Criminal Investigation Notes

"The male owner of this family, whose surname is Zhou, is called Zhou Chu state. The dead are his mother Chen Cuihua and his wife Yang Li. This morning, someone heard a scream in their house. When they saw that the door was half open and there were people lying inside, they called the police. " Zhang Dahai introduced them as he led them in.

Lin xiuran followed him into the door. Song Wen and Lu Si Yu also took gloves and shoes and walked into the courtyard. There were three people standing in the yard. A middle-aged man with glasses took the forensic investigation box. A little fat man was taking photos. There was a little policeman with acne. He was afraid to move forward.

Zhang Dahai said: "Li De is the forensic medicine of our county police station. He has also dealt with Lin forensic medicine. The physical evidence Xiao Wu, the small criminal police, surnamed Meng, should be called Xiaomeng."

Lin xiuran looked at it. Obviously, the yard was the scene of the crime. He asked, "have you taken all the photos?"

Zhang Dahai nodded with a smile: "it's all done."

On the ground near the door, there were two bodies, a man and a woman, both of whom were about 30 years old. It should be Zhou chuguo and Yang Li.

Now it's summer, they don't wear too much. The faces of the two corpses turn white, and the corpse has formed. The corpse presents a strange and rigid posture. The buttons on the woman's body are scattered, and a man's shoe falls aside. The left hand of the male corpse and the right hand of the female corpse are tightly pulled together. On the right hand of the male corpse, there was a burning burn mark, which was obviously an electrical injury.

Lin xiuran looked at a few eyes and slightly frowned: "have you moved these two bodies?"

Standing in the yard of the forensic Lao Li was asked by him a Leng, looking at Zhang Dahai as if for help. He didn't want to move the two men, but Zhang Dahai gave orders when he arrived in the morning.

After listening to Lin xiuran's question, Zhang Dahai had to explain in a hurry: "these three people were all dead when we arrived. At that time, Zhou chuguo's hand was still on the door handle. We cut off the electricity. In order to open the door smoothly, we pulled his hand down Nothing else moved. Oh, by the way, we didn't unfasten the button. "

"The button should be caused by struggle. It's better not to move the button in case of such a situation in the future. We can deal with it after we come." Lin xiuran squatted down and roughly checked the two bodies. He looked at the electric spot on the palm of the man's corpse, and felt a little stiff. He said, "the time of death is between 6:00 a.m. and 8:00 a.m., which depends on the autopsy results. The cause of death should be electrocuted."

After saying that, he got up again and went inside. Now, after a whole morning's sunshine, there was less water in the yard, but the water stains were still there. In the middle of the courtyard, there was an old woman lying on her stomach. She should be Chen Cuihua, the mother of Zhou Chu state.

Lin xiuran went to take a detailed look. He lifted the old man's hair and looked at the old man's face. The old man was lying on the ground in the water. It was possible that he met him when he fell down. There was blood on her forehead. Her face was gray and her eyes were half open. The posture of lying down was like a ball of meat spread on the ground. Because she was electrocuted, her fingers spasmodic, as if the animal's claws tightened, trying to grab something.

"Now it is confirmed that it is a murder. The murderer is very familiar with the surrounding conditions and should be acquaintances. You'd better apply with the above authorities and send police to investigate the nearby stations to prevent the suspect from escaping." Song Wen said, wearing gloves, "people in the village should also pay attention to the next trend."

Zhang Dahai thought of this ring, his face changed slightly, took out his mobile phone and said, "I'll call right away."

Song Wen can see that Zhang Dahai's perfect words are actually a mallet, which can't be expected. The little policeman and the physical evidence are obviously inexperienced. Maybe the dead have not seen a few. He instructed them to do the basic site investigation. Then he turned to Zhang Dahai and asked, "what happened in the village? Is the village head here?"

"Well, don't mention it. The old village elder had a stroke a year ago and just died two months ago. There are several people in the village who are fighting for the position of village head. But those people usually fight fiercely, really have an accident one by one. Now it's the branch secretary's agency business. When you didn't come in the morning, the secretary came and told him to investigate the case and cooperate with the village. " Zhang Dahai took out a cigarette from his pocket and handed it to Song Wen.

Song Wenyi waved his hand: "I don't smoke."

