Chapter 17 Methods of Misleading Forensic Identification
"What method did Mabande use to mislead the forensic team in determining the time of death?"
Xu Tiannan ignored the two of them and just sat alone on the sofa with his fingers crossed in front of his mouth. He kept constructing the scene of the crime in his mind. He knew that during the murder, he must have missed something.
An important clue, and that clue was the reason that delayed the time of death determined by the medical examiner by dozens of hours."
After a long time, Murong Shui felt that the room was cold and cold, so he shuddered and muttered to himself: "This person Ma Bond... is too scary."
When Murong Shui thought about what Butler Ma had done, not only misleading the police, but also clearing Chen Jialuo's suspicion of murder, he couldn't help but shudder at this man. Even after staying in this room for a long time, he could feel a wave of pain all over his body.
There was a cold chill in his heart, and he said with lingering fear: "The more I think about Mabond, the more terrifying I feel... And don't you two think it's a bit cold here? Why is this kind of deathly room so damp and cold? Could it be that it's just like in a movie?
Is it so haunting?"
"Are you ridiculous?" Xu Tiannan explained: "What you smell is the mold stains produced when the moisture in the air comes into contact with the furniture. These smells are very similar to the smell of old furniture, so you will have a cold feeling around you.
"
Perhaps the speaker was unintentional and the listener was interested. Murong Shui's words suddenly caught Xu Tiannan's attention. He stood up and walked around the room, then walked out of the villa. After a while, he came back with a hand in his hand.
Bunch of key tags.
"Come on, let's go next door and take a look."
Several people came to Villa No. 7 next door. Although the layout of this villa is mirror-symmetrical to that of Villa No. 8, there are two obvious differences between this villa and Villa No. 8. One: the dust in this villa.
It is evenly distributed, and you can tell at a glance that no one has been here for a long time. Second: This villa lacks the cold feeling of Villa No. 8.
"I know! I know! That must be what happened!" Xu Tiannan seemed to suddenly think of something, and immediately pulled a few people back to Villa No. 8. He quickly ran upstairs to the door of the big bedroom, and said to Wen Sibao
Said: "Give me a knife."
Wen Sibao took off the key chain from his waist, broke open the Swiss Army Knife hanging in it and handed it to the other party. Although the knife was only as big as his little finger, it was thin enough for Xu Tiannan to insert the blade into it.
Get into the cracks in the wooden floor.
The wooden floors of this villa were not treated with seams, so there were tiny gaps of a few millimeters between the floors. It can be seen that when the room was decorated and cleaned, a small amount of dirt also seeped into it. After a while,
Xu Tiannan dug out the dirt from the gaps in the wooden floor, and then inserted his sword into the joint between the two floors. With a "bang" sound, a rectangular composite wooden floor was pulled out.
In the following time, the three of them pried out all the wooden floors in the bedroom, exposing the cement floor of the leveling layer below.
"Look there!" Murong Shui pointed to a corner at the end of the room and said, "That piece of ground seems different from other places!"
Looking along, I saw that the cement leveling layer on the ground at the end corner of the room was very dark in color and looked very damp. There were even a few gray damp bugs crawling out slowly from the gaps in the skirting of the wall next to it.
"As expected, I finally know how Butler Ma deceived the forensic team!" Xu Tiannan said while looking at Wen Sibao: "But before that, I have to confess something to you. "
Wen Sibao said: "What's the matter? But it doesn't matter."
"Well..." Xu Tiannan thought for a while, then scratched his head awkwardly and said, "Do you still remember when I took Murong Shui and Li Xianglan to your office to check information last time?"
Wen Sibao twitched his nose and whispered: "Didn't we agree not to mention this matter? Besides, can you call it a data check? Then it's obviously stealing citizens' privacy, okay! And do you know that last time? You made such a big fuss, and the detachment leader came to my office right then! In order not to betray you, I even lied that I was watching pornographic films! Because of this, Li Mengxue did not dare to talk to me for several days!"
The other party scratched his head in embarrassment and continued: "Okay, okay, whatever you say is whatever it is, but what I want to say is... I actually went there very early that day, and I was eavesdropping on the conversation between you and Li Mengxue at the door... Hey Hey, don't do it, you! Let me tell you the truth, I really don't get much from eavesdropping on your conversation, but... now there is good news and bad news, which one do you want to hear first? "
Wen Sibao thought for a while and said with a cold face: "I want to listen first!"
