National Forensic Doctor

Jiang Yuan and Wen Ming met in the parking lot and got into the car, their expressions were a little confused.

"Should we go shopping together?" Wen Ming asked, "It's a bit weird."

"We are in charge," Jiang Yuandao said.

"Then the specific content of what we are going to do is shopping?"

"Well……"

Wen Ming sighed: "This is how I used to hook up with my girlfriend..."

Jiang Yuan and Wen Ming reconfirmed their looks before saying, "How about finding someone else?"

"Three men going shopping?" Wen Ming's expression was almost uncivilized.

"Mu Zhiyang still has a plaster on his arm. Count him in half, that's two and a half..." Jiang Yuan paused and started to send a WeChat message.

"Are you calling Mu Zhiyang?" Wen Ming's face was full of disgust. Shopping with two and a half men, no matter how you think about it, is worse than shopping with two men.

"I'm calling Wei Yin." Jiang Yuan put down the phone.

Wen Ming was stunned for a moment, then his whole body stiffened: "You actually asked Master's daughter to come shopping with you?"

"Do you know any other female police officers?" Jiang Yuan asked.

Wen Ming shook his head stupidly. Female police officers and so on, where can male police officers usually come into contact with them?

All the male police officers have access to are female men.

After a while, Wei Yin appeared in front of the two of them wearing a white T-shirt.

On the front of the T-shirt is an Astro Boy, which doesn't look too serious. The khaki shorts reached to the knees, the style was very casual, but the exposed calves were white and thin.

"Senior sister." Wen Ming looked a little embarrassed, but actively got out of the car and opened the door.

Jiang Yuan sat in the driver's seat, turned around and handed Wei Yin a bottle of water, and said with a smile, "Sorry, we don't want to go shopping together."

"Do you want to buy something?" Wei Yin looked at Jiang Yuan with a calm and generous look, and said, "I heard that you were in danger yesterday. Are you okay?"

"Maybe I'm scaring myself." Jiang Yuan felt a little embarrassed.

According to the model taught by Master Wu Jun, as a police officer, if you keep making judgments, you will always guess wrong.

Don’t feel embarrassed if you guess wrong. Many times, except for you who remember your previous judgment, everyone else has forgotten it.

Jiang Yuan thought what the master said made sense before, but now it seems that someone still remembers something.

Wei Yin chuckled, looked at the time, and said, "I can only stay with you for two hours. Where do you want to go?"

"Just looking for sneakers." Jiang Yuan said while driving, but when it came to the case, his expression became a little more serious.

Wei Yin saw it and asked, "Is it necessary to break the eucalyptus?"

She has also seen broken footprints and other things.

Jiang Yuan just said "en" and then said: "I can't tell you the specific situation."

"I understand, just say what you can." Wei Yin smiled and said, "If you say it in more detail, we can narrow down the scope of the investigation."

"Just look for sneakers first. When we get to the place, I want to look at the soles of all their shoes."

"This requirement... is actually not low." Wei Yin nodded.

Wen Ming interjected: "Would you like to take a look online?"

"Look later. If you can't find it in the store, look for it online." Jiang Yuan said and explained: "Judging from the suspect's age, he should be more accustomed to buying things in stores."

Jiang Yuan judged the suspect's age from the footprints to be 45 to 49 years old, which would be extended by two years, that is, 43 to 51 years old. But this is the safe age defined by Jiang Yuan, and it is basically possible to determine the suspect's true age, which must be within this range.

But judging from a more radical perspective, Jiang Yuan is more inclined to believe that the suspect is older.

Because judging age through footprints is also affected by the suspect's muscular ability. Judging from the fact that the suspect returned to the crime scene, Jiang Yuan believed that his muscle ability should be relatively strong.

Because people's confidence is undoubtedly affected by their physical condition.

A frail criminal suspect, or even a middle-aged man with average physical fitness, would not easily make the decision to return to the crime scene.

While the three of them were talking, Cruiser arrived at the commercial street of the county town.

Wei Yin naturally became the leader, leading Jiang Yuan and Wen Ming from Nike to Adidas, from Peak to Erke...

In the store, Jiang Yuan didn't do anything, so he asked the two of them and the clerk to take out various shoes and turn them over one by one to look at the soles.

In order to check the soles conveniently, Jiang Yuan always buys two pairs of shoes directly after entering the store.

Soon, the hands of the three of them were full of shoes.

"If you can't find it again, it's time to change shoes for everyone in the team." Wei Yin found it a bit funny.

Wen Ming was also a little anxious and said, "I heard that there seems to be a database for the patterns of shoe soles."

"Well, search for shoe patterns through sole patterns." Jiang Yuan nodded and said: "But there are almost 600,000 sole patterns in the country every year, and only a small part are entered into the database. Even for big brand sports shoes, It doesn’t necessarily mean it’s entered.”

Wen Ming was stunned: "There are so many?"

"There are hundreds of thousands of formal and informal shoe factories across the country." Jiang Yuandao said: "It is impossible to get rid of those small workshops and factories."

