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

Hearing this, the woman had a hesitant look on her face.

Yang Su also said with a straight face when he saw this: "Did Zheng Bin come here yesterday? Answer honestly."

"Yes." The woman hesitated and nodded gently.

"What is he doing here?" Yang Su asked suspiciously.

"He came to see me." The woman said hesitantly.

When Yang Su and Luo Fei saw the woman's expression, they knew that the relationship between the woman and Zheng Bin was not simple, but this was not their concern.

"When did Zheng Bin leave?" Yang Su continued to ask.

"I'll be back at half past eleven," the woman replied.

"Remember so accurately?" Yang Su stared at the woman suspiciously.

"Because when Zheng Bin left, my alarm clock rang. I usually go to bed at half past eleven."

Yang Su frowned after asking. If Zheng Bin left the woman at half past eleven, then this would be the same time as Zheng Bin arrived at the crime scene and was murdered.

Then Yang Su looked at Luo Fei next to him. He suspected that the woman in front of him was lying.

From the current point of view, the woman in front of him ended up staying with the deceased. Yang Su felt that the woman must be a serious suspect.

Seeing Yang Su's expression, Luo Fei understood Yang Su's thoughts instantly and shook his head. The woman in front of him had nothing to do with the deceased.

After thinking for a moment, Luo Fei looked at the woman and asked, "Madam, isn't your husband usually at home?"

The woman hurriedly said: "My husband left long ago. If my husband was still here, I would not be with Zheng Bin."

"I want to go to the room to check, okay?" Luo Fei pointed to the room at the back of the shop. As for the second floor, Luo Fei never thought of going to the second floor to check. There was no smell of the deceased on the stairs, which meant that there was no smell of the deceased at all. Went up to the second floor.

"OK."

Luo Fei went to the back room to check. It was a bedroom, but found nothing except the smell of the deceased.

Ten minutes later, Luo Fei and others left the store.

The expression on Luo Fei's face became much more solemn. He originally thought he could find something, but he didn't expect that there were no useful clues at all.

"Luo Fei, do you think that woman just now had nothing to do with the death of the deceased? She was the last person to come into contact with the deceased." Yang Su asked Luo Fei next to him.

Luo Fei shook his head and replied: "Team leader, you also know that I have a very good nose. If the murderer was the woman just now, I would definitely be able to smell her scent at the crime scene, but I am sure that There was no smell of the woman at the scene."

"Well, that's true. You can track the scent of the deceased. If the woman just appeared at the crime scene, you should be able to recognize her." Yang Su nodded.

"Team leader, how should we check now?" Xia Zheng looked at Luo Fei and Yang Su and asked.

Yang Su frowned and had no idea for a while. Then Yang Su looked at Luo Fei and wanted to ask Luo Fei if he had any good ideas.

Luo Fei thought for a while and said: "Team leader, I think the murderer probably killed the deceased for his reproductive organs. Otherwise, it would not explain why we could not find the deceased's reproductive organs at the crime scene, so I am thinking that we are Isn’t it possible to investigate from this aspect?”

"But what did the murderer do with the deceased's reproductive organs?" Wang Lei looked at Luo Fei in confusion.

Yang Su thought for a while and said: "There are some folk customs in Baihe Township and Tianshi Township, saying that if a man is unable to give birth or has a child, it can be solved by taking Gang Pills. Of course, these These are all rumors and they must not be taken seriously."

Luo Fei said: "We definitely know that this is not true, but for people with physical illnesses, sometimes when medical treatment cannot cure them, they will pin their hopes on this kind of folk remedy. As long as there is a chance, they can I will try it with the idea of ​​luck.”

"Would someone really kill people for such stupid rumors?" Wang Lei looked suspicious.

"If there are really people with physical problems, long-term physical defects will cause them to have psychological distortions. Such people cannot be understood with normal people's ideas." Luo Fei explained.

Yang Su hesitated for a few seconds, and then asked: "Luo Fei, what do you think?"

"This is what I think, team leader, if the murderer is really a person with a physical disease, then they must have gone to the hospital for examination. Maybe we can start from this aspect and investigate all hospitals to see how many people with physical diseases they have received in the past year. Male, check one by one?"

"Then the workload is huge. There are eight hospitals in Ningjiang County. One hospital receives not only thousands of men with severe physical problems a year, but I think there must be hundreds. The eight hospitals must have at least a few." Thousands of people." Yang Su frowned.

"So many people to investigate? Just the five of us?" Xia Zheng heard this, and the expression on his face froze instantly.

Luo Fei glanced at Xia Zheng, then looked at Yang Su and said: "Among these male patients, we can further screen out those who are too old or too young, and we can first focus on investigating those in Baihe Township and Tianshi Township. People in the border areas, after all, the saying that taking Gangwan can cure men's infertility and inability to have children is spread most widely there."

