Solving the case: Combining the police dog's olfactory genes at the beginning

The first thing he did when he got home was to give Wu Yan the 3,000 yuan given out by the institute at noon. When Wu Yan heard that Luo Fei said it was the 3,000 yuan rewarded by the institute, Wu Yan immediately took the money with a smile.

Seeing that it was almost time for house viewing, Luo Fei and Wu Yan went to Hongtianba and met Zhang Haiyang's daughter-in-law's classmate, Zhang Qian, a pretty woman in her forties who was already waiting there.

After getting to know each other for a while, Zhang Qian took Luo Fei and Wu Yan to see the house.

The house is in Hongtianba, not in the county town. According to Zhang Qian, the owners of the house are an elderly couple. They bought this house to live in it for their son until he came back. However, after graduation, their son worked outside and got married. So the old couple wanted to rent out the house.

The house has four bedrooms, one living room, one kitchen and one bathroom. The area is large enough. It is well-decorated and has all kinds of home appliances. There is no need to buy any more. Wu Yan was very satisfied after seeing it. She felt that everything about this house was good, but there were One thing is that the house price is a bit expensive.

Luo Fei also thinks this house is good. It is not easy to find such a suitable and affordable house, so he plans to rent it.

After discussing with Wu Yan, she persuaded Wu Yan, and after some bargaining with Zhang Qian, they finally rented the house at a price of 1,150 yuan per month, but the premise was that the rent for half a year was paid at once, which was very important to Luo Fei and Wu Yan. Of course it's not a problem for them. They want to rent for a long time so that they don't have to find a house to move in the future.

The contract was signed on the spot and half a year's rent was paid. Then Zhang Qian gave the room key to Luo Fei. After renting the house, all she had to do was to move in.

It happened that the next day was Saturday and Luo Fei didn't need to go to work. Luo Fei and Wu Yan discussed it and decided to move on Saturday.

We originally planned to find a moving company, but unfortunately the prices they found were too high. Luo Fei and Wu Yan were reluctant to spend the money, so they finally decided to move by themselves. Luo Fei asked Wu Wei to borrow his pickup truck, and Wu Wei learned that Luo Fei was going to move. , offered to help; the second aunt also took the initiative to ask for leave to help.

So on Saturday, Luo Fei, Luo Hao, and Luo Xiaoxiao were responsible for moving, Wu Yan and the second aunt were responsible for organizing, and Wu Wei was responsible for driving the pickup truck, and the vigorous moving operation began.

By the time I finished moving the things from the cement factory and tidying up the new house, it was already four o'clock in the afternoon.

In order to celebrate moving to a new home, the hot pot for dinner cost more than 80 yuan per person, and a meal cost more than 600 yuan. Wu Yan didn't say much in the hot pot restaurant, but when she got home, she complained that the price of the hot pot restaurant was too high, saying I will never eat there again.

After moving to a new house and finding out that they had one room each, Luo Hao and Luo Xiaoxiao seemed very excited. They were very positive and enthusiastic when moving.

At 9 o'clock in the evening, Luo Fei was lying on his bed, holding a book "Psychological Criminology" in his hand.

Suddenly the cell phone rang, it was Zhang Haiyang, Luo Fei's master.

Luo Fei was a little confused. Master Zhang Haiyang called him at this time. Did something happen?

Sure enough, Zhang Haiyang called Luo Fei and asked Luo Fei to go to Longxugou No. 1 Middle School immediately, saying that a robbery had occurred there.

Upon hearing this, Luo Fei quickly put down his book, put on his shoes, said something to Wu Yan who was still packing things in the living room, went out, took a taxi and rushed to Longxugou.

When Luo Fei arrived, Zhang Haiyang, Zhou Suo, and Wu Wei were already there, and there were also a few passers-by watching around.

Zhang Haiyang was questioning a woman in her twenties, stylishly dressed but with messy hair. As expected, the woman was the target of the robbery.

"Ms. Zhou, what was in your bag that was robbed? Are there any valuable items?" Zhou Weimin asked while taking notes.

"One thousand dollars in cash, an iPhone, a lipstick, and a bottle of sunscreen spray." The woman responded calmly.

"Ms. Zhou, if you see these two boys who snatched your bag again, can you recognize them?" Zhou Weimin asked the woman.

"They snatched my bag and ran away at once, and the light here was very dark, so I didn't even see what they looked like."

Hearing this, Zhou Weimin frowned.

At this time, Luo Fei also learned the general story from Wu Wei. The woman was a teacher at No. 1 Middle School. At about 8:40 in the evening, after playing mahjong, she rode an electric car back to No. 1 Middle School. Right here, a boy suddenly came from A boy jumped out from behind the corner, startling her. She braked immediately and was about to scold the boy when another boy jumped out from behind, grabbed her bag and ran away along the diagonal path.

She wanted to chase him, but she saw two people on the other side and didn't dare. After a while, the two boys ran away and disappeared. Only then did she call the police.

After Zhou Suo and the others arrived, Liu Haiquan and Zhang Da immediately chased the two boys in the direction where they escaped.

Luo Fei took a look and found that the place where several people were robbing happened to be around a corner, which was a blind spot. Although there were street lights here, they were too dim and could barely illuminate the road. If you want to see people's faces clearly, unless they are close enough, Otherwise, you won’t be able to see clearly at all.

"Then what clothes were they wearing at that time, and how tall were they approximately? Can you tell us in detail?" Zhou Weimin frowned and continued to ask.

The female teacher thought for a while and then said: "The boy who jumped out was wearing a white T-shirt. He is about 1.72cm tall and is about the same height as the policeman next to you." The woman pointed to Wu Wei next to her.

"The other boy was wearing a yellow T-shirt. He was shorter than the boy in the white T-shirt, but stronger than the boy in the white T-shirt. It was so sudden at the time, and this is all I can remember."

After asking almost everything he wanted to know, Zhou Weimin asked Wu Wei to send the victim home.

"Hayang, Luo Fei and the three of us will take a closer look at the scene to see if there are any useful clues." After Zhou Weimin finished speaking, he took a flashlight and carefully inspected the scene.

Luo Fei did not bring a flashlight and shared one with Zhang Haiyang.

"This is where the boy in the white T-shirt jumped out." Zhang Haiyang used a flashlight to illuminate a poplar tree on the side of the road and explained to Luo Fei next to him.

After looking around, they didn't find anything. Then the two of them came to the other side where the boy in the yellow T-shirt was hiding, but unfortunately they didn't find anything.

"Huh!" Just when Luo Fei thought he wouldn't find anything, he found a small wad of crumpled toilet paper not far from where the boy in the yellow T-shirt was hiding.

Luo Fei went over to put on his gloves and picked up the small ball of toilet paper. He found that his nose was not dry yet. He looked at the hiding place of the boy in the yellow T-shirt. Luo Fei guessed that the small ball of toilet paper was probably yellow. T-shirt boy opened his nose and left tissue behind.