Chapter 36 introduces the case and dissects fingerprints, identifies the scene, and says precautions

The meal was not dispersed until ten o'clock in the evening, and everyone ate very happily.

When I went home after dinner, my father-in-law and mother-in-law were watching TV, and after calling Wanfang, everyone sat in the living room, and I said:

"Mom, Dad, Fang, the case is solved, the murder case is solved!"

"Son, tell me about the situation, tell me about the situation!" Father-in-law's happy voice.

I handed my father-in-law a cigarette, then lit one myself, and said:

"After lunch, I immediately rushed to the office, called out the fingerprints of the murder, and continued to watch, and when I saw a hundred, there was still no result. I analyzed it, and the sound I heard was after two sounds, and if one was fifty, then two sounds would be one hundred, plus the fifty I had seen before, so it should be the one hundred and fifty.

I directly called up the 150th fingerprint for inspection, first of all, the pattern and finger position were aligned, and my heart was immediately raised, and I immediately compared the details and features. At the beginning, we entered 9 detail features into the system, and after I compared, a total of 12 detail features were found, and under normal circumstances, we can identify 7 to 8 detail features, and 12 are matched at once, so I am very sure that this person is the perpetrator.

Later, I called Captain Zheng again, and he further double-checked and made sure that I was correct.

This is a murder case, it was a murder a few years ago, and all the personnel of the criminal investigation brigade were notified, and even Director Tang was alarmed. In the conference room, I gave a detailed introduction to the fingerprint identification and affirmed the identification conclusions.

In the afternoon, we rushed to Dalong Town and arrested the perpetrator Wan Jinghe.

When he came back for a review, Wan Jinghe quickly explained the process of committing the crime, he was hunting at night, passing by the victim's house, and accidentally found that the victim was sleeping at home alone. In the process, he also used a shotgun to threaten the victim, and later, the victim took advantage of his inattention, and bit him, he was annoyed and angry, and was afraid that the victim would shout for help, so he strangled the victim to death by choking his neck.

The crime process confessed by Wan Jinghe is completely consistent with the process of our technical team's on-site investigation.

Moreover, after Wan Jinghe was fingerprinted not long ago, he was restless at night and told his wife about the process of committing the crime, so his wife is also a very key witness. We will take Wan Jinghe to the scene tomorrow to identify him, and the investigation of his wife will also be carried out simultaneously.

That's the general way things are. ”

Wanfang filled my cup with water and said with a smile:

"Aliu, you're awesome! You've solved the murder a few years ago! ”

"Haha, why are you saying the same thing as Director Tang!" I replied with a smile.

"Son, you're amazing!" The mother-in-law said happily.

"Mom, it's not a big deal, it's a work idea here, and it's inevitable that such a situation will occur." I replied.

"Son, how is it inevitable?" The father-in-law asked.

"Dad, you see, I was transferred from the Jiangnan Police Station to the Criminal Investigation Brigade to engage in technical work, just to solve the problems encountered in solving the case from the perspective of evidence, you know this situation. And fingerprints are a key to evidence, and fingerprints are known as the king of evidence. Some time ago, we carried out a city-wide fingerprint taking battle, entered a lot of fingerprints, these fingerprints were entered and we compared the fingerprints extracted from the scene, more than 30 people have been compared, and the fingerprints extracted by our scene, after we cleaned up, a total of 80 cases 136, I think with the collection of more fingerprints into the warehouse, we will definitely crack more cases, set off a case-solving **. In so many cases, there are two homicides, which can only be said to be an inevitable accident. ”

"Exactly as you say." The father-in-law nodded and smoked a cigarette.

"Son, do you have any plans for the next step?" The mother-in-law asked.

I nodded and said:

"The first is to seize the opportunity. We must do everything possible to increase the extraction rate of traces and physical evidence from on-site investigations, and extract as many fingerprints and other traces as possible. This is because, first, solving the case through fingerprint file checking is at a good time to rise, and we must catch this point; Second, with more fingerprint checks, the perpetrators will inevitably know our way to solve the case, and they will inevitably take corresponding protective measures when committing the crime, such as wearing gloves for protection and camouflage. Therefore, after the fingerprint check, it will turn into a trough of fingerprint checking. This is my analysis of the situation.