Xu Tiannan said: "Well! The good news is that I heard at the door that day that in a certain case, the suspect chose to bring the body into the cold storage for freezing in order to create an alibi. I think that in that case, Your analysis is right!"
"Stop talking nonsense! Just tell me the good news."
Xu Tiannan nodded and said: "Okay, okay, the good news is that now I am also influenced by your reasoning on that case, so I suspect that Butler Ma also used the same method, and finally deceived Li Xiangqin's body. Time of death examined by the forensic team.”
Wen Sibao was surprised and said: "You mean, Butler Ma also brought Li Xiangqin's body into the cold storage and froze it? Is that why Li Mengxue and the others deviated from the time of death of the deceased?"
Xu Tiannan shook his head and said: "Guard Ma would not be stupid enough to take the body out directly from this resort. After all, the trunk will be opened for inspection at the checkpoints entering the city. Moreover, once the body has been frozen and then thawed, the cells in the body will be affected. Ruptive injuries can easily be detected by forensics. So my real inference is that Housekeeper Ma used some kind of refrigeration equipment in this bedroom, turning this bedroom into a cold storage room with a temperature of about 0-3 degrees. , then after Li Xiangqin's death, the body will not be frozen, and at the same time, the temperature in the room can be lowered to slow down the chemical reaction characteristics of the body. After all, the air temperature is a very important reference indicator when the forensic team determines the time of death. Therefore, once Butler Ma did this, the forensic team's examination would be biased, delaying the real time of death by more than 20 hours."
After finishing speaking, Xu Tiannan took out his mobile phone and opened a page. This was an advertising page in a search engine. The product for sale was an integrated industrial low-temperature air conditioner.
Xu Tiannan said: "I have been thinking just now about what kind of equipment can meet this requirement. First of all, this refrigeration equipment cannot have an outdoor unit, otherwise it will leave construction traces on the outside of the villa. Secondly, this equipment It cannot be a household air conditioner, because the temperature range of ordinary household air conditioners can only be between 16-30 degrees. However, when I just checked the domestic manufacturers selling this kind of refrigeration equipment, I found that this kind of integrated low-temperature air conditioner for industrial use It fully meets the needs of this case, and the power of this model is generally around 28kw, so this can also explain why when we checked the electricity meter, the electricity consumption of other villas was around 350 kilowatt hours, but this one The reason why the electricity consumption of Villa No. 8 reached 1750 kilowatt-hours! That is because after Li Xiangqin's death, Housekeeper Ma used some channels to buy such a machine, and then ran it non-stop for dozens of hours, eventually turning the bedroom into It became a large cold storage, and it also consumed a huge amount of electricity."
Wen Sibao suddenly realized: "So that's it! The damp part on the lower floor of the wooden floor in this bedroom should be caused by this machine."
Xu Tiannan clicked on some comments on the web page and said: "Look, the store has already said on the product details page that when the gap between the set temperature and the room temperature is too large, condensation will form on the outer ring of the air outlet and fall to the ground.
Ma Guanjia was very careful. He must not have noticed this design flaw when he purchased the equipment, which allowed the condensation water to penetrate into the wooden floor."
"Then we're still waiting for the hammer!" Murong Shui jumped up and shouted to Xu Tiannan: "Boss! Then let's go! Bring that man named Ma back for trial now!"
Different from usual, Wen Sibao's reaction this time was solemn, as if he was thinking about something.
"What's wrong with you guys?" Murong Shui noticed something strange about the other two and asked.
Wen Sibao said: "Ah Shui, what we are doing now is called on-site restoration. It can even be said to be our 'wishful thinking' on-site restoration. It is still far from arresting Mabond."
After hearing this, Murong Shui also calmed down. She also knew that the police method is all about evidence. If there is not enough evidence to support it, they can't even apply for an arrest warrant now.
After a long time, Xu Tiannan said: "The low-temperature air conditioner that was once placed in this bedroom has probably been destroyed by Butler Ma. The top priority now is to go to the surrounding companies that sell this product to find evidence. Well, let's call Li Mengxue to my office tonight.
Let's gather together and let's talk to each other about the situation. From tomorrow on, you and Murong Shui will investigate all the factories that process refrigeration equipment in the city and suburbs. I believe that for such a large equipment, Mabond will not have time to go to other provinces to buy it. Of course,
He may also entrust his subordinates to purchase them. In short, he must obtain the list of all industrial refrigeration equipment purchased within the three days from Friday to Sunday last week."
