The middle-aged woman seemed to be happy to chat with Gu Chen, perhaps because she didn't have many friends here, so when she saw a handsome young guy like Gu Chen, she was also happy to talk to him.

"Xiao Wan. At this time, another middle-aged woman walked back from outside the yard with a vegetable basket, followed by a six or seven-year-old boy.

also saw that she was chatting with Gu Chen, so the middle-aged woman carrying the vegetable basket couldn't help but ask, "Is this your relative?" or a friend?"

"Haha, how can it be my relative?" The woman named Xiao Wan smiled, looked at Gu Chen and teased: "I wish I had such a handsome relative, this is a tourist who came here to stay, the fruit I bought just now was scattered, he helped me pick it up, we just chatted a few words." ”

"I said. The middle-aged woman carrying the vegetable basket also looked Gu Chen up and down and said with a smile: "I said why I've never seen you here, it turned out to be a tourist, but there are not too many tourists here, and if there are more, the rent will have to rise." ”

"Haha, look at what you said. Gu Chen also responded with a smile.

At this time, the six or seven-year-old boy directly helped his mother take off the vegetable basket, walked to room No. 10 next to Gu Chenfeng's garage, opened the door and walked in.

"You live next door to me?" Gu Chen said.

The middle-aged woman who carried the vegetable basket first also smiled and said: "Yes, Wan Xin and I are fellow villagers, both work here, I live in room 10, she lives in room 9, and there are several windmill houses here, and they are also our fellow villagers over there." ”

"Oooh. Gu Chen just asked casually, he didn't expect this eldest sister to be so enthusiastic, and he couldn't wait to talk to Gu Chen for a long time.

Seeing that Gu Chen's response was not very enthusiastic, the woman wiped her hands and took the initiative to reach out to greet Gu Chen: "My name is Su Jing, what's the name of the handsome little guy?"

"Gu Chen. Gu Chen stretched out his hand to deal with it.

"Then welcome Brother Gu Chen to travel to Dahe Town, I will sell tickets in the town's cinema, and I have time to play." ”

"Good. ”

After the two briefly teased each other, the woman named Su Jing also left, leaving only the previous single mother Wan Xin still standing in place.

Seeing Gu Chen's embarrassment, Wan Xin smiled and said: "This is my fellow countryman, a very enthusiastic person, who lives next door to my house, and the relationship is also very good. ”

"Haha. In addition to being embarrassed or embarrassed, Gu Chen, a person who usually talks a lot, also saw that the other party was too enthusiastic, but he didn't know what to say.

In fact, this has too much to do with Gu Chen's work habits.

When handling cases, Gu Chen was able to talk endlessly about criminals according to clues, cooperate closely with colleagues, and talk a lot a day.

But when the work was over, Gu Chen would instantly become a quiet person again, and if it wasn't necessary, he wouldn't even want to say a word.

is the only one who often talks to herself, otherwise her attribute of saving words will become more and more serious.

Looking at the vegetables in his hand, Wan Xin said: "Look at my brain, I forgot the time when I saw the handsome guy, I still have to go back to cook, do you want Gu Chen to come over for dinner together?"

"No need. Gu Chen refused with a smile: "The family went to buy it." ”

"Oooh. Hearing that Gu Chen came with his family, Wan Xin smiled and said, "Then I won't bother you, then I'll leave first, bye." ”

"Bye-bye. ”

After saying goodbye to Wan Xin, Gu Chen walked casually on the lawn in the yard, and when he saw his father Gu Baichuan driving back with his mother Xiao Xiaofang, he took the key to open the door.

In the evening, the family watched TV and ate food in the windmill house with great interest, feeling that this is how a vacation should be.

Xiao Xiaofang looked at Gu Chen lying on the sofa on his side, and couldn't help asking, "I said son, go to work early tomorrow morning, is it too late?"

"Just in time. Gu Chen didn't move, and replied directly: "The clothes for work are all in the sub-bureau, early tomorrow morning, I will drive directly to the sub-bureau, and you will take a taxi home by yourself." ”

"Mm-hmm, yes. Xiao Xiaofang said.