Zhang Dahai was still reluctant: "come here, don't mention it. Although this cigarette is not as expensive as you have there, it's also very good to smoke."

Song Wen frowned mercilessly: "this is the scene, you want to smoke outside."

Zhang Dahai just gave up, oh, glumly pinned the cigarette behind his ear.

Lu Siyu knows Song Wen's character. In life, he will give this kind of old man due respect. However, as long as he is at work, Song Wen will become serious. If anyone does a bad job, he will not be able to live with him. Regardless of the other party's qualifications and age, he will not give him face at all. He should let Song Wen flatter his horse's hooves Give him a lesson.

Then Song Wen asked Zhang Dahai, "what are the occupations of the dead?"

Zhang Dahai said: "Chen Cuihua has been idle at home for a long time. Zhou chuguo is the accountant in this village. Yang Li has been farming all the time, taking care of his family."Song Wen nodded and went into the room to have a look. Chen Cuihua lived on the first floor and Zhou chuguo and his wife lived on the second floor. The family was obviously unprepared for bad luck, and there were leftovers in the kitchen. From the outside, the house of this family is well built and should be well-off. But somehow, the layout of the house is very simple and the table is full of vegetables, which seems to be in short supply.

"There is no sign that the house has been turned over. There are no signs of outsiders entering the house. The murderer did not enter the courtyard at all. The money on the table at home has not been lost. It is not for the sake of money. Everyone's clothes are still complete, not for lust. It should be for revenge or other reasons. He just wants the family to die." Song Wen looked at the scene as he spoke.

Lu Si Yu nodded: "this case is definitely not accidental, but the murderer after careful preparation and planning, he is waiting for such a heavy rain." The way of electrocution can make the murderer invisible if he doesn't enter the door. It is easier to hide the murderer than other means.

"Last night, it rained from six to eight, and after eight thirty it stopped completely. So the wire should be placed between 8:30 and 7:00 the next morning. The murderer knew that if it rained heavily, there would be water in the yard. " Song Wen said that he went back to the door and opened and closed the door: "the electricity is directly connected to the iron door, and the threshold is relatively high. When the door is not opened, the yard is safe, and it is impossible to detect the wire connected to the door. It should be Zhou chuguo who came to open the door in the morning. After he was electrified, he couldn't get rid of it. Yang Li went to pull him, but it was stuck together. She stepped on the water in the courtyard, which led the electricity to the courtyard. The whole courtyard was electrified. Chen Cuihua, who heard the sound, was also killed by the electricity. "

This family of three, completely did not expect their own iron door as a murderer's weapon, in this morning died.

Lu Si Yu lowered his head to record the scene of the morning in his mind. The electric arc crackled in the yard, and the three people even had no time to scream and convulse. They soon did not move. The feeling of electric current hitting the body is a kind of unbearable tingling. It is like a burning needle pricking into the skin, like a caterpillar crawling into the body quickly along with the flesh and blood, until the connected current hits the heart, causing cardiac arrest.

After Lu Si Yu marked each specific position measurement, he frowned slightly, looked at the finger with gloves, which was inconvenient to bite, opened his mouth and held the pen in his hand. Who has such a great hatred for this family?

After reading the outside of the house, Lu Siyu walked into the room. His eyes fell on a book and opened it casually. He found that it was the bookkeeping book of Zhou Chu state. Every account on it was clearly remembered. Every account was recorded in different colors because of various trivial matters of life. There were several books on the shelf of this bookkeeping book. There is a biscuit box beside it. Lu Si's pragmatic hand opened it and found that there were various bills in it. Each one was folded squarely and neatly. He looked at the earliest bill, which was actually a few years ago.

“…… Look at this height, the murderer should be over 1.75 meters tall. He is a man. At least, the one who connects the wires may be a man. The murderer should know the family of the dead. Only a familiar person can know the location and situation of their home, know how to pull a call and where to tie it. The murderer has a certain knowledge of electricians and may have completed the operation with insulating gloves. " Song Wen quickly made a judgment. Then he looked at the door and asked Zhang Dahai, "has the evidence extracted the footprints at the door?"

Zhang Dahai said: "Captain song, as you know, it rained heavily last night, and the people who reported the case this morning also watched at the door. There are not many valuable traces."

