If the criminal police want to solve the case, it is generally such an old method, constantly visiting and investigating, large-scale investigation, and almost all the impossibilities have been eliminated, so that the murderer can be roughly detained in a relatively small circle.

And in this small circle, it is still necessary to repeatedly investigate, understand, and investigate, until the suspect is finally found.

Traditional criminal investigation methods generally repeat these processes.

So I usually hear that I want to be a criminal investigation policeman, and I feel very handsome, but it's really sad, how many people can understand that?

Looking at the current Zu Zhengwen and Yu Yang's eyes red like rabbits, you can know that they must have not slept all night, turning over and over to investigate the surrounding eyeliner.

I was afraid that I had missed something, and it wasn't until the last two of them had made sure that there was no news missing, and then they came back to report.

It's just that when they reported, these two people obviously looked a little unsightly.

The reason is nothing else, just because of this trip, after the two went out, nothing was found.

According to their investigation, during this time, no one in the Bencheng generation has ever had a dark flower.

In fact, no one has the possibility of a dark flower, Ding Fan has already thought of it.

It is not surprising at all that there are not many people who have the courage to do something to Deng Xichao in Bincheng.

This kind of person has his own resources in his hands, and it is not very difficult to find someone to get rid of him.

On the contrary, there is a dark flower, and no one may take over for a while, and after a long time, Deng Xichao knows about it, and it will be self-defeating if he doesn't do it.

The reason why Ding Fan asked them to go over to investigate this matter was actually to make a backup plan, and after strictly investigating this point, this could be relieved.

After the two came back, Ding Fan asked Zu Zhengwen to follow Gu Nian to investigate the clues on the prison side.

If Ding Fan didn't guess wrong, it wouldn't take long for the clues given to her to respond, and when the time came, this girl wouldn't just send this thing to herself, and Bacheng would touch it herself to check it.

If there was no Zu Zhengwen to go with her, Ding Fan would not be at ease!

As for Yu Yang, he stayed here for the time being and reported to Ding Fan.

But looking at his appearance, it seems a little reluctant.

"What do you mean, do you want to rest first, you haven't rested all night!"

Ding Fan is really a little worried about the bodies of his subordinates, staying up late for a long time, he can't stand the iron beating, not to mention the people who are mortal with flesh and body.

If this is an old criminal policeman, he will definitely find time to rest a little at this time, after all, there is no progress in this case for the time being.

I may not be able to see anything in the near future, but it will be different later, the clues will continue to be turned out, and everyone will have to be busy at that time, and there can be no omissions at a critical time.

Therefore, for the sake of the subsequent investigation, the average old criminal police officer will make reasonable use of his time, and he will definitely not be polite when he should rest.

"I'm fine, I'm young and strong, just get less sleep, it's nothing. ”

While speaking, Yu Yang also reached out and patted his body twice, showing off his strong body.

Ding Fan nodded, didn't say anything, walked to his side to look at his dark circles, and shook his head at him.

"I'll give you an hour, get some sleep, I'll go out and do something, and in an hour, I'll wait for you downstairs in the car. ”

After finishing speaking, Ding Fan turned around and left the office, and Yu Yang stayed in the office alone.

An hour later, Yu Yang was like a spring, bounced from the bed, hurriedly washed his face, and ran downstairs in a panic, and when he saw the car at the door, Ding Fan was sitting on it, as if waiting for him.

"Boss, where are we going today?"

Yu Yang hurriedly sat in the car and asked Ding Fan with a smile.

On the contrary, Ding Fan was not in a hurry at all, glanced at Yu Yang beside him, just smiled, didn't say anything, and drove off directly.

Ding Fan was a little suspicious of this Guan Chong from the beginning, after all, his identity itself was a bit problematic.

In addition, Qiao Dayong said before that the night before Deng Xichao's death, Guan Chong had gone to Qiao Laosi's house, and the two chatted at home for more than an hour.

If Deng Xichao's death was completely arranged by Qiao Laosi, then the person who reached out to do this was probably Guan Chong.

Guan Chong left Qiao Laosi's house at nine o'clock in the evening, less than ten o'clock.

This time, Qiao Dayong had accurately recorded before, and there was no problem in thinking about it.

And the time of Deng Xichao's death was at about three o'clock in the morning of the next day.

Then there are only five or six hours in the middle, and in such a short time, if you want to arrange an accidental murder, Guan Chong is afraid that it will be very difficult even if he wants to find someone.

Unless he already had such a person, he just arranged it by his side at the beginning, and this time he used it temporarily.

Of course, these are still unknown, and they need to be investigated and proven.

"Here it is. ”

Ding Fan took Yu Yang and the two of them to drive for more than half an hour, crossing three streets before arriving at a tavern with a small face.

"What is this place?"

"Didn't you forget? Didn't you make a record of Guan Chong before? He said that the day before the crime, he drank with his friends here, and he drank a lot, and he didn't go home to sleep until it was almost dawn, right?"

Yu Yang recalled, and after looking up at the door of this tavern, he suddenly understood it.

It's just that he has called to ask before, and the boss said that Guan Chong is a frequent visitor to his place and often brings him to his house for drinks.