Many of the criminal suspects who are still committing violent crimes are those with two low incomes and one high age, that is, low income, low education, and high age. And these people don't go to specialty stores all day long to wear shoes.

Speaking of which, people from an era when violent crimes were common a few years ago are still willing to commit violent crimes. The new generation of young people, when involved in crime, are more willing to commit non-contact crimes such as telecommunications fraud.

Serial rape stories that once appeared frequently are becoming less and less common after the new century.

Wen Ming was silent for a moment and then asked, "How can I check if it's not entered?"

"Just like we are looking now, if we can't find it, we won't be able to find the person through the shoe sample." Jiang Yuan told the truth.

Footprint evidence is actually the trace evidence with the largest volume of physical evidence management in China, and the number has already exceeded that of fingerprint evidence.

But when it comes to database management, footprint evidence is too weak.

Wen Ming sighed helplessly. He was originally looking forward to breaking through again.

Jiang Yuan and Wei Yin looked at each other and smiled. Things like breaking the eucalyptus would not always be smooth sailing.

"There are a lot of people over there, many of them are elderly people." Wei Yin pointed to the front, which was a discount store.

Nowadays, a store that can keep people in the store is definitely doing a booming business. There were several waves of people shopping in this store, which immediately attracted Jiang Yuan and others.

When I got closer, I saw a large number of clothes, pants and shoes in a small store.

There are also sports shoes, which are basically in black, white and gray colors, and then dark blue, which is in line with the aesthetics of middle-aged and elderly people.

Jiang Yuan saw no one to greet him and was not polite, so he turned over his shoes by himself.

After flipping through seven or eight pairs, a pair of gray and white sneakers fell into Jiang Yuan's hands.

The pattern on the bottom completely matches the shoe prints Jiang Yuan extracted from the scene.

Jiang Yuan calmly glanced at the brand: Bi Mawei.

It feels quite foreign, but it doesn't feel like a shoe factory that needs auditing very much.

"Has anyone bought your pair of shoes before?" Jiang Yuan asked this question because he suddenly thought that the shoes at the crime scene were very new, and the brand was so unknown...

The clerk frowned: "There are so many people here every day, how can I remember to come here?"

"Are you the only one in the store?" Jiang Yuan continued to ask.

"There is another one that has gone to the warehouse." The clerk was busy doing the checkout and then asked, "What do you do?"

At this time, Wen Ming looked at Jiang Yuan with a questioning look. When Jiang Yuan nodded, he walked closer and said, "Call that clerk back."

As he spoke, he showed his police officer ID.

When the clerk saw it was a police officer, he was first panicked, then overjoyed, and asked, "Can I take a photo?"

Wen Ming frowned and said, "You can take pictures. You need to call your colleagues over first."

"Okay, okay." The clerk agreed and asked again: "Did she commit a crime? What did she do? I'll just say that this girl is full of tea. She must have gotten into trouble..."

"Where is the surveillance video of your store?" Jiang Yuan interrupted the clerk's narrative.

"Just...here." The clerk pointed to the cashier.

"The last day you sold these shoes, do you remember?" Jiang Yuan confirmed that the monitoring was stored on the hard drive of the host computer, and then continued to ask.

The clerk looked at the KPMG shoes and said, "Then I have to check the account?"

"Check it." Jiang Yuan stood and watched.

The clerk said from the cashier. The sales of this store are very good. They can sell dozens or hundreds of items every day. It is considered the best store in the neighborhood.

The clerk flipped through the pages quickly, pointed with his hand, and said, "I sold one the day before yesterday. It comes with clothes, pants, and socks. It's quite rare to buy a complete set..."

"You didn't sell it?" Jiang Yuan asked.

"Well, my colleague sells it." The clerk replied.

Jiang Yuan then patiently waited for the clerk's colleague to come back, asked similar questions again, and asked her to point out the person on the surveillance video.

The clerk's colleague was a little prettier and better dressed. After flipping through the monitor on the computer, he suddenly slapped his forehead and recalled: "He was sitting at the door and asked me to bring him some shoes. No. walk in."

"What did he use to pay?" Wei Yin asked helpfully.

"Cash, I remember, this guy is quite weird." The pretty clerk smiled pleasantly.

Jiang Yuan and Wen Ming looked at each other and felt that something was funny.

Jiang Yuan asked first: "Did he touch anything at that time? Did he wear gloves?"

"I wasn't wearing it... maybe. I don't remember where I touched it." The pretty shop assistant tilted her head in embarrassment.

The ordinary store clerk gave her a disdainful look and said, "You are not allowed to hold a stool or anything when trying on shoes."

"Then I don't remember. How many people sit on this stool every day?" the pretty clerk replied rudely.

Jiang Yuan looked at the small red square stool at the door and knew that nothing could be wiped out.

but……

"There should be surveillance in the shopping mall." Wen Ming thought of it without Jiang Yuan reminding him.