Chapter 44 Section 3

call!Si let out a long breath, wiped the sweat from his forehead, and shook the gray remote control in his hand towards Liu, who was walking the grid, "Finally, the puzzle is complete—don't stare at me, I used a transparent adhesive tape." Any small breakage at a crime scene should be restored with scotch tape rather than other more solidified glues, this is to ensure that the direction of the crack can be seen visually and not to damage the fracture that may exist. Trace evidence of it—all of which help determine where, why, and with what force it was broken. Liu drew another △ with no connection at the top on the ground, stood up, rubbed his sore knee, walked over to look at the remote control, frowned suddenly, and looked up at the two Changhong boards hanging on the ceiling. TV, "Why is it not the same brand as the TV?"

It was only then that Si noticed that the restored remote control did not have any Changhong logo, but the English word "xindian" was faintly visible on the battery cover on the back, "Xindian?" Si puzzled, "It should be a miscellaneous brand. ?” Liu picked up the magnifying glass and looked at the remote control more carefully, "It's still very new, including the buttons, and there are no traces of long-term use... What's going on? Think, the initial investigation report in the file folder How do you explain this remote control?" Si flipped through it and said, "It's very simple. I just said 'I found it under the sofa, it should be the remote control TV in the private room'."

"Should?!" Liu suddenly became angry, "There are too many things that should be done! The most should be to suspend the author of this report to reflect on it! How dare you use such words that seem to be sure but actually shirk responsibility!" "Calm down first. Now you are no longer the deputy director of the Criminal Technology Division of the Municipal Bureau, and you can be removed if you want! Maybe at this moment, your standard photo is posted everywhere in the capital, and a reward is offered for you." Si said coldly, "There is a sentence at the back of the dossier that only one person's fingerprint was extracted from the shell fragment of this remote control—Li Jialiang's."

"That's even more wrong." Liu Shenyin, "Singing in the KTV private room, the main control system should be the computer and platform in the control room. The remote control is at most used when turning on the TV. This job The director of the office, Gong Jing, did it, why did Li Jialiang take the initiative to turn on the TV? Still holding the remote control and not letting go?" After thinking for a while, he said, "I looked at the splicing just now, and the integrated circuit board inside is indeed for remote control appliances. But I am confused when you say that. Could it be that the original remote control of the Changhong TV is broken?" If it was dropped, the shopkeeper replaced it with a miscellaneous brand? As for why there are only Li Jialiang’s fingerprints on it, I really can’t figure it out.”

On a whim, Liu pressed the buttons of the remote control one by one. She thought that some special device could be activated, but nothing happened. She sighed in disappointment. There are two most commonly used indoor search modes by the police in our country: straight line search method and grid search method.In countries such as Europe and the United States, police officers use the most relevant search method.The correlation search method refers to the search based on the internal logical relationship among the crime scene, the suspect, the victim and the physical evidence. For example, if you find cigarette ash on the ground of the scene, you have to find the cigarette butt and find the crime through the residual saliva DNA on the cigarette butt. Suspect, you still have to think about why there is no ashtray in this room... This is a search mode for investigation in a certain logical order.

The words I said when I was teaching at the China Police Officer University came to my mind. In addition, there is an interesting "magnet law" at the crime scene: there seems to be magnetism between valuable evidence, and it is always concentrated in one or two areas. If you find physical evidence a here, then there is The physical evidence b with a logical relationship may be nearby, while the physical evidence c with no logical relationship is likely to be nearby as well.This is often because most crimes—especially indoor crimes—are concentrated in a small area, and the evidence is relatively concentrated.This reminds us: in the investigation of the crime scene, especially in the search for evidence, we must be comprehensive, meticulous and meticulous.

The law of magnets, there seems to be magnetism between valuable evidence, and it is always concentrated in a certain two areas... She stared blankly at the two-seater sofa by the west wall. The remote control was found from under it... It's a bit awkward, and I can't tell where it is, but I just feel awkward. Could it be that there is a deviation in vision?She took a step forward and realized what the problem was: the position of the love seat seemed to be a bit out of place. Like the other sofas, the back was supposed to be about two punches away from the west wall, but in fact, it It seems to be a little more than other sofas.

She went around to the back of the double sofa, squatted down, and found a gray-white line exposed on the dusty ground. Obviously, the "butt" of this double sofa should have covered this line in the past. However, it has been moved to the east recently, and this move has deliberately shifted the angle, slightly tilted towards the direction (south) of the windows of the private room. "Si, check the photos in the folder, the overall views (overview photos) from the door to the south, and see if the movement of the sofa is the original state of the crime scene, or caused by the criminal police during investigation."