Song Wen didn't listen to his bluff and thought, "No. It rained last night. The soil at the door was wet and the terrain was relatively high. It was easier to leave footprints. Moreover, if the murderer wants to install wires on the door, he needs to be close to the shutter of the door. That angle should be a dead angle, and the crowd will not step on it. "

Song Wen went to the door and squatted down. He saw two footprints stacked together at that position. The pattern of one of the footprints was obvious. Song Wen looked familiar. Then he took a little anger and turned to look at Zhang Dahai. "Team Zhang, this is your shoe print."

Zhang Dahai looked at it, and sure enough, he stepped on the same footprints. A big face turned red, "ah, that This Maybe I didn't notice when I looked at the wires in the morning... "

Zhang Dahai boasted that Haikou was well protected. As a result, Lin xiuran and Song Wen picked a thorn and destroyed important material evidence, which was no less than a slap in the face. He took the yard as the scene of the crime for granted. He didn't think about it carefully. In fact, the killer didn't come in at all. He only stayed at the door.

Although Song Wen was angry, he had no way to deal with this situation. We all know that we should protect the scene, but in reality, the scene is often damaged by the informant or the masses who come first, which will cause difficulties in the later detection. The forefoot part of the footprints in front of her eyes was damaged by Zhang Dahai, which was indistinct and unidentifiable. Only one heel remained outside.

Song Wen raised his head and asked, "have you taken pictures here?"

Zhang Dahai just woke up like a dream, called the physical evidence to take photos, and asked the small criminal police under him to extract the measurement footprints.Looking at the figure of a few people flustered, team leader song of workaholic sighs helplessly, this group of pig teammates is really a bit immobile.

Lu Si Yu took a look at the destroyed evidence: "at least there is still half of the shoe print on the back. Take it first, and you can do some foot print screening." He blinked his eyes and tried to peel off the two footprints with vision. After a moment, he opened his mouth and said, "the footprint is about 43 yards, with a thick bottom and wavy patterns on the heel. From this, it can be judged that the man connecting the wire is a man, about 180 in height. According to the position of the two footprints, the man's standing posture is a little bit of toe buckle."

Although Zhang Dahai was a little confused, he also knew the importance of footprints. He scratched his head and said, "I heard that there is an expert in the provincial police academy who can judge who is not whose by his footprints alone. It is very magical."

Lu Si Yu looked up at him and said, "you are probably talking about my tutor."

The footprints of each person are one of the most basic behavioral characteristics. They are related to people's age, weight, height and even their past experience. There are no two identical fingerprints in the world. Even if they wear the same shoes, they can not leave two identical footprints. After retiring from the second line, Wu Qing made a systematic study on the evidence of a series of crime scenes, such as footprints and bloodstains, and published several papers. Lu Si language has also benefited a lot from his study of criminal investigation techniques.

Zhang Dahai rushed to the landing division and accompanied a smiling face: "the famous master gives a good apprentice, then this case should be solved soon."

Lu Si language ignored him, holding the camera to press the shutter continuously.

"Expand the search to see if there are similar footprints in other parts of the village. In the afternoon, the suspects can be delineated and try wearing similar shoes one by one to see if they are the same person. " Song Wen looked at the scene and told him, "when you turn on the electricity, measure the current and voltage when the door is charged. Pay attention to safety when testing. When the test is finished, you can carefully remove it to see where the wire is connected, what brand, how long it is, and what information is on it."

Zhang Dahai bit his teeth and nodded. In Luning County, where he is located, there are only a few homicide cases a year. Most of them are relatively simple. Either there are witnesses or passionate murders. If the number of deaths in this case is large and weird, Song Wen would not have been called here.

Zhang Dahai is used to being rude in this land boundary. Everyone calls him a police officer. Now the chief of the criminal police who is called here does things with great vigour, regardless of his face, which makes him angry and resentful. On the surface, he has to listen to Song Wen.

During this period, Lin xiuran checked the three corpses there. He stood up and said, "on the corpse of Zhou Chu state, there are some traces of fighting under the ribs and knees. Now it is impossible to determine whether this trace is related to the case. Several people almost died by electric shock at the same time. The rest of them have to go to the funeral home to see the autopsy results. Let's divide our soldiers into two ways. "

The car carrying the corpse has been parked at the door. It seems that Lin xiuran is in a hurry. Lao Li and several other people helped Lin xiuran carry the body to the car.