After thinking for a while, Yang Su said seriously: "Okay, although the workload is indeed heavy, it is better than doing nothing, but I will report this matter to Captain Zhao first."

After Yang Su and Zhao Donglai finished reporting, Luo Fei and others divided into two groups to investigate eight hospitals in Ningjiang County.

Luo Fei, Wang Lei, and Zhong Jun were in a group of three; Yang Su and Xia Zheng were in a group of two.

After parting ways with Yang Su, Luo Fei took Wang Lei and Zhong Jun to the County People's Hospital, which is the most authoritative hospital with the highest medical level in Ningjiang County.

The three people originally wanted to go to the dean directly, but were told that the dean was on a business trip. Later, I found the vice president in charge of the men's department and explained the reason to him, hoping that the hospital could cooperate.

Knowing that the criminal police team was investigating the murder case, the hospital was still very cooperative. Luo Fei and the others successfully obtained the information and cases of all male patients with severe physical problems in the past year, a total of 432 patients.

Using the same method, Luo Fei and the others went to three other hospitals and copied all the information and cases of male patients with severe physical problems one by one.

The four hospitals where Luo Fei and the others visited received a total of 10,221 male patients with severe physical problems in the past year.

It was already past seven o'clock when Luo Fei and the others returned to the criminal police team after obtaining the information on male patients with severe mental illnesses from four hospitals.

Yang Su and Xia Zheng have not returned to the office yet.

"Luo Fei, Zhong Jun, I've ordered takeout. What do you want to eat? I'll order it for you all. You can just transfer the money to me later." Wang Lei asked impatiently as soon as he returned to the office.

"Braised chicken with rice." Zhong Jun replied.

Luo Fei had just plugged the hard drive into the computer host and was about to check it. Hearing this, he thought for a while and said, "Twice-cooked pork rice bowl. By the way, remember to order one each for the team leader and Xia Zheng. I guess they will also want it." came back."

"Don't worry, I won't forget them two."

Not long after, Yang Su and Xia Zheng came back.

No one in the office mentioned getting off work. Everyone knew that they would definitely work overtime tonight, so it went without saying.

Yang Su divided the tasks. One person was assigned the information and cases of more than 400 male patients. What Luo Fei and the others had to do was to check them one by one and then screen them.

Yang Su's hope is to sift down the two thousand pieces of information to one hundred and then check them one by one. Otherwise, it would be unrealistic to check two thousand pieces of information and two thousand people one by one.

Luo Fei and Yang Su discussed the screening criteria and roughly determined them. They were under sixty years old and over eighteen years old. The physical symptoms were infertility or infertility, and there was no treatment and recovery in the hospital.

After this screening, there are still more than 500 copies left.

At this time, the takeaway arrived, and Luo Fei and the others ate first. During the meal, they did not forget to discuss how to further reduce the food.

Then everyone decided to further filter down by region, focusing on investigating people in and around the county seat and the boundaries of Baihe Township and Hotanshi Township.

After finishing the meal, I sifted through it again, and finally only one hundred and two files remained.

The 102 pieces of information were then divided into regions and distributed to everyone.

In this way, today's task is completed. What Luo Fei and the others have to do next is to investigate one by one based on these one hundred and two pieces of information. This is the real difficulty.

It was already ten o'clock when Luo Fei got home in the evening.

Wu Yan made a bowl of mixed noodles for Luo Fei. Seeing her son working overtime to this point, Wu Yan as a mother felt very distressed.

The next morning, Luo Fei came to the office early, and Yang Su hadn't arrived yet.

After sitting quietly in his position for a few minutes, Luo Fei began to read the information and understand the patient's identity and address information in the information when his mind was completely clear.

According to Yang Su's arrangement yesterday, Luo Fei, Wang Lei, and Zhong Jun obtained forty information files, all belonging to the boundaries of Baihe Township and Tianshi Township.

Yang Su and Xia Zheng obtained 62 information files from the county seat and surrounding areas.

"Looking at the information!" At half past seven, Yang Su walked into the office while eating fried dough sticks and soy milk. Seeing Luo Fei staring at the computer, he walked over and asked.

"Yes, let's find out the person's identity, address and identity information in advance so that we can plan and arrange today's investigation." Luo Fei nodded and answered.

"Yes, this is right, you can continue." Yang Su said with satisfaction. Regarding Luo Fei's positive attitude, Yang Su was already very satisfied with Luo Fei.

At eight o'clock, Wang Lei and Xia Zheng stepped into the office.

At this time, Luo Fei had completely read through the forty files, and at the same time he had some ideas for today's investigation.

At half past eight, Luo Fei, Wang Lei, and Zhong Jun left the criminal police team and headed for Baihe Township.