"Original state." Si replied after checking. So, why move this loveseat? Si Wang looked at her blankly and said, "Maybe, it's just that someone drank too much that night and sat here restlessly, causing the sofa to move." Liu shook his head, "Try it yourself and you will know that when a person is drunk, the seat always moves backwards, but moving forward like this sofa is usually done in a sober state." "But that doesn't mean anything," Si said. Indeed, nothing can be explained, and all individual evidences can explain nothing, just like the whole picture of a carpet cannot be seen from a single fiber, but if there are countless fibers and weave them together, it will be quite different.

The next survey continues from the mark, as if the end of the thread meets. Liu returned to the △ place, wiped the mark with his feet, squatted down, and continued to walk the grid bit by bit, concentrating on it, like a college entrance examination examiner who is using the last few minutes to check the paper.In those places where there were bloodstains, glass shards, and especially the yellow wedge-shaped cards, I checked them more carefully with a magnifying glass, and from time to time I asked for the photos in the file folder. No, too much is missing!She sighed inwardly.Due to the lack of corpses and physical evidence, this crime scene is like a movie curtain without continuous pictures or sound. She must use those photos to restore the scene here in her mind... This must be difficult. What troubles me is that I can't find the feeling—the kind of genius who has always been amazed by the police circle, who can detect the strangeness as long as he is at the scene of a crime.This can't be blamed on her, the cemetery has been moved, the bones have been incinerated, so where does the phosphorous fire come from? !There is no other way, there is only this empty private room left now, all of which are here, she has to observe slowly, every plane must be viewed as a three-dimensional painting, and it is not easy to solve the puzzle completely by imagination and intuition !She knew that Si, who was silent on the sidelines, had been questioning the meaning of what she had done, but all forensic forensic experts had achieved such insignificant achievements in the struggle with themselves.

