I don't want to solve the case when I'm a little policeman.

The bookshelf that Zheng Heming refers to contains not a few children with decayed deciduous teeth, but hundreds of them. The time for collecting photos is from when the children change their teeth when they are five or six years old to when the children are about ten years old.

Basically, I took a photo in the first half of the year, and in the past five years, I have accumulated a lot of photos.

"These photos were collected for me by my friends from all over the country. Now people talk about health, and there are not many children with dental caries. Over the years, with the help of friends, I have collected such a little material."

This is the same as making aging software. In addition to writing programs, the most important thing is to collect more people's looks. Only when the base is large, the software algorithm will be more perfect.

Xu Zheng roughly flipped through the pages, "Mr. Zheng, although these materials are few, they are available in most parts of the country. Even if they are not representative, they can still give me a direction, which is very good."

To be honest, Xu Zheng is very envious of Zheng Heming. Friends from all over the country insist on providing him with materials for five years without compensation. He can't do this. , There are very few friends in other departments.

Now that he is working, his classmates seldom communicate with each other, and he seldom speaks out in the wechat group, especially after he was transferred to the municipal criminal police detachment.

Of course, this is also different from the fact that he did not take the postgraduate entrance examination after graduation, and the direction chosen by most of his classmates. There were 42 students in their class, and he was the only one who chose to become a policeman at the police station.

Seeing Xu Zheng pondering, Zheng Heming smiled, pointed to other bookshelves and continued to introduce him: "In addition to these, there are also some other factors on the other bookshelves, such as regional factors, serious illness, disfigurement, snoring, etc. .

Just like dental caries, the collection of materials is relatively small. "

"That's not much, it's more than I imagined. I only realized this problem today, but you started researching this topic five or six years ago." Xu Zheng said sincerely with a look of admiration.

Zheng Heming waved his hand, "What's the use of early research? After so many years, there are still no good results. However, if you join my project this time, I think it is very promising."

Xu Zheng didn't want to put on a high hat, and didn't want to dampen the old man's enthusiasm, so he could only use the procrastination formula, "Mr. How about it?"

"Haha, look at me, I've already forgotten about your upcoming marriage, don't worry, don't worry, it won't be too late to talk about it after you go to work on your wedding leave." Zheng Heming forced a smile, no matter how anxious he is to get married, he can't rush it.

Qi Guangyuan next to him looked at the teacher and clapped his hands and laughed, "You don't know, Xu Zheng will be transferred to the Provincial Office of Chasing Escapes next month, and his office will also be in the Provincial Department. It is very convenient for you to find him if you have anything to do." .”

"Province Chasing Escape Office?" Zheng Heming showed a strange look on his face, "I also often cooperate with them in this department, so, Xiao Xu, I have a heartfelt request, I hope you can consider it."

Seeing Zheng Heming's serious face, Xu Zheng felt a little nervous. This old man wouldn't let him do criminal investigation work, right? Although technical investigation engineers and even senior engineers have very high honor and treatment in the police force, there is no criminal investigation line. Interesting work on.

Besides, he already has advanced analog portrait technology. Even if he works with Zheng Heming, it will be very difficult to upgrade the analog portrait technology to the master level. He does not lack knowledge and talent now, but only lacks experience. He can become a master after all.

"Xiao Xu, this is what I think. My current portrait processing studio provides technical support for portrait processing to the provincial department's escape pursuit office, anti-trafficking office, criminal investigation team and other departments on weekdays.

Aren't you going to go to the Provincial Chase and Escape Office now?
Can I also work on my side at the same time? In terms of administration and salary, I will propose to my superiors to be equal to engineers. What do you think? "

It is very common in the system to hold a formal job concurrently. Many leaders have a series of professional titles. It is entirely possible for Xu Zheng to concurrently work in Zheng Heming's studio if he is working in the Chasing Escape Office.

Since this is the case, he didn't try to be hypocritical anymore, "It's ok, Mr. Zheng, just one thing, you also know that the work of chasing escapees sometimes requires business trips, and I can't tell you about the working hours."

Zheng Heming smiled, "It's all trivial. We work at home or in the office, or on a business trip. As long as we have a pen and paper, we can work anywhere, right?"

"That's true. For the part-time job, I'll trouble Mr. Zheng. If you need me to cooperate, just let me know."

After the two talked about the details of their work, they were ready to start today's official task. Zheng Heming collected materials from no less than a thousand children, most of whom were boys, and girls accounted for only one-fifth. This is because most of the abducted children were boys. reason.

Xu Zheng first chose materials related to dental caries. There are more than 130 growth photos of children in this category, of which there are only more than 20 girls. After thinking about it, he should study the situation of girls first.

According to science, dental caries in deciduous teeth will cause the mesial and distal diameters of the teeth to become smaller or even fall out prematurely, which will force the rear teeth to be pushed forward, so that the newly erupted permanent teeth will not have enough space for growth and cannot erupt in the normal position , causing further malocclusion.

