Police Detective

Especially for this transcript, Bai Song specifically asked this person to confirm that it was indeed him who saw the candle lit when he passed by.

This person is one of the supervisors at the construction site, an uninterested third party, and his confession is still credible.

This has always been difficult for Bai Song to understand. He kept lighting the candle, and then it exploded a few minutes later?

Did the hydrogen balloon really explode?

This is not absolutely impossible. For example, if Yao directly puts the hydrogen balloon on the fire and bakes it, if the hydrogen balloon breaks, B combustion will occur within a certain range. However, judging from the video surveillance, even if more than 20 balloons burned at the same time, it would not reach this level.

"Do we need to do a detective experiment?" Wang Liang asked.

"This is a bit dangerous, but it's not impossible," Bai Song said: "The degree of danger is still controllable, but the knowledge I have learned tells me that this little hydrogen is really not enough. I also saw it in the video, and my daughter brought it A handful of balloons are made of soft strings and are still floating in the air, so there is nothing inside except hydrogen. Even if they are mixed with gases lighter than air such as methane and helium, they are of little value."

"Well, those things are not as explosive as hydrogen B." Wang Liang thought for a while: "Then I don't understand. Let's go to Brother Jie later. Maybe there is poison gas in the balloon."

"Well, let's wait a moment."

Half an hour later, news came from Sun Jie that no poisoning was found in the deceased's respiratory tract or blood, but the alcohol concentration was a bit high.

In other words, it was indeed the burn that caused the heart attack. But Sun Jie pointed out that the man had been severely burned and could not be saved even if he did not have a heart disease.

"Brother Jie," Bai Song asked, "this man's condition is definitely too high to be seen due to fever, but if he was just drunk and ran out within half a minute of the initial panic, is there any way to save him?"

"It can be saved. Although the temperature was extremely high at the beginning, if the time is short enough and someone splashes water to save him immediately after leaving the door, then it can be saved." Sun Jie said.

"Judging from the situation at the scene, everyone who lives near him went drinking with him. The slow fire fighting yesterday has a lot to do with this. Otherwise, when everyone is awake, the fire will not be dragged out until the fire department comes." Bai Song After thinking for a while: "What if no one saves him within three minutes after he comes out, and the fire on his body cannot be extinguished?"

"It can be saved, but it's very difficult." Sun Jie said.

"Okay, I understand." Bai Song said, "When will the final report be released?"

"An autopsy is needed. Let's wait for the consent of the family. His children have not yet agreed to the autopsy," Sun Jie said, "We are trying to figure out how to do the work."

"Article 129 of the Criminal Procedure Law, if the cause of death is unknown, you have the right to decide on the autopsy. Why do you need their consent?" Bai Song said directly: "Although the work will be easier to carry out if the family agrees, in this case, the possibility of murder by the family cannot be ruled out. , we have the right to conduct an autopsy directly, and of course, we are also obliged to notify the family members to be present."

"But..." Sun Jie hesitated.

"I said this," Bai Song said, "Until there is any objection from the Zhuang detachment and superior leaders, you must listen to me on this case."

"Okay, I'll talk to the people here." Sun Jie wanted to say that he was not in charge of forensics in this case.

Only then did Bai Song realize what he meant. Sun Jie was not handling the case very smoothly here.

Wang Liang and Liu Shuyuan are both deputy captains, and they are given face wherever they go. Sun Jie is an ordinary criminal police officer, so it is normal for him not to be taken seriously.

"I'll call their detachment leader." Bai Song said and got through the phone directly.

After making arrangements for Sun Jie, Bai Song then contacted Wang Huadong and Liu Shuyuan.

The on-site treatment was not in place. After careful investigation, Wang Huadong found partially burned polymer compounds in the cracks of the window.

Because the weather is cold, the house is well sealed and there are seals on the doors, but there are still gaps in the windows. This is an ordinary sliding aluminum alloy window. Although it also has plastic sealing strips and waterproof strips, something was still found between the two windows.

"What is it specifically?" Bai Song asked.

"It looks like it's foam rubber, not fireproof." Wang Huadong explained: "It's also used for sealing, but it's in the wrong position. How can anyone still use this between two sliding windows? Can the window be opened like this? ?”

"Is it newly sprayed?"

"There is no way to confirm this." Wang Huadong said: "Because aluminum alloy conducts heat quickly, there is still a little bit left in the cracks. I will go to the Criminal Division for testing later."

"Anything else found?" Bai Song asked.

"Also, the four bottles of wine brought by the deceased's children were burned and exploded, but only part of the other bottles of wine in the deceased's house exploded." Wang Huadong said.

"That's normal. My children bring high-alcohol liquor." Bai Song said.

"No, most of the wine in the deceased's house exploded, and only one bottle of liquor was broken."

"Is the wine brought by the children a little too close to the center of the explosion point B?"

"That's the case."

"That's normal."

"I still feel something is wrong." Wang Huadong was a little annoyed: "The main reason is that when putting out the fire, I didn't consider protecting the scene at all. The scene was full of water and glass fragments were everywhere."

"What else can we do to put out the fire?"

The most annoying thing for prospectors is never corruption or anything like that. What they fear the most is changes in the scene, especially large-scale changes.

"But."

"If it wasn't difficult, we wouldn't be involved in the case." Bai Song comforted.

"Okay." Wang Huadong finished the bowl of chicken soup and nodded.

What Bai Song didn't know was that this simple sentence eventually became the motto of the fifth team.

After studying the records of his children, there was no problem. The scene was too badly damaged. Wang Huadong was able to find this thing in the cracks of the aluminum alloy, which was already a very important discovery.

This may mean two things. One is that Yao was afraid of the cold and sprayed it himself, and he basically did not open the windows in winter. The other is that someone deliberately created a more sealed environment.

The weather is cold, so the first scenario is possible. After all, this kind of house leaks air in winter, and it is quite common to put various tapes on it.

"Wang Liang, go and check the video again. Have you opened the window in the past few days?"

When you are with others, you usually address them by name, and only address job titles when outsiders are around.

"Okay." Wang Liang looked at Bai Song: "Don't be too stressed."

"It's okay. The one under the greatest pressure is the Zhuang detachment." Bai Song waved his hand: "I still have an idea, you don't have to worry about me."

"What's your idea?" Wang Liang asked curiously, "Tell me first."

"There is only one accidental event in the case, and that is a heart attack. If it did not cause a heart attack, and the deceased was not burned to death, and if someone was indeed murdered, what would be the follow-up action?" Bai Song said, "This is the idea."

…

Thanks to Kasan 5 for the 30,000-coin reward. Sure enough, I was right, her appearance is incredible. This is recognition of my evaluation.