In the case of dismemberment in Hangzhou, how did Xu deceive the nose of the police dog?

The case of dismemberment in Hangzhou is a textbook case, and the sophistication of the perpetrators is staggering.

He knew that if things were exposed, the police would come to him, so he handled the crime scene to the extreme.

The police once revealed a detail that he bought a bottle of detergent. It stands to reason that a big man won't buy this thing for no reason.

The decontamination effect of detergent is beyond imagination. He used two tons of water for thorough cleaning, which shows that he has good intentions.

Two tons of water and detergent are enough to completely remove everything in the house that contains the blood and smell of women.

In addition, the detergent will leave a special smell after cleaning, which is enough to cover the sky. In addition, the lady was washed into the septic tank, and the strong smell in the septic tank can mask the smell of the lady, so the police dog has little effect.

Originally, I came to the lady's house, and the smell of ladies was everywhere, which made the police dog feel at a loss.

Another version said that when the police dog first entered Xujia, Xu and his daughter were asked to avoid it. The police dog searched around the house and finally circled around the toilet in a hurry, which attracted the attention of the police at that time. The police's first impression was that they had been dismembered, and the blood might have flowed out of the toilet. ……

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Then they quietly continue to search and visit! Finally, the body was found in the septic tank where dozens of cars were pumped. The case was finally solved.

There are still many doubts about the disappearance of Ms. Lai in Hangzhou, because the case is still under investigation. If it is published first, it is likely to be discovered by a willing heart. Moreover, although Xu Guoli has admitted it, he can retract his confession at any time, so the relevant personnel are still actively looking for more evidence to prove Xu Guoli's crime.

There are many doubts, one of which is how Xu Guoli fooled the police dog's nose.

Xu Guoli once bought dishwashing liquid, which was probably used to clean the residual taste. We have used dishwashing liquid in our daily life. It is a detergent with strong detergency and strong fragrance. Its biggest advantage is that it can cover up the taste and is not easy to make people suspicious.

A trained dog has a very keen sense of smell. They can smell a very weak smell to identify.

It is found that there are only about 5 million olfactory cells in human nasal cavity, mainly because human nasal cavity is also relatively short. Dogs have hundreds of times as many olfactory cells as humans because of their long nasal cavity and many folds, which can reach hundreds of millions.

There are many olfactory cells, and the sense of smell is sensitive. They can easily identify all kinds of smells in the environment, even if they are diluted many times, they can still easily identify them.

However, the dog's sense of smell has a fatal defect, that is, it will amplify other smells. If other smells in the environment are enough to annoy police dogs, police dogs can't accomplish this task.

Based on this, Xu Guoli once bought detergent. Is it justified?

Washing with plenty of water can also mask the smell. Although there is no exact information about how many tons of water are used, the smell will be covered up and washed away if it is washed with a lot of clean water.

If you clean it, if you add a little detergent with strong decontamination ability, the taste will be easier to handle and the police dog will inevitably not smell it.

Police dogs hate irritating objects with their noses. If you cover it with something with a stronger smell in advance, the sense of smell of the police dog is likely to fail for a short time, making the police dog ineffective.

In short, the best way to prevent police dogs is to deal with the scene. After being treated with other irritating liquids, the smell almost disappeared without a trace.

Now it has been confirmed that Xu Guoli bought detergent, so I personally think that washing with detergent can avoid the smell of police dogs.

It is definitely not a lie. Since the police dog must have found the trail, it was just that the police didn't announce it at that time. Because the police dog found an abnormal action, the police must have recorded it, and the police will not publish every key data without cover. The scene was dismembered, so it can't be said that it belongs to Xu Gan without physical evidence. You must find the physical evidence before arresting people.

When Xu called the police, he said it was a missing case. At that time, it was not easy to arrest people without definite evidence, because police dogs only had a sensitive sense of smell to judge, because the home was relatively clean, and all they left was blood. It was not long before her husband called the police and dismembered the body, and his crime was also carried out in the toilet. If the police dog has abnormal performance, it can't be judged that it was dismembered, because if Ms. Lai died during the physiological period, the toilet would smell of blood, so it is impossible to arrest people directly.