So although the two are not very familiar, they still recognize each other when they meet, and the night before the crime, Guan Chong was really drinking late here.

Yu Yang had heard these things before, and there was nothing strange about it, and he didn't understand why he wanted to come here today.

Ding Fan didn't say anything, he got out of the car and walked directly to the Xiang Tavern, and beckoned to the boss behind the counter.

As soon as the boss came over, Ding Fan took out his ID and stretched out his hand to point to the chair opposite.

"We are from the criminal police team, and I want to trouble you today, there is something to ask. ”

As soon as he heard that it was the police, the boss immediately panicked.

Especially when he saw the two policemen sitting in front of him, he was a little restless, but he could only nod his head and agree.

"That's the case, this person's name is Guan Chong, I don't know if you recognize it?"

Ding Fan stretched out his hand and took out a photo and put it on the table, signaled to Yu Yang beside him, and told him to prepare for the record.

"Oh, I know, but I don't know what his name is, he used to come to me often, and he drank two sips each time, but this person is very self-disciplined, and he never drinks too much, every time it's two taels. ”

"Then do you remember, on the seventh of this month, did he come?"

The boss reached out to wipe the sweat on his head, reached out and scratched it twice, recalling with a little difficulty.

"Here he was, I remember that he did come that night, and drank a lot, and it was the first time I had seen him drink so much, and he drank so much, and I was a thief that night. ”

Ding Fan looked at the boss and seemed to be a little nervous when he saw the police, reached out and took a cigarette out of his pocket and handed it to him.

"Tell me, what happened that night, how was it so lively?"

Ding Fan stretched out his hand and lit a cigarette, threw the cigarette case in his hand on the table, and asked casually.

And the boss seems to have smoked, and he has no previous fear of Ding Fan and laughs

He smoked a cigarette in his mouth, and by the way, recalled what happened that day.

"That night, he came a little late, usually he came at eight * nine o'clock in the evening, had a drink and left, that day it was a little late, it seemed to be almost eleven o'clock to come, after drinking for a while, he held a black bar in his hand...... Eh seems to be such a thing, standing at the door for a while, as if he was talking to the black box for a long time, probably because he drank too much. ”

Ding Fan stretched out his hand to pick up the eldest brother at the table, and glanced at Yu Yang beside him in surprise.

I didn't go to the scene to ask the boss about the specific situation, and I really missed an important clue.

I didn't know that this Guan Chong had a big brother in his hand before, but fortunately, he came here today.

"Did he drink alone that night? What time did he leave?"

"But no, at the beginning he was sitting alone in the small gala, that is, the window table over there, at that time, in addition to him, there were a few people also drinking at my place, the other table of people was more lively, it seems to be a foreigner, the accent of the speech does not seem to be local, but it sounds not far away, somewhat with a little northeast flavor, it seems that it is almost twelve o'clock, I plan to close the stall here, but these people drank too much, do not leave, at this time, he stood up, walked to the middle of this group, chattered a lot, as if with this group of people are in the same place, both tables of people do not know what the situation is, just sit on a table and start drinking, this drink is for several hours. ”

"I just saw that he was a regular customer, so I didn't chase people, and they drank until it was almost dawn before leaving. ”

Foreigner?

Guan Chong didn't say that before, he said that he drank with his friends, and in the blink of an eye, he became a foreigner?

Could it be from Yungang?

At this point, the owner of the tavern obviously doesn't know, but it doesn't sound far away, and this may be a big deal.

"Didn't he leave in between?"

"No, no, no, although I went out in the middle, I just went to the toilet and came back, I guess I vomited, and I came back when I was done. ”

"How long, when did you go out?"

When Ding Fan asked, the boss was also a little confused.

Isn't it just going to the toilet?

Do you still need to ask so clearly?

But since Ding Fan has asked, he still has to think about it.

"It seems to be the second half of the night, the specific time is not clear, but I remember that it seems to be a little bright outside, he stood up and said to go to the toilet, this walk before and after about ten minutes, I was afraid that something would happen to him, so I went over to see him, he was lying on the wall at that time, still holding this thing in his hand, as if he said something. ”

"What did you say?"

This sentence is likely to be the key thing.

So when Ding Fan asked, he was a little anxious.

It's just that after this eager question, the boss was obviously taken aback by Ding Fan.

"I ...... I can't remember this, and I don't remember it very clearly. ”

At this critical time, the most important sentence, this boss can't even remember, it's really a critical time to drop the chain.

But this matter can't be rushed after all, people can't think of it, can they still pry people's brains open?

"It's okay, I'm sorry for you to bother with this matter, think about what he said that day, it's still important to us, remember to call me. ”

After leaving the phone, Ding Fan planned to leave with Yu Yang.

Who knew that before the two walked out of the door, the boss chased them out, with an eager expression on his face.

"Comrade, I remember when he was at the door, he seemed to say, what is not bad to you, is it useful. ”

Ding Fan was stunned for a moment, turned around and glanced at Yu Yang beside him, took a long breath, and a faint smile finally appeared on the corner of his mouth.