Gu Baichuan also said: "As a policeman, everything is good, but there are too few holidays, especially you criminal investigation team." ”

"When a family like us travels, we don't know when the next time it will be. ”

"There will be opportunities in the future. "Gu Chen is still like a stone Buddha.

At this time, there seemed to be some shouting in the courtyard outside, and a group of children were taking advantage of the moonlight to giggle on the lawn.

There are even naughty ghosts lying on the window of the living room of the No. 11 windmill room, peeking at Gu Chen's family watching TV.

couldn't stand the noise of the children outside, Gu Baichuan directly closed the curtains, and then walked back to the room and said, "I'm too tired to play today, I'll go to bed first, and you guys should rest early." ”

"Yes. ”

"Watch TV and go to sleep. ”

Gu Chen and Xiao Xiaofang responded in unison.

......

......

A week after returning to the Seremban branch, the work does not seem to be too cumbersome.

Since all kinds of thieves are rampant at the end of the year and stop after the year, the work is not busy, and there is even a little leisure.

As a result, some of the rest hours were also adjusted, and many evening shifts were cancelled.

After the Lantern Festival, most of them are holding a summary meeting and making arrangements for the new year's work.

Gu Chen has listened to the report a little bit these days, but colleagues from other places have brought a lot of hometown specialties, which is the only place where everyone is gratified.

In the office hall on the first floor, a little girl who applied for an ID card for the first time and received it, after looking at the ID card in her hand, she also said to her mother: "Mom, I will also be a person with an ID card in the future." ”

"Yes, my daughter has grown up, but don't throw this thing around, be careful to reissue it if it is lost, and also, it's good to keep it at home, but don't let the bad guys do bad things with your ID card......"

A loving mother's teachings to her daughter can be nagged for a long time, and the girl is also a little impatient to listen, nodding vigorously, but in fact, she is already absent-minded.

I also saw Gu Chen, Lu Weiwei and Officer Wang, the three of them happened to come down from upstairs and met a few people who came to handle business, and they were busy helping everyone explain.

So the girl hurriedly took her ID card, got rid of her mother's shackles, and came to Gu Chen's side and said, "Comrade police, they all say that our country has a large population, so will our ID number not be enough?"

Gu Chen glanced back at her and said with a smile, "You're here to get an ID card, right?"

"Yes. The girl took it in her hand and showed off: "I just got it today." ”

Gu Chen nodded slightly, and directly took the girl's ID card.

Although the girl's question was a little naïve, Gu Chen still seriously lit up her ID card in front of her, pointed to the citizen ID number below and said, "This string of numbers is impossible to repeat, and it is also the code of your identity." ”

When the girl saw Gu Chen responding to herself, she immediately smiled and said, "Then how are these numbers determined?"

Gu Chen said with a direct smile: "Actually, these identity numbers were set when you were born and went through the household registration, with a total of 18 digits, divided into 4 paragraphs. ”

"Digits 1 to 6 are the address code, according to the administrative division code of our country, two by two, corresponding to the provincial, municipal, and county-level administrative districts where your birth is registered. ”

The girl nodded dumbly, but her eyes did not look at the ID card, but stared at Gu Chen's eyes.

Gu Chen pointed to the ID number, and then said: "7 to 14 digits are the date of birth code, and 15 to 17 digits are the sequence code, which is used to give people born in the same place, the same year, the same month, and the same day, and number them in order to prevent duplicate numbers." ”

"The 17th digit is an odd number for male, an even number for female, and the last digit of the ID number is a validity code, which can be used to check whether the ID number is real. ”

The girl was stunned: "Then can this ID number be fake?"

"Little sister. Lu Weiwei also saw her get the certificate for the first time, and she couldn't help but say: "At the current level of technology, everything is fake, but our country's ID card is anti-counterfeiting, and you can tell if it is true or false." ”

"That's right. Gu Chen also nodded, and continued: "How to detect the validity code? Our country uses the MOD11-2 verification system. ”

"First of all, each bit of the ID number has a fixed weight coefficient equal to the remainder of 2 to the power of 18-i divided by 11, and the i is the number of digits of each number. ”

"Multiply the numbers of the first 17 digits with the corresponding coefficient and then add them to get the numerical value S, for example, the numerical value S of the ID number is 221, and divide this S by 11 to get the remainder 1. ”