This will cause asymmetry in the development of the child's bilateral face over time, which will affect the occlusion and facial appearance.

Common dental crowding, undercovering, and crooked teeth are also caused by this.

In addition, it will also affect the size of the face. Generally speaking, although most of the caries of deciduous teeth will affect the parts below the nose, the face is a whole. Over time, the whole face will gradually change.

This is what we usually say, this child is crooked.

Xu Zheng lost track of time as soon as he was working. Every time he looked at a picture of a little girl, he used a pencil to draw a picture of the little girl without caries in the baby teeth every year according to the age of the little girl from the teeth changing period to the age of ten. Finally, compare it with her real appearance.

This practice of only considering dental caries in deciduous teeth is indeed not comprehensive, but it can only be done first at present.

After studying more than 20 photos of little girls, he spent another afternoon looking at photos of little boys. After reading, he did gain something, but not much.

Maybe it was because there were not enough materials, or maybe there were too many factors affecting the child's appearance. Later, he took out the photo of Jiang Lanxin's ex-husband and wanted to draw a sketch of their daughter Yan Mo when she was 12 years old, but he felt unable to start.

Confused, perplexed, and clueless, at this moment, Xu Zheng felt his head was about to explode.

"How about it, let's go here first, what about the rest of the matter after you get married and go to work?" Of course, Zheng Heming can't accompany Xu Zheng here to read the materials all the time, he has already studied these materials many times.

Xu Zheng rubbed his face vigorously with his hands, stood up and moved his body, and looked at the studio, "Mr. Zheng, I want to strike while the iron is hot. Tomorrow I will be officially on wedding leave. I want to work overtime at your place tonight. How about it? "

Seeing Zheng Heming's hesitation, Xu Zheng immediately said: "Don't worry, I'm young and physically able to hold on. By the way, I'll call Lao Qi back again and let him accompany me. Don't you feel relieved now?"

"Haha, I'm not worried about the safety of the studio, it's just that if you stay up late like this, you will hurt your body." Zheng Heming's appearance as someone who has come here has popularized the disadvantages of staying up late for at least 5 minutes to Xu Zheng.

It made Xu Zheng want to pass on the six-character mantra breathing method given by the system to him, thinking, if it weren't for this background, who would stay up late for a week in a row.

After get off work in the afternoon, Xu Zheng and Qi Yuanyuan went to the small cafeteria of the Provincial Department for dinner. The guest was Bi Shangxue from the Provincial Anti-Trafficking Office. When Xu Zheng called him, he happened to be there. No, the three of them went straight to the small cafeteria.

It is said that it is a small cafeteria, which is no worse than the cafeteria outside. As expected of the provincial department, the food here is much better than that of the city bureau. Xu Zheng was really hungry. He ate two bowls of rice before talking about the business. Qi Guangyuan simply told Bi Shangxue what he was going to do.

Then he said: "I am going to work overtime tonight to study this topic, but at present I only have the information of two abducted children in my hand. There must be quite a few children that have not been found by your provincial anti-trafficking office. Can you put these children in their childhood? Send me a copy of your photos and basic information.

I am going to try to draw them when they grow up. If I succeed, it means that this topic is very necessary for research. "

Bi Shangxue was drinking old duck soup, and when he heard Xu Zheng's talk about the subject just now, he felt unreliable, because he knew about the subject that Zheng Heming was studying when he first entered the Provincial Anti-Trafficking Office.

After all, the Provincial Anti-Trafficking Office wanted to take photos of the children's growth, and these had to be handed over to Zheng Heming's studio. He also knew that Zheng Heming's research for five years had not yielded any results.

"Zhenger, are you too anxious? Let's not talk about how many years Master Zheng has been studying this subject. Let's talk about Dean Lin from Lu Province. After retirement, he made a big ambition to draw 100 abducted children, but he Now that he has been retired for many years, the police only found a dozen children based on the simulated portraits he drew."

Regarding the matter of Bichanxue, Xu Zheng also knew that the simulated portrait would help the police find missing children, but it was not that great, and it was slightly inferior to the DNA test.

But now, since Xu Zheng has chosen to study this subject, the difficulties of Bichamp's theory can't scare him away.

Seeing Xu Zheng's expression, Bi Shangxue sighed inwardly. This kid is still so stubborn, but he thought again, if it wasn't for Xu Zheng's stubbornness, how could he have found the case where Song Meimei's son was lost?
"Well, since you want to try it, I'll go back to the office after dinner, apply to Director Ye, and send it to you."

Xu Zheng patted Bi Shangxue on the shoulder, "Brother Bi, believe it or not, after you go back to sleep and come to work tomorrow morning, my brother will give you a few credits directly, do you want it or not?"

Thank you for the monthly tickets, bang bang bang, there will be another chapter in a while