…
On the way back to the city, Wen Sibao suddenly asked Xu Tiannan: "By the way! Didn't you just say that there is good news and bad news? What is the bad news? You haven't told me yet!"
Xu Tiannan's face darkened and he said slowly: "You...really want to listen?"
Wen Sibao said in a relaxed tone: "Hey! Look at what you said. It makes me feel so careless. Beheading is just a big scar on a bowl. No matter how bad the news is, how bad can it be?"
Xu Tiannan, who was sitting in the passenger seat, turned to look at Murong Shui. Their eyes were full of pity. After a while, Murong Shui seemed to have made up his mind and said, "You say it."
Xu Tiannan asked: "Is it too cruel?"
Murong Shui sighed and said: "Hey! You have to know this kind of thing sooner or later, just like... people have to grow up sooner or later."
Wen Sibao was not happy anymore and protested: "Why don't you say it or not? It's so mysterious!"
"Um...Okay." Xu Tiannan crossed his fingers and said with difficulty: "Do you remember what I said just now that I overheard the conversation between you and Li Mengxue when I went back to find you?"
Wen Sibao nodded, "It's all about work anyway, I forgive you."
Xu Tiannan added: "Well...that's not what I want to say. I want to say...when you and her were analyzing the case, I saw something."
When Wen Sibao heard this, he became more energetic and asked hurriedly: "What is it? Say it quickly!"
Xu Tiannan said: "Maybe you didn't pay attention at the time. When you were talking, Li Mengxue's hands were behind his back for a moment. Do you remember?"
Wen Sibao said: "How can I remember such a small gesture? What on earth do you want to say? Hurry up!"
Xu Tiannan frowned, suddenly took a deep breath, and said at a very fast speed: "Then I will tell you directly! I was at the door at that time, and I happened to see Li Mengxue blindly typing on the screen at an extremely fast speed.
A string of messages, although I don’t know what she typed, and I don’t know who she sent it to, but I know she used the Jiugongge input method, and the sequence of numbers she entered at that time was '42633226234'. These two
If the group number is typed out on a mobile phone... it would be this."
On the mobile phone screen in front of Wen Sibao, it was the four words displayed after typing "42633226234" using the Jiugongge input method - good baby.
"Hey! I thought you were going to say bad news!" Wen Sibao smiled casually and said casually: "It's been mysterious for a long time, but it turns out it's just a text message? What's wrong with sending a text message? I have such bad hair these days.
Text messaging is as simple as talking, and no one can say thousands of words every day..."
Suddenly, the moving vehicle trembled. Xu Tiannan and the two looked at Wen Sibao. The relaxed expression on the other person's face gradually disappeared. After a while, a wry smile appeared on the expressionless face, and they remained silent for a long time.
Murong Shui realized that the other party must have suffered a big blow, so he stepped forward and patted the other party on the shoulder, and said cautiously: "Baby Wen? Si Bao? Si Bao Wen...Fourth Master?"
No matter how Murong Shui screamed, Wen Sibao never responded, and the bitter smile on his face could not go away for a long time. Xu Tiannan whispered: "Stop screaming, this is a normal reaction when a person faces a sudden blow.
This situation is similar to that before death, the brain will secrete a component called 'endorphins'. At this time, he will feel physically relaxed and happy inside. I think as long as he survives this process, he will definitely be able to
Becoming stronger and starting from now on..."
"Tian Nan, are you there?"
When he heard the other party calling him, Xu Tiannan immediately responded: "Ah? What's wrong? I'm here."
As soon as Xu Tiannan finished answering the other party, he felt something was wrong, because he was surprised to find that the police car that several people were riding in was driving faster and faster on the national highway, and there was also huge wind noise coming from the windows on both sides.
At this time, Wen Sibao was holding the steering wheel with dull eyes. Seeing that the speed had exceeded the maximum speed limit, he suddenly turned his head and asked with a smile: "Tian Nan, what do you think we are living for in this world?"
"
Xu Tiannan's brain suddenly buzzed, and his words became trembling: "You...you...you can't think about it, can you?"
On National Highway 302 in Mobei City, a police car drove like lightning, kicking up large amounts of sand and dust wherever it went. However, in this dust, there were mixed with the frightened screams of a man and a woman.