"After subtracting this remainder from 12 and dividing it by 11, the remainder 0 obtained is the value of the check code, and the check code obtained in this way can range from 0 to 10. ”

"Among them, 10 will be represented by the X of the Roman horse number, because the value of the check code, and the number of digits and digits where other numbers are closely related, when entering the identity number, if there is a replacement of the numbers, interchange, shift, the calculated check code can not match, the computer will automatically report an error. ”

"However, it is important to note that if two digits are replaced, it is possible to arrive at the correct checksum and not identify the wrong number. ”

Therefore, in order to verify whether you are or not, it is not enough to rely on the numerical verification of the identity number, but also the anti-counterfeiting of the ID card itself. ”

Listening to Gu Chen's various explanations, the girl was directly confused: "I said comrade policeman, I blinked, and I couldn't keep up with the math class, as if I could understand what you said so much." ”

"Haha. Officer Wang also smiled, and couldn't help but say: "It doesn't matter if you don't hear it, anyway, if you want to prove whether you are you or not, you can do it with one ID card." ”

Looking at the girl's half-understood look, Officer Wang said again: "Also, since you are a person with an ID card, don't do bad things in the future, as long as you have done bad things, you have been entered into the system by our police, no matter where you are in the future, as long as we enter the ID number, we can know what you have done." ”

"Huh?" was also frightened by Officer Wang, and the girl's face darkened: "Isn't that very free." ”

"Freedom is relative. Gu Chen said: "When you need freedom, you also need to take responsibility, ID cards can protect you and supervise you, as long as you are a law-abiding citizen." ”

"And now the ID card has many functions, and many things need to be handled with the ID card, so you must take good care of it, don't lose it, and don't sell the ID card to criminals for profit. ”

"Huh?" When the girl heard this, she was stunned again: "This ...... Can this ID card still be bought and sold? Someone else collects it?"

"Of course. Gu Chen nodded and said seriously: "Some lawbreakers will buy ID cards from some migrant workers who are short of money to spend at a price of hundreds or thousands of yuan each, and then use these ID cards to do some illegal things." ”

"So one day you somehow become a corporate legal person, or somehow owe a lot of debt, don't think it's unreal, it's probably because your ID card is being used. ”

"It's horrible. The girl's face froze.

I just wanted to have a conversation with Gu Chen, but I was educated and explained by three policemen in turn.

I feel that the ID card in my hand is not an ID card, but a gold bar, which is worth a thousand gold.

At this moment, Officer Wang's mobile phone suddenly rang.

He took the phone, and after communicating on the side, he immediately patted Gu Chen and Lu Weiwei on the shoulder: "There is a police situation over there in Dahe Town, we have to leave immediately." ”

"Understood. After Gu Chen returned his ID card to the girl, he immediately followed Officer Wang and Lu Weiwei and rushed directly to the parking lot of the compound.

It didn't take long for a police car with a license plate ending in AE86 to rush out of the carport in the posture of a dragon swinging its tail and drive directly into the endless flow of streets.

On the way, Officer Wang kept communicating on the phone and contacted the relevant police of the Dahe Town Police Station to make arrangements.

While Gu Chen was driving, he kept looking at Officer Wang in the rearview mirror of the car, and felt that Officer Wang's expression was extremely serious, as if something major had happened.

The moment Officer Wang hung up the phone, Gu Chen hurriedly asked him, "Senior Brother Wang, what's the situation?"

"There's a homicide over there. Officer Wang paused for a few seconds, then held his forehead and said, "It seems that this time it is a bit serious." ”

"Murder?" Lu Weiwei immediately turned back nervously.

"Don't ask. Officer Wang waved his hand, lay on the seat, and couldn't help but sigh and said: "It's going to be the scene to talk about, but it's not clear now." ”

Gu Chen nodded, turned on the roof alarm, then gave oil and accelerated forward.

As soon as I arrived at the boundary of Dahe Town, there was already a police car waiting at the intersection.

also saw someone from the Furong Branch, a young probationary police officer, immediately stepped forward, and Gu Chen also took the opportunity to park the police car on the side of the road.