The third is to expand the scope of fingerprint checks. We can't be limited to our technical team to investigate the fingerprints at the site, because I found that there are still a large number of fingerprint checks, because this kind of thing needs to be done manually, the workload is very large, and the technical team rarely does it. At the scene, as long as the fingerprint of the co-investigation is entered into the fingerprint query system, the manual comparison can be carried out, which greatly reduces the workload. I suspect there should be a breakthrough in this area as well.

The third is the bright vision. This time, I suggested that junior high school and high school students also be fingerprinted, and in many police stations, in order to complete the task, basically everyone passed the border, and even elementary school students were fingerprinted. In this group of people, as they grow older, many of them will commit crimes, and these people do not have a deep understanding of fingerprint checks, do not know, and have not learned to protect and disguise, therefore, we can extract the fingerprints of the perpetrators at the scene, which is compared with the system, and will definitely usher in a new ** to solve the case.

That's what I thought. ”

"Very good, very good, it seems that you are not obsessed with fingerprints, you are very aware of the role and limitations of fingerprints, which will definitely be beneficial to your future growth. Son, I see you keeping a clear head in the face of victory! The father-in-law praised.

"Old Ke, how did I find that you are impressing me more and more!" The mother-in-law said happily.

Everyone burst out laughing.

"And what about that?" Wanfang said softly.

"Even if there is a ghost, she also kindly reminded me and asked me to help her take revenge! There's nothing to be afraid of! I replied.

"Son, this kind of thing is the result of your thinking and thinking, you don't care about these things, work hard, work hard!" The father-in-law said solemnly.

I nodded.

"Son, believe in positive energy and believe in justice!" My mother-in-law also encouraged.

"Then I'm not afraid!" Wanfang said in a louder voice.

We laughed again.

Sleeping at night, I teased Wanfang and said:

"Are you really not afraid?"

"To be honest, I am still a little scared in my heart, but my mother said that I must believe in positive energy and justice, I think there is nothing to be afraid of." Wanfang replied.

"This is my wife's momentum!" I commend it.

Wanfang hugged me tighter, and the two of them went into a frenzy.

The next morning, the Zhang brigade organized a large group of people to escort Wanjinghe to identify the scene.

Along the way, the vehicle traveled through the mountains, the mountains were full of verdant green, there were many flowers blooming in the mountains, and the air was fresh and the people's spirit was very good.

In the car, the team leader warned Wanjinghe to pay attention to the matters, the car to Siping Town, Hulu Village, Caijiawan all stopped, Director Cai saw our car arrived, immediately walked over, everyone simply greeted the meeting, and introduced the witness village secretary and village head.

Brother Crazy and Ke Daxia escorted Wan Jinghe down from the car, holding one left and one right, Xiao Ke and Xiao Cao were busy recording and taking pictures, and several people from the police station were maintaining order, and others were following behind.

The team moved slowly along a small river, and after a short time, they heard a cry, the kind of heart-rending cry, and gradually the cry grew louder and louder.

In front of a house, the team stopped, and I knew that I had arrived at Cai Mingfen's house.

Sure enough, as Captain Zheng introduced, Cai Mingfen's house is far away from Wanzi and stands there alone, and this kind of house far away from Wanzi does have a certain risk.

It is a four-room adobe house with a blue-gray roof and a path leading up the hill in front of it. In the middle of the hall sat a woman, crying, a few more women talking, and next to a man with his head bowed and smoking.

When she saw our party approaching, the woman who was sitting in the doorway, crying, stood up and cursed loudly:

"You kill a thousand knives, you go to hell, we provoked you?! Why did you kill my girl? I'm fighting with you! ”

As soon as she finished saying "fight with you", the man next to her, who had been smoking with his head down, suddenly stood up, threw the cigarette butt in his hand on the ground, and rushed towards the Wanjing River, and the police at the police station immediately stopped the two and said loudly:

"Lao Cai, Lao Cai, don't get too excited, the law will punish him severely!"

"My daughter has been killed for so many years, and today she can finally look at her! Let me go, I'm going to beat him to death!" The man broke free, crying.

The village party secretary and the village chief also rushed forward to do their work, and half an hour later, the two were persuaded to go to the side, and the other people who were watching the excitement were also persuaded to leave by the police at the police station.

