Lin Yuan looked at this elderly catcher and asked, "You are Li Catcher?" ”

Li Zhutou replied: "It's the villain." ”

Lin Yuan asked, "Tell me, how did the fire burn?" Did someone set it on fire? ”

Li Zhutou said: "My lord, in my opinion, this fire was started by itself, not arson. ”

At this moment, Shen Wanqing said on the side: "I think there is a 90% chance that this fire was set up by someone." ”

Li Zhutou glanced at Shen Wanqing and said coldly: "Which girl's baby are you?" Why don't you go home soon, is this a place for you to mess around? ”

It turned out that as soon as Shen Wanqing arrived at the fire, she looked around, so there was a distance from Lin Yuan, so Li Zhutou didn't expect that she came with Lin Yuan, women in this era have no status, and Shen Wanqing has long been ignored on various occasions, so she didn't get angry.

Lin Yuan hurriedly said on the side: "Li Zhutou, we came together." He turned his head to Shen Wanqing again and asked, "Wanqing, why do you say that the fire was set up by someone?" ”

Shen Wanqing said lightly: "Intuition." ”

Li Zhutou saw that Lin Yuan and this woman named "Wanqing" were very close, and knew that the relationship between the two was extraordinary, so he smiled and said: "This young lady, I have offended a lot, forgive me." Shen Wanqing smiled slightly and said, "It's okay, since Li Zhutou said that the fire was raised by himself, let's analyze it." ”

Li Zhutou turned to one side, made a gesture of please, and said: "My lord, please go to the fire with me, I will explain to your lord in detail, my lord, please rest assured, this warehouse is very strong, and there is no risk of capsizing after the fire." Lin Yuan was also very relieved about the warehouse built by his commander, so he followed Li Zhutou into the warehouse, which was full of gray and white embers, some were still smoking, and the ceiling and pillars had been smoked black, Li Zhutou said: "Since the villain followed his father to handle the first case at the age of fifteen, he has been in the business for thirty years, and many cases of fire have been solved. ”

Li Zhutou pointed to the wall opposite them and said: "My lord, please see, the ceiling there is the most seriously burned, I sent Deli Catcher to go up and check it, the steel frame there has been burned and deformed, so I concluded that the fire was started from the cotton clothes under the ceiling, and the fire traveled everywhere, igniting the surrounding cotton clothes, cotton is extremely flammable, so this fire burned all the cotton clothes in the entire warehouse." ”

Shen Wanqing asked, "How can a good cotton coat burn up?" ”

Li Zhutou replied: "I have handled similar cases before, this cotton is the warmest, and there is no window to ventilate the wall where the fire started, so the heat accumulates in it and cannot be dissipated, so it burns itself." ”

Shen Wanqing frowned and asked, "There is no high-temperature heat source, where does the heat of cotton come from?" ”

Lin Yuan said: "Wanqing, what he said is true, cotton will absorb moisture in the air, this is an exothermic process, cotton is stacked together, the heat can not be dissipated, so it will spontaneously combust, plus it has been raining here in recent days, and the air humidity is relatively large, so it is not uncommon for cotton to spontaneously combust." ”

Shen Wanqing smiled: "Wouldn't it be someone who lit a fire there?" ”

Li Zhutou said: "Impossible, the villain had asked the keeper of the warehouse and a few porters in detail before, and asked about the stacking of cotton clothes here, you see, the warehouse is more than ten meters high, and the cotton around the fire point is piled up to eight meters, and the porters have to use a rack car to take off the top cotton clothes, and the fire point is surrounded by cotton clothes, people can't get in at all, if you deliberately set fire, why not just order the cotton clothes outside?" ”

Li Zhutou said again: "Even if someone moved the rack car and threw the fire into it, it is impossible, first, this rack car is extremely heavy, and it takes five or six strong men to push it, and second, when the rack car is pushed, the sound is very loud, and the people outside can hear it clearly, and there are patrolling soldiers outside the warehouse, basically they can get here once in a quarter of an hour, so it is impossible for someone to set fire." ”

Lin Yuan nodded, looked at the warehouse, and said, "In my opinion, Wanqing is right, this fire was indeed put up by someone." ”

Li Zhutou was stunned for a moment, and said, "Please ask the lord Gao Jian." ”

Lin Yuan pointed to the window beside him and said, "You see there are two windows here, for ventilation, the windows are always open, just opposite the fire point you said." Li Zhutou couldn't think of what Lin Yuan was going to say, so he had to listen with a frown, Lin Yuan pointed to the window again, and said, "Look, it's already blackened here." ”

Li Zhutou said with a blank face: "The villain is stupid, please make it clear to the adult." ”

Lin Yuan patted the wall under the window with his hand and said, "This is the point of fire, and the fire is from here." ”

Li Zhutou said: "My lord, in the past 30 years, the villain has solved dozens of arson cases, and among the fires, it has always been the place where the fire started that burned the most seriously, but the burn here is much lighter than the wall over there. ”

Lin Yuan said: "I'll explain to you what is the fire point, you should know the hot air after the fire," Lin Yuan was worried that Li Zhutou would not understand the meaning of the hot air, so he changed his words and said: "The hot smoke produced by the fire is very light, so I walked to the top of the fire, and there was a window above the fire point, and the cold wind outside blew in, which would blow the hot smoke towards the opposite wall, and it would fall down when it reached the opposite wall, so it ignited the cotton below." "So there is no evidence of a fire burning from here on the ground, and the person who set the fire places flammable materials here and ignites them, and there are very few of them, so they light the cotton under the opposite wall and then extinguish it, and when the fire is gone, it leaves us with the illusion that there is a fire."

Li Zhutou said: "In this case, why doesn't the hot smoke fall at the front and ignite the cotton at the front?" ”

Lin Yuan said: "This question is very good, while explaining this problem, it can also be explained that the ceiling above the opposite wall is the most seriously burned by the fire, after the cold wind outside the window meets the hot smoke in the house, the cold wind is below, the hot smoke is above, this layer of cold air separates the cotton and the hot smoke, this is a process of hot and cold struggle, when they come to