The police dog didn't find the body and the dismembered body that day, indicating that there was no strong evidence. The next step is to investigate other details, because every investigation is very serious and takes a lot of time. In the end, it must be dismembered in many ways, and then it took dozens of car dung to really catch strong evidence. Coupled with so many days of monitoring and some detailed investigations, Xu was a murderer before being forced to arrest people. So, it wasn't Xu who cheated the police dog. The police dog has abnormal performance. Without definite evidence, it is not easy to catch the body or dismember it. It is not that Xu is clever, nor is it that police dogs are cheated.

This case can be said to have been solved at present. On July 25, Hangzhou police issued a notice saying that the criminal Xu had pleaded guilty, and he had confessed to killing his wife while she was sleeping and dumping her body in a septic tank. Hangzhou police finally found the suspected human tissue after 25-hour uninterrupted septic tank inspection and washing screening of 38 vehicles. After field extraction and DNA comparison, it was determined that human tissues belonged to Ms. Lai. After comprehensive judgment, Ms. Lai has been killed.

From this point of view, after killing his wife, Xu Moumou dismembered Ms. Lai, which was extremely cruel. Now that I think about it, my back is cold. Xu is simply not a normal person. He really did everything he could to get all the legacy of Ms. Lai. In order to hide people's eyes and ears, Xu Moumou also claimed in an interview with the media that his wife, Ms. Lai, was likely to go out.

Seeing Xu's expression when he was interviewed by the media, he was calm and free and easy, which really made all netizens feel that this person was terrible. In addition to calm words, Xu actually killed his wife overnight and destroyed his body. Even when the police went to their house 1 time to look for clues, they found nothing. You know, at that time, the police took police dogs to search, and police dogs were 10 thousand times more sensitive than human beings. This brings a problem. Since the police report says that Xu didn't kill his wife elsewhere, but in his own home, then Xu's murder and dismemberment at home will inevitably leave blood or foul smell. Why didn't the police dog find it?

Xu moumou has long been premeditated. The author believes that it can be seen from the police report that Xu Moumou murdered his wife in a premeditated manner. Before killing his wife, Xu must have known that if things were exposed, the police would come to the door. This is very likely before he committed the crime. So he will handle the scene to the extreme after committing the crime. Another detail in the police report is that Xu bought a large bottle of detergent on July 5. According to common sense, a big man will not buy detergent for no reason after his wife disappears. Now it seems that Xu should have used chemicals including detergent to remove all the blood and smell from his home.

It can be seen from the fact that the police dog found no clues that Xu's anti-reconnaissance ability is super strong. Of course, this may be related to his experience as a soldier. When investigating the household water consumption, the police suddenly found that the household water consumption exceeded two tons on July 5, which immediately aroused the high vigilance of the case handlers. You know, the police didn't find any clues in Xu's home when using police dogs, and the water consumption of his home that day exceeded the normal water consumption 10 times, and may even reach hundreds of times. This in itself is very abnormal. In the case of Xu's failure to give a reasonable explanation, it can only show that Xu's house will inevitably rush into the sewer that day.

It seems that a large part of the chemicals used now is more than two tons of water. It is Xu who cleans the blood and smell in his home with chemicals including detergent, and then after all the blood and smell are processed, Xu's home will only leave the smell of chemicals. So even if the police dog searched his house, it had little effect. After all, Ms. Lai has been washed into the septic tank by Xu Moumou, and the smell in the chemical pool is enough to cover up the lady's body odor.

To sum up, the police quickly found a breakthrough in the abnormal water consumption. As a result, the case-handling personnel quickly investigated the septic tanks in the community. After 25 hours, 38 cars of feces were washed and screened, and finally suspected human tissues were found. After DNA comparison, Ms. Lai's human tissue was finally determined. So far, the police have determined that Ms. Lai was killed. The biggest suspect is obviously Xu Moumou. In the face of ironclad facts, Xu had to plead guilty to the law. As long as Xu commits a crime, he will leave many clues. As long as the police find a breakthrough, Xu's crime will be exposed, and he will pay the legal price for his evil deeds.