Baihe Township is more than 20 kilometers away from the county seat. Baihe Township has a total of more than 16,000 people and governs ten villages. Among the information obtained by Luo Fei and the others, 22 patients belong to Baihe Township.

Luo Fei and the others did not go directly to the village in the countryside. The first stop was Shanshu Village.

The data showed that two infertile patients were villagers of Shanshu Village.

He found the chief of Shanshu Village and expressed his intention to come. Then, under the leadership of the village chief, he found two villagers with physical diseases, but neither of them were. Luo Fei knew they were the first time he saw them. Not a murderer.

It was already three o'clock in the afternoon when Luo Fei and the others left Shanshu Village.

The second stop was Liuhe Village, which is adjacent to Shanshu Village. According to the information, there was a patient in Liuhe Village who had a physical disease and was infertile.

They also found the village chief first, and then asked the village chief to take them to find the person, but unfortunately it was not the same.

By the time Luo Fei and the others came out of Liuhe Village, it was already six o'clock in the afternoon.

The reason why it took so much time was because Luo Fei and the others were basically either in a hurry or on the road. The roads in the village were not good, so cars could only drive slowly, and there were even places where cars couldn't pass.

Just like before in Shanshu Village, when the village chief took Luo Fei and the others to find the second villager, because the villager lived too far away and the road was not accessible, Luo Fei and the others walked for a full hour to get there. It takes two hours to go back and forth.

After asking about Liuhe Village, Luo Fei and the others returned to the county seat.

It was about seven o'clock when we rushed back to the county town.

The three of them had a meal and returned to the criminal police team around 7:50.

In the office, Yang Su and Xia Zheng had already returned to the office.

Naturally, the two of them did not gain much today, and in terms of efficiency, the two of them were not much higher than Luo Fei and the others. Luo Fei and the other three investigated three today, and Yang Suxiazheng and the other two only investigated four.

The reason is that they don't have the evil eye like Luo Fei. Luo Fei has the evil eye. He can tell whether the other person is a criminal suspect just by looking at him. Why don't they just ask a few questions to fool Wang Lei and Zhong Jun and leave directly? people.

Yang Su and the others are different. They have to interrogate carefully in order to judge whether the other person is suspicious and whether he is the murderer. In this way, it takes a lot of time to investigate one person, and naturally the efficiency cannot be very high, and There is also a certain risk in this, that is, when you encounter criminal suspects who are particularly good at disguising, it is very likely that they will get away with it.

In the next week, Luo Fei, Wang Lei and Zhong Jun traveled back and forth between the county seat, Baihe Township and Tianshi Township. Basically, they would leave early and return late every day.

After a week, Luo Fei became tanned, Wang Lei became thin and dark, and Zhong Jun became fat and dark.

However, there was no result.

Twenty of the twenty-two pieces of information in Baihe Township have been checked, but there is no murderer in any of them.

The same goes for Yang Su and Xia Zheng. The two of them have completed the investigation of thirty-five pieces of information, but they have gained nothing.

Not only the first group, but even the entire criminal police team had no results. The second and third groups and the technical room also found no clues.

Today is Sunday. Originally, Luo Fei and the others were planning to go to Tian Shi Township. Of the twenty-two pieces of information, only the last two pieces of information from Tian Shi Township were left unchecked.

But just as Luo Fei and the others drove out of the criminal police team, Yang Su called.

Yang Su spoke very concisely and quickly hung up the phone.

Just after receiving the call from the masses, in Wuping Town behind the No. 2 Middle School, a 13-year-old junior high school student died in a field. His head was hit hard with a hard object and his lower body reproductive organs were cut off.

After hearing Yang Su's words, Luo Fei immediately asked Zhong Jun who was driving next to him to turn around and go directly to Wuping Town.

Arriving behind No. 2 Middle School, far away, Luo Fei saw a large group of villagers gathered around and whispering, while the police from the police station were maintaining order.

Stopping the car, Luo Fei and the others walked over quickly.

When they got closer, they saw Yang Su, Zhao Donglai, Yang Mei, Xia Zheng and five forensic doctors from a technical room.

Yang Su, Zhao Donglai, and Xia Zheng were staring at the corpse. Zhao Donglai and Yang Su had solemn expressions. Yang Mei was collecting shoe prints next to the corpse. The forensic doctor was conducting an autopsy.

"Team Zhao, team leader." When he arrived, Luo Fei first greeted Zhao Donglai and Yang Su, and then walked to the body.

A child's body shrouded in black air was lying on its back in the cabbage field in a large shape. It had a very young and collagen-filled face, and there were obvious dents on the right side of the head. His pants and underwear were pulled down to his knees. The reproductive organs of the lower body were gone, leaving only a blur of flesh and blood.

This scene is exactly the same as the scene where Zheng Bin died.

The author has combined the following chapters into one, so as not to update each chapter one by one and affect the reading experience.