When the grid-walking was completely over, she still had nothing new to gain. "It's over?" Si asked with a pun, with a hint of sarcasm in his smile. "You don't look like 1/3 of me, but rather my opposite." Liu said coldly. Si shrugged, "It doesn't matter, they all have the same shadow anyway—if you want, we can fit together right away." The shadow on the ground trembled. The window is thin at twilight, the surrounding fields are dark, the sky and the earth are stepping into the darkness inch by inch, and the cold air flows into the private room from every gap... Perhaps because of fear of the cold, Si took a step closer to Liu. "No!" Liu snapped. Thinking for a moment, he was stunned. "Until the survey is over, you and I can't fit together!" Liu bit his lip, "Liu Simiao is the only one in the whole lakeside building! She came here after all the hardships, the purpose is not to mourn, cry, mourn, regret, Then leave... From the moment she walked in the door, she was not just a wounded woman, but a scientist, a forensic expert working alone at a crime scene! She had no assistants, no Any companion, in this case, she can’t live without you, she can’t live without a questioner—the process of seeking truth must not lack questioning or even denial!” Si stared blankly at Liu. After a long, long time, a bitter smile slipped on the corner of Si's mouth, "Okay... But this private room has been searched, and except for the remote control, nothing of value has been found!" Liu took a long breath of relief, "You are wrong." An excellent criminal forensics personnel will never regard the crime scene as a plane, especially when the case happened indoors, you actually walked into a hexahedron... So, Liu pointed to the top of his head, "I haven't surveyed the ceiling yet." She and Si walked out of the private room together, looking for ladders from room to room, and finally found an aluminum alloy ladder in the restaurant at the west end of the corridor. Si was about to lift it, but Liu stopped her, "There is not much dust on this ladder, it seems Used it recently." Si said: "In the data folder, it is written that the inspection result of the ceiling of the private room is 'covered with dust, no physical evidence was found, and there was no sign of touch'-I think it may be that when the forensic personnel inspected the ceiling, they found that they forgot to bring Ladder, use this ladder temporarily." "They dare!" Liu Liu raised her eyebrows. "It is a serious violation of discipline to use objects and facilities at the crime scene in the investigation!" Keng said, "Look at these two pits, they were caused by the ladder leaning on them for a long time. If the police really used it, they could just lean on it and find a place to lean on. Would they be so careful to 'restore the ladder'? I Look, someone was trying to keep the police from noticing that the ladder had been moved?" Liu checked the ladder up and down, even the gaps between the pillars and the steps, but he didn't find even a fingerprint or a hair, so he had to carry the ladder to the KTV room with Si. Place it under the ceiling vent.Liu took out a flashlight from the site investigation box, climbed up the steps, pushed open the vent with his right palm, and then slowly stuck his head in, immediately smelling a choking smell of dust. When I turned on the flashlight, I saw that the ceiling was about 50 centimeters high and connected to the ceiling of the corridor, but because a beam hung down in the middle, I couldn't see too far.Wherever the weak beam of light shines on, it is covered with a thick layer of dust, and it is true that no one has touched it. When he got down, Liu sighed, "I still had a little fantasy, thinking that the police investigation was not meticulous, and the murderer left from the ceiling. Now it seems completely impossible." Si was silent for a moment, and said: "I really want to advise you, you should give up. Whether it is the appraisal report of the provincial forensic doctor or the re-examination results of Lei Rong, they all gave clear answers. Meng Jianyi and the other four are indeed Died of myocardial infarction, which can be explained in many ways: For example, Meng Ruhu was reprimanded by Meng Jianyi when he drank too much wine, and chased and killed everyone in anger, causing four people to have a potential heart attack. Meng Ruhu was killed in a fight, and before he died, Li Jialiang gave Meng Ruhu his head with an ashtray—in short, since this private room is a secret room, there is no possibility of other murderers.” "No, you are deceiving yourself and others." Liu shook his head, "Those four people died of myocardial infarction, but there is no answer to why the inner ear bleeds...Li Jialiang was indeed killed by Meng Ruhu, and the person who killed Meng Ruhu There must be someone else." "Why are you so sure?" Si asked. Liu pointed to the folder, "On the way here, I carefully studied every document inside. Didn't you notice a detail: no fingerprints were found on the ashtray where Meng Ruhu was killed." "I noticed." Si Yang raised his hand and made a smashing motion, "Maybe Li Jialiang smashed it with an ashtray wrapped in a towel or something—" The arm suddenly stopped in mid-air... Si suddenly realized the key to the problem. "In the police report, there is no mention of gloves or towels being extracted in the private room. I even wondered if Li Jialiang smashed the ashtray with a tissue and swallowed the tissue, but Lei Rong also thought of this, and specifically stated in the re-examination report that 'no paper fibers were found in Li Jialiang's digestive tract'—that is, the gloves or tissues were taken out of the private room by the real murderer." Liu said , walked to the window, looked at the window and said, "But the doors and windows are locked here, how did the murderer leave?" "If the murderer is really someone else, then it will be in big trouble." Si smiled wryly. "Ok?" "Because that night, besides the six dead people, you were the only one in this lakeside building, and you ran to the grassland covered in blood..." Si said, "After all, you became the biggest one again. crime suspect." Liu looked out the window, it was already too dark to see clearly.The wind in the field was getting stronger and stronger, and the remnants, reeds, sages, grasses and withered thatch wove into a vast withered yellow, shivering and trembling unbearably cold, like a sea lurking with giant beasts, everything was very much like that terrible night.She couldn't help shivering, "Miao, why haven't you seen her come down?" The two of them went up to the second floor together, and walked to the door of the room where Miao lived. The door was ajar, and when it was pushed open, there was no one inside. "Where did this man go?" Si said as he walked inside, looked back, saw Liu standing at the door in a daze, and asked, "What's wrong with you?" A shadow passed between Liu's brows, "It's nothing, I remembered that night... By the way, I remember that after arriving at the Lakeside Building that day, everyone lived in rooms on this floor, right?" "Yes, Gong Jing said that there are fewer people and more guest rooms, so each person has a private room. For safety, they are all on the second floor." Si pointed to the doors in the corridor, "Here, where are they all living? After the incident, forensics was conducted, and the doorknobs of each room have clear and complete fingerprints and palm prints, which can correspond to the personal items in the room..." She gritted her teeth, "Only our room The fingerprints on the doorknob of the house are messy. Besides Miao’s, there are Meng Ruhu’s and others’, which should have been left when they broke in.” Liu's face was suddenly pale as snow. Si quickly changed the topic, "Look at the situation, what happened after arriving here is as follows: Miao was resting in the room because of a fever, Meng Jianyi and Meng Ruhu wanted to rape her, but Li Jialiang stopped them, and then the six people went to the restaurant Going to eat, because there is no chef, cooking is very inconvenient, so everyone simply made a bowl of instant noodles, and after eating, they gathered in the ktv private room, singing and drinking while studying how to improve the five-element yin-yang mirror, and then—” "What happened next, Miao has not yet recalled." Liu said painfully. There was an orange earplug under the window sill. Si picked it up and looked at it again and again, then raised her head, pointed out the window, and said in an emotionless tone: "I see, you should ask her herself." Looking outside along her finger, Liu saw a sparkling lake and Miao standing by the lake.