The case of dismemberment in Hangzhou has been detected by the police. The victim came to his wife and died at the hands of her husband Xu Guoli. It is said that Xu Guoli dismembered the body after killing. It should be noted that Xu dismembered the body in the bathroom at home, and the police dog did not find it, which is very unreasonable.

What the hell is going on here?

First of all, Xu Guoli must have done it very carefully and handled it as if nothing had happened. This can be seen from Xu Guoli's background that he is fully capable. First of all, he is engaged in raising ducks and dealing with them. Killing is not a problem for him at all, and there won't be too much psychological burden. Besides, ducks have a strong smell. Xu Guoli may have some chemicals to remove the smell.

Xu Guoli handled the body in the bathroom, which has a small space. After the door is closed, stick plastic skin and other things to prevent blood from splashing out, so it is difficult to see blood on the outside. Just use a lot of water with disinfectant and air freshener to cover up the smell of the bathroom.

After talking about the possible cover-up measures of the murderer, let's talk about the police dog. It is impossible for a police dog to smell blood. Even if it is done well, it will stink in a short time. Police dogs didn't find it. I think it may have something to do with the fact that the police didn't want to kill people and dismember them. Police dogs, after all, are not human beings, and a little faint smell will not cause much reaction, so they are hidden by the murderer.

It can only be said that the cunning Xu Taicong understood that the murder was premeditated. I easily fooled several police dogs, and even he considered avoiding the search by police dogs and made preparations. Also, more details have not been announced, just everyone's imagination. Why can he fool a professional police dog? Let me give you my opinion.

As we all know, there are many wrinkles on the nose of police dogs, which increases the sensitivity of smell. Their sense of smell is hundreds of times higher than that of humans. As a police investigation tool, police dogs do play a great role, but dogs are not omnipotent noses, so we can't trust them too much. Police dogs can identify and identify criminals according to the footprints, smells and articles at the crime scene. But police dogs did not play a role in Ms. Lai's case.

First of all, the treatment of blood and meat is unique. The criminal Xu's cruel means are extremely cruel, and the process of committing crimes is the existence of the devil. A normal female weighs about 100 kg, her blood 10 kg and her meat is over 50 kg. He suffocated with a pillow and dragged it into the bathroom to bleed. He can catch it in a basin, pour it into boiling water, add other chemicals, pour it into the toilet after solidification, treat it with chemicals, and then boil it with hot water, so that the smell of blood disappears. Of course, the dismembered meat foam is also treated in this way. After the meat is cooked, it flows into the sewer with the cooperation of water, thus avoiding the sense of smell of police dogs.

Second, clean the lid with plenty of water and detergent. The crime scene notified by the police was in his bathroom. It is reported that Xu bought a band-aid and detergent downstairs on the 6th, and used nearly two tons of water that night. This shows that after Xu smashed the body on the spot and rushed into the toilet, Xu cleaned it with detergent, disinfected it on the spot, and then opened the window, so that the smell of the lady would become very weak, and the weather was hot, and the smell soon disappeared. It was three days before a police dog came to the scene to identify it. No matter how sensitive a dog's nose is, it's hard to find it.

After Xu conspired to kill his wife, he felt good about himself, but now the investigation technology and the level of solving crimes are so developed that there will be no perfect crime! During the investigation, the police must have found something suspicious, such as the toilet being moved and the glue of new and old crops. There is also the fact that police dogs are always wandering in the bathroom, so the police have long suspected that he is the murderer, but they don't want to startle him without conclusive evidence. Finally, 32 dung suction vehicles were used, and after cleaning and screening, the lady's human tissue was finally found, and conclusive evidence was found! This brought the suspect Xu under control. The truth of a premeditated wife murder case came out!

Skynet is slow but not leaking, good is rewarded with good, and evil with evil. What awaits him now is the severe punishment of the law. Does he regret his original behavior?

I'm @ Guanzhong Xiangrong. Welcome to comment and forward, thank you!

