stood at the gate of the city bureau and waited, and Chen Jieyang ran out from inside to lead Yu Fan into the door. I haven't seen Chen Jieyang for a few days, and Yu Fan found that he was in a lot of energy, which may be the reason why he was promoted and looked radiant. But then again, Chen Jieyang has always been in good spirits, and this kind of swaggering characteristic is diametrically opposed to Yu Fan's sensitive characteristic.

Chen Jiayang looked at Yu Fan with joy, and it was a big hug as soon as they met.

Yu Fan spoke first: "What about Guo Na?" ”

Chen Jiaoyang leaked a bad smile and said: "Oops, I was thinking about our little Guo beauty as soon as I came, I found out last time in LZ, you are very sullen." ”

Yu Fan smiled embarrassedly and said, "It's your, I'm just asking, by the way, how is the case going?" Did I catch your last train? ”

Chen Jiaoyang's expression was not as wavey as just now, he was a little more restrained, and said: "There is progress, but there are still a lot of troubles, let's not talk about so much, let's take you to see our new office." As he spoke, he pulled Yu Fan inside.

The Behavioral Analysis Department has arrived.

However, this surprised Yu Fan, this is just a room on the second floor of the basement of an old building in the city bureau, the air is full of musty smell, and this room looks like a warehouse. The entire Behavior Analysis Department has a hall and a room, the hall is about 30 square meters, and there is a large screen. The room is about 15 square meters, very narrow, and this small room inside should be Chen Jieyang's office. Yu Fan thought that it was a tall office space now, how could there be several rows of computers and a large screen of 360 degrees. The result is so low......

Guo Na was wiping the table, obviously, she knew that Yu Fan was coming, so she specially cleaned up a desk for Yu Fan. In addition to Guo Na, there is another young man typing, who seems to be a secretary or a clerk. It sounds like a high-ranking behavioral analysis department, and there are only four people with Yu Fan's words.

Yu Fan complained: "Didn't you say that you were promoted? But how do I feel like you've been assigned to the Frontier? ”

Chen Jieyang is still full of confidence: "It's good enough to set up a department for us alone, what else do you want?" After all, this is the beginning, and I feel quite content and free to give us such a big place. Don't look at the basement, the mobile phone signal is not bad. ”

Yu Fan smiled bitterly.

Guo Na looked up and saw Yu Fan, and stepped forward to greet him cordially: "Brother Yu, you're back." ”

Yu Fan looked at Guo Na and said affectionately: "Guo Na, thank you." ”

Guo Na looked at the table and said with a smile: "Brother Yu, you are too polite, I know you are coming today, help you clean up a table, this is a gesture, you are welcome." ”

Yu Fan also smiled slightly and said, "I mean, thank you." As he spoke, he gestured with his hand to the shape of a small piece of paper.

Guo Na reacted at this time, Yu Fan was referring to the small pieces of encouragement that Guo Na Tuo Mao brought to Yu Fan in the past few days.

Guo Na's temples were red, he bowed his head slightly, and whispered: "Brother Yu, you're welcome." ”

Chen Jieyang was puzzled by the second monk next to him, and teased: "What are you two talking about there?" What's the little secret? ”

Yu Fan broke the topic back and said, "Okay, Lao Chen, let's get down to business, what step has it been now." ”

Chen Jiaoyang's expression became serious, and he motioned for Guo Na to turn on the big screen. Chen Jiaoyang told Yu Fan while playing the picture: "In the past few days since you left, we have interrogated hundreds of people, and also arrested some of the main backbone members scattered in XA, this organization has basically been wiped out by us, only their chairman has not been arrested, this person is named Liu Yan." ”

Yu Fan: "There is only one one left, it is a matter of time before he is caught, ask more people who have been in contact with him, and you should be able to understand the information you want." ”

Chen Jieyang sighed and said, "It's strange here, this Liu Yan is extremely low-key. Except for their boss Jiang Ranhydro, no one has ever seen this Liu Yan. Even many people have never heard of it, Jiang Ranhe said that Liu Yan usually contacts him in a single line, and he doesn't know where Liu Yan is. ”

Yu Fan had a flash of inspiration: "Single-line contact, isn't this the same as the contact method of the macro investigation envoy?" ”

Chen Jiaoyang nodded: "Yes, Jiang Ranshan keeps saying that they are just an ordinary pyramid marketing organization. But I always feel that it is not that simple. Moreover, Jiang Ranhe himself said that he had never heard of any macro investigation envoys, and he didn't know what it was. As he spoke, Chen played a video of Jiang Ran's interrogation on the screen.

Yu Fan held up his chin and looked at the video and thought.

Guo Na added next to him: "Brother Yu, we have also considered another possibility, do you say that there will be no character of their chairman Liu Yan at all, will this be a fictitious character of Jiang Ranhydro?" ”

Chen Jiayang followed Guo Na's words: "In this way, this cunning Jiang Ran Hydrocarbon can lead us by the nose and let us always investigate a person who does not exist at all." And fabricating such a fictitious mastermind behind the scenes can also alleviate his crime to a great extent. ”

Chen Frameyang and Guo Na seem to be very reasonable.

"No, Liu Yan really exists." Yu Fan interrupted the reasoning of the two, and stared at the big screen with his eyes.

Chen Jieyang didn't understand why, and asked, "Old Yu, how do you know?" ”

Yu Fan said calmly: "Because Jiang Ran Hydrocarbon doesn't drink water." ”

Chen Jieyang and Guo Na stared at each other, and were confused by Yu Fan.

Yu Fan explained: "When people lie, the blood circulation in the mouth accelerates, and the water in the cells will be lost rapidly. When the internal environment is dehydrated, the osmotic pressure increases, which stimulates the hypothalamic osmoreceptors and transmits to the cerebral cortex, causing us to have an irrepressible thirst. At this time, no matter who you are, you can't help but drink water. But you look ......" Yu Fan pointed to the big screen.

Chen Jieyang and Guo Na turned their heads and stared at the big screen.

Yu Fan: "A cup was placed in front of Jiang Ranhe, but he talked endlessly for more than ten minutes, and he didn't drink a sip of water. First, it shows that his thinking is coherent, and he doesn't need to drink water to delay time thinking about the plot below, so he is basically reminiscing rather than making up. Second, he has no tension at all, so he will not be thirsty, and he will not use the action of drinking water to relieve anxiety. So I don't think it's a state of lying at all. ”

Chen Xiangyang pondered carefully, and it really made sense, but Chen Jieyang asked again: "Then what should we do next?" ”

Yu Fan smiled and said, "When you find that there is a dead end in front of you, take a step back and open the sky." ”