"Hello, I'm Zhang He from the Dahe Town Police Station, you can just call me Xiao Zhang, it's the director who asked me to pick you up. ”

"Furong Branch, Lao Wang of the Third Criminal Investigation Group. Officer Wang reported to his home.

"Criminal Investigation Group 3 Lu Weiwei, this is Gu Chen. While Lu Weiwei directly reported her home, she also helped Gu Chen introduce her.

Zhang He nodded: "You came at the right time, this kind of thing happened in our Dahe Town, and the director was frightened, so you follow me behind the car, and I will take you to the scene." ”

"Good. Gu Chen nodded.

Then, Zhang He trotted all the way into the car, driving the police car to lead the way in front, Gu Chen followed him, and kept turning to a forked intersection.

But on this road, Gu Chen knew that he had passed through this place on vacation with his parents a week ago.

Moreover, the route Zhang He took seemed to be more and more familiar, and when he saw a row of windmill houses in the distance, Gu Chen's whole face was shocked, and he had a sense of foreboding.

And just outside the courtyard of the windmill house, there seemed to be a large crowd watching.

After Zhang He parked the car, he hurriedly ran to communicate with a third-level police inspector, and then pointed to the vehicle where Gu Chen was, and the two greeted each other almost at the same time.

Gu Chen parked the car, the three of them put on police equipment and got out of the car, and a third-level police inspector with a bit of belly hurriedly stepped forward to greet him: "Lao Wang, Lu Weiwei, Gu Chen, it turned out to be you?"

"Lao Gao, what's the situation?" Officer Wang put on his police hat and looked a little serious.

Director Gao shook his head and said, "You can go to the scene to see, come with me." ”

Seeing that Director Gao didn't want to mention it in a place where there were many people, everyone also understood.

So, led by several police officers, they dispersed some of the onlookers and made way for a passage.

Several people got through the cordon and came directly to the compound.

"Big Windmill Resort Hotel?" Gu Chen couldn't help but pronounce the name.

"yes. Director Gao also said as he walked: "This hotel, the business was good before, but then it was not good, and there were few tourists, so I rented these characteristic windmill houses to some outsiders at a very cheap price." ”

"But just last night, this kind of thing happened, and now the whole village, as well as Dahe Town, everyone is spreading about this matter, and there is a lot of pressure on public opinion. ”

It was also at the same time as Director Gao's introduction that Gu Chen found out that the old lady who was open to Gu Chen in the crowd immediately took the initiative to walk in front of her.

"Old lady, let's meet again. ”

Looking up at Gu Chen, the old lady seemed to have some impressions, but she couldn't remember it for a while, so she could only be embarrassed: "Young man, we seem to have met, right?"

"Not only have I seen it, but I also know that you are in charge of this big windmill resort, and you are in charge of opening the rooms. ”

Hearing Gu Chen say this, the old lady seemed to have some impressions, and after thinking about it for a few seconds, she said, "I remember, you were on vacation with your family that day, and I opened a room for you." ”

"Yes. Seeing that the old lady was not confused, and that she was within the cordon, Gu Chen suddenly guessed that the police needed the old lady's cooperation.

"Gu Chen, do you know Aunt Zhang?" Director Gao also saw that Gu Chen had just come to the avenue, and he could get to know Aunt Zhang of this big windmill resort hotel, and the whole person was also stunned for a while.

Gu Chen nodded and said, "A week ago, I lived here. ”

"Oh, I see. When Director Gao heard this, he immediately said lightly: "Then you must be very familiar with the situation here." ”

"Almost. Gu Chen didn't say too specifically, but while following Zhang He forward, he found that a cordon had been drawn at the door of the No. 9 windmill room, and the whole person was instantly stunned, and his legs stopped there.

"How...... What's the matter?Senior Brother Gu?" Seeing Gu Chen's abnormal mood, Lu Weiwei couldn't help but look at her curiously.

"Wan Xin?" Gu Chen frowned, and after thinking about it carefully, he looked up at the house number: "That's right, this is Wan Xin's family, and she only rented here half a year ago." ”

"Wan Xin?" As soon as Gu Chen heard that he could even call out the names of the residents in the No. 9 windmill room, everyone present couldn't help but be surprised, feeling that Gu Chen was far away in the Furong Branch, but he knew the scene better than all the police officers at the scene.

......

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