Xu can't fool the police dog's sense of smell. He can only say that police dogs have limited functions. Police dogs have a very sensitive sense of smell, which is 40 times that of humans. There are more than 200 million olfactory cells, which can distinguish 20,000 to 30,000 different smells. Therefore, it is absolutely impossible for Xu to fool the nose of a police dog. If Xu judges in advance that the police may let the police dog investigate and knows that the police dog will appear in advance, he can use high-intensity irritating chemicals to disable the police dog's sense of smell.

Xu thoroughly cleaned the house with two meals of water and a bottle of detergent. The key point of cleaning is to dispose of the toilet of the body. As for the bedroom, living room and kitchen, Xu Can paid no attention to these places.

After cleaning, it is impossible for Xu to rearrange the bathroom with irritating chemicals. Therefore, Xu did not expect police dogs to come home to investigate.

The smell of cleaning agent is not irritating, so it will not affect the sense of smell of police dogs. In the process of dismembering the body, Xu will certainly take measures to prevent blood from splashing on the floor, even if it does, it is extremely rare, and all the remains of the body will go through the toilet and rush into the sewer. After disposing of the body, the blood must be extremely clean and the smell left is minimal after repeated cleaning.

When police dogs come to Xu's house for investigation, Xu's wife will leave a smell in the bedroom, kitchen and living room at home, and the smell of this lady will last for a long time. Therefore, police dogs can smell the smell of women in the whole room, whether it is the bedroom, living room or kitchen, or even the bathroom.

Police dogs are good at finding objects through their sense of smell, or tracking objects from a distance through their sense of smell, such as looking for drugs and tracking suspects from a distance. However, Ms. Lai disappeared at home. If a small object is hidden in the house, or a broken body is hidden in the house, the police dog can track it 100%, but after Ms. Lai was dismembered, it was all disposed of from the sewer, and the police dog has lost any target. Even if the police dog smelled the smell of Ms. Lai in the bathroom and circled around the toilet, people could only guess that Ms. Lai had been to the bathroom before her death, and it was impossible to doubt that Ms. Lai had been dismembered.

Because the police dog can't talk, she can only tell her owner by smell that Ms. Lai has been to the bathroom. If Ms. Lai leaves home, the police dog will know that Ms. Lai has left home through the sense of smell. If the police dog doesn't smell that Ms. Lai has left home, it is equivalent to telling the police that Ms. Lai has not disappeared and may have been killed at home. Moreover, through the community surveillance video, it can be proved that Ms. Lai has never left the community, but Ms. Lai has disappeared, and the police dog has not found any traces of Ms. Lai's leaving home through the sense of smell. At this point, the police can completely suspect that Xu is suspected of killing his wife, and it is at home.

In short, it is impossible for the police dog to trace the clues of the broken body of the incoming lady, but the police dog will definitely show that she didn't smell the trace of the incoming lady leaving home, which gives the police a proof that the incoming lady was at her home from beginning to end, while the missing person can only show that the incoming lady was killed at home and her body was disposed of. Therefore, police dogs also played some roles in this case, indirectly proving that the lady who came in never left her home, which was enough to solve the case. This is a good question, and there are indeed many people who have such questions.

There was a time difference before the police dog arrived. The suspect confessed that his wife was suffocated in the early morning of July 5, but was not dismembered at that time, but was dismembered after her daughter was dismembered in the morning.

At six or seven o'clock in the evening of July 6, Xu and his eldest daughter went to the police.

This period of time is from the morning of July 5 to the evening of July 6. Within 30 hours, he must get rid of all the bodies and do a good job in the aftermath.

Why did Xu Can fool the nose of a police dog and make some bold guesses here: 1. What are the police dogs doing? The police dog is to search for smells, help the public security to find clues and then solve the case.

Some people say that the police dog first came to the lady's house, smelled the smell of the lady's clothes, and then went out to search for the trace of the lady. I don't think it makes sense. Police dogs are trained and must have smelled blood. It is very sensitive to this. This is one of its areas of work. You can't be indifferent when you smell blood at home.

The only possibility is that Xu closed the door of the bathroom, and the smell of blood in the bathroom was so light that he could hardly smell it, so he fooled the police dog.