"Let's get in touch at any time." Song Wen finished his speech and waved away Lin xiuran. He looked at the scene and concluded: "a man, about 180 in height, has an acquaintance, has electrician knowledge and has a feud with this family. There was a crime time from last night to this morning. Captain Zhang, this is your territory. Do you think there are any suspects? "

Zhang Dahai was a little afraid of Song Wen and thought, "it seems that there are suspects However, I haven't been back to the village for a long time. I have to check it out. "

Song Wen said: "if you meet the requirements, you should screen them first. If you encounter the key suspects, we will check them one by one."

Zhang Dahai nodded quickly: "well, good. It's simple. I went back to check the residents' data one by one. I think there are about ten people in this village who are in line with these points."

At this point, Lu Si Yu frowned and said, "officer Zhang, I saw a little boy's clothes in their house. You also said that Yang Li has been teaching her husband and children at home, but where has their children gone?"

Speaking of this, Zhang Dahai looked a little embarrassed and coughed: "the couple Zhou and Chu have a son, but it's a bit sad to say. The child of this family drowned in the spring just two months ago."

"So important information, why didn't you say it just now?" After hearing this, Song Wen rejected Zhang Dahai. It is reasonable to say that the information should be told to them when they arrive at the scene, but the result is that he said it only when the Luxi language can see it.

Zhang Dahai was embarrassed: "this You didn't ask

"What a coincidence? Did you drown? " Song Wen frowned and asked again. The family seemed to have been influenced by the God of death. His son drowned two months ago, but the adult had another accident. Although it was an accident, but this time point is too close. Maybe, the accident of this child is not simple, and maybe it has something to do with the current case.

"This Anyway, the child went out to play with his father and lost it. Later, people from half the village went to the nearby area to help find it. Finally, he found it by the river. At that time, just in spring, the river would flood occasionally. Looking at the water that only reached the foot and neck, it could reach the waist of an adult in less than a minute. Maybe the children didn't pay attention to it and caught up with the flood when they were playing"And then what happened? Did you dissect it? Are you sure it was an accident? " Song Wen continued to ask questions.

Zhang Dahai raised the issue and said, "the child's name is Zhou Cong. He is only six and a half years old this year. His family didn't want to dissect him at that time. They said that they didn't want the child to die, but there was no whole body. At that time, we were cautious, or advised to sign and dissect. As a result, when we cut the corpse, it was drowned! It had to be sewn on again. For this matter, Zhou Chu state didn't give me a good look for a long time. "

Afraid of any omission, song Wensheng asked Zhang Dahai: "the family's house looks like a big family from the outside. Why do they feel a bit of a pinch when they come in?"

Zhang Dahai said, "well, that's the custom you don't know here. On our side, there is a saying that you can marry a wife with all your money and sell your daughter happily. On this side, there are few girls and many men of the right age. The price of the marriage market is going up. If you get married once, you can count the dowry gifts and so on. There are also gold and silver jewelry for the woman, and the money for the wedding ceremony. The total cost is several hundred thousand. "

"For your city dwellers, this may be a toilet money, but for the rural people, it's a lifetime savings Many people bite their teeth to get a wife, or even borrow money to marry a daughter-in-law. Some families have sons and daughters, so they sell their daughters and use their betrothal money to marry their daughter-in-law. When they get married, they have to put on wine and feast the whole village. The countrymen have to face up, the wine to Maotai, and the cigarettes to Zhongnanhai. They don't have enough money to pay. They are all paying for marriage. "

"It's the same with my family this week. I built a house and spent most of my savings. A few years ago, in order to marry my daughter-in-law, I spent the rest of my money and paid off a lot of debts. Now I have to live a tight life."

Song Wen sighed: "you look like you are facing the south city. How can the price of marriage be higher than that over there?"

Zhang Dahai said with a smile: "now the more rural areas, the more rules there are. Many girls want to leave here, and they are finally taken away by your city people."

After chatting with Zhang Dahai for a few more words, Song Wen said: "if there is no clue that the death of the child is related to this matter, we'd better investigate the case first, and the rest will trouble police officer Zhang." After finishing this sentence, he pulled the Luxi language and said: "go, it's time for dinner. Let's go to dinner."