After clearing the scene and the official identification began, Wan Jinghe first walked to the window on the east side of the house and whispered: "I, I, I, I saw that woman sleeping alone in the house here." ”

The window is low from the ground, ** as long as you raise your head slightly, you can see the situation in the room, the window frame is damaged, although the window is installed with glass, but there are several pieces of glass missing, and the sunlight is directly into the room.

After the window was recognized, Wan Jinghe took us to the back of the house, and to the back door, which was a split wooden door, leaving a large gap between the door panel and the door frame, Wan Jinghe put his hand into the gap and easily grabbed the door.

After entering the room, Wan Jinghe took us directly into the east room.

The light in the room is dark, the interior furnishings are relatively simple, there is a bed in the northeast corner, ** a lot of sundries are piled up; There is a wardrobe in the northwest corner, and the door is ajar; There is a table in the middle of the west wall, on which are placed mirrors, combs and other miscellaneous items. There was a layer of dust on the table, and it looked like it hadn't been cleaned in a long time. The floor of the room is earthy, no wonder the glass slipped and did not break, so it was possible to extract the fingerprints of Wanjing River.

Wan Jinghe stood in the middle of the room, pointed to the table, and said softly: "There used to be a glass cup on this table, but now it's gone." ”

No one answered him, no one spoke, only the sound of photographs and the flashing of flashes were heard in the room.

Wan Jinghe walked forward, walked to the side of the bed, and continued to whisper:

"That woman was sleeping here at the time, with her head facing the wall, and there was no such thing at the time."

After determining the location, Wan Jinghe demonstrated the entire crime process in **.

After all the identifications were made and the others were gone, I left Xiao Ke and Xiao Cao and said:

"Flip it over and see if there are any color photos of the victims."

Without saying a word, the two of them rummaged through the drawers of the cabinet and the table, and soon found several photographs, all but one in color, all of which were black and white. There are many places in the color photographs that are yellowed, and in some places the color is peeling.

In the color photo, Cai Mingfen has black hair, two braids, a pair of beautiful big eyes on her ruddy face, and a smile on the corner of her mouth. A plaid shirt with black pants and a pair of black leather shoes on his feet. The whole thing feels youthful and bright.

I took the camera from Xiao Ke's hand, and silently said in my heart, "Your revenge has been avenged, rest in peace!" Then, take a picture of the color photo.

When we came out of the room, when we went outside, Team Zhang was waiting for us, and we continued to lead the way by the Wanjing River, and along the path behind the mountain, we began to go up the mountain.

"Report to the cadre, I really can't remember where I was on the mountain at that time, it was dark at that time, I was nervous, and I didn't pay attention." Wanjing said as he walked.

"What are you rambling about, let's talk about it first." The voice of the madman.

The mountain is not high, and soon it is halfway up the mountain, and Wanjing River has come and gone several times, but it is not sure where to stay after committing the crime.

After discussing with us, Team Zhang took Wanjing River down the mountain.

On the way down the mountain, standing halfway up the mountain, I took a serious look at the situation of Caijiawan, a small river passes through the middle of the bay, and on both sides of the river are houses, the houses are scattered, but they are all relatively old, mainly blue-gray tiles.

When I went down to Cai Mingfen's house again, I called the village party secretary and the village head, and then called Cai Mingfen's parents to me and said.

"This is Captain Li of the Criminal Investigation Brigade." The village party secretary introduced.

Cai Mingfen's parents nodded, as if they were greeting.

I opened my mouth and said:

"I understand your current mood and hope that you will not be too sad and take care of your health. Fortunately, the case of your daughter's murder is now solved, which can be regarded as a comfort to her.

I would like to remind you of a few points and hope that you will take precautions for safety. The windows of your house are too low from the ground to see the inside from the outside, so I suggest you install curtains; Besides, your front and back doors are relatively easy to open, and I want you to strengthen them. Also, I see that your house is still a certain distance from the other residents of Wanzi, so it is best to have a dog to help you guard the door.

Do you know what I mean? ”

The two men nodded vigorously.

After all the identification work was completed, we said goodbye to Director Cai and the branch secretary and others, and set off for the county seat.

Team Leader Tan and Brother Crazy and others directly sent Wan Jinghe to the detention center for detention, and we went back to the team directly, Team Leader Ke has already arrested Wan Jinghe's wife, and the review is basically completed, and the formalities are being handled and ready to be detained.

I took another time to process Cai Mingfen's color photos, and after photoshop, a clear, complete photo appeared, and I saved the photo on my computer.

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