He raises ducks just like killing them. It is likely that he spread a film on the bathroom floor and then dissected it, thus reducing the chance of leaving blood on the bathroom floor.

Anyone who has killed ducks knows that ducks have a strong smell. Xu knows how to use chemicals to eliminate the fishy smell. It is likely to buy some drugs or chemical reagents, which can quickly dissolve human tissues and eliminate the fishy smell brought by blood.

4. The bathroom must use a lot of cleaning liquid, and 84 disinfectant and detergent are used for both inside and outside cleaning. It is likely that when the police dog comes, the smell of 84 or detergent is very strong, and the blood smell is very weak, so the police dog can't smell it.

I have to say that suspect Xu's anti-reconnaissance ability is particularly strong. However, the justice of the earth is long and not leaking. As long as a crime is committed, there will always be traces, which police dogs can't find. Then there are other clues to be found.

Police dogs didn't play much role in this case, because the smell of the missing lady must be everywhere in her house.

Even in the bathroom, it is normal to smell, and police dogs can't tell people there is blood. It is unrealistic to say that police dogs should follow the smell to find the place where criminals dump their bodies.

In addition, it rained heavily that night and the smell was washed away. Another reason is that criminals will definitely use cleaning supplies such as bleach to clean up the scene. Therefore, in this case, it is normal for police dogs to find no evidence. Police dogs are usually only used to search for missing people.

Some people say that Xu is clever in handling cases, but in fact he is not clever at all. It took the police twenty days to solve the case, not because they were cheated by Xu. On the contrary, the police have been looking for evidence. From the moment of reporting the case, the police have listed Xu as the first suspect and have taken monitoring on the surrounding area.

But now, with the improvement of the rule of law, the police are more demanding to abide by the rules when handling cases. You can't arrest people because of suspicion, you must find evidence. If it had been 40 years ago, it would have been arrested and beaten first, but it won't be like this now.

The reason why Xu's technique is not clever is because we can see from the news these days that there are many similar cases at home and abroad. All of them are husbands who killed their wives, dismembered bodies, and called the police after dumping them, and all of them were arrested without exception.

The difficult and time-consuming part of this case is to find the victim's body, because the community is too big, and it will take a long time to search it carefully several times.

Xu looks smart and has a high IQ, but he is actually stupid. Now the probability that China's murder can escape is almost zero.

Hangzhou dismembered corpse case, a historical case! Xu's bloody and cruel, people can't help but be scared across the screen!

Shredded corpse, 2 tons of water, detergent, raising ducks. ...

The smell training of police dogs should be targeted, such as blood smell and human body smell! When you come to a lady's house, the smell of the lady must be everywhere and easy to interfere. The taste of blood should be the main subject of police dog training. So, did the police dog smell blood at Ms. Lai's house and find a clue?

Imagine that Xu has been in the poultry business for several years, and it should be a piece of cake for him to bleed. Then the lady should have been suffocated in bed while sleeping. He can't dismember the body in the bedroom. The police have informed him that the scene of dismemberment is to come to the lady's house, so the most convenient place is the bathroom.

A knife bleeding, 2 meals of water, detergent ..., in more than 30 hours, these are enough to slowly wear away some traces! This makes it difficult for police and police dogs.

However, how can the police be vegetarian!

Challenge there can't be a program about police dogs! In the program, the host dropped a drop of blood into a waterwheel filled with water (not counting more than two tons). After fully stirring, he put a box of bloody water and other bloodless water on many cars. The professionally trained police dog broke through many obstacles and successfully found the box containing blood water. It can be seen that police dogs that can perform tasks are still quite powerful.

I think even though Xu used two tons of water and detergent, he still left a clue.

It is said that when the police dog first entered Xujia, Xu and his daughter were asked to avoid it. The police dog searched around the house and finally circled around the toilet in a hurry, which attracted the attention of the police at that time.

Later, some particles were found around the toilet and human DNA was detected, so there will be follow-up police who will not be afraid of the high temperature and stench and find evidence that the lady was killed from 38 car manure water!

Skynet is long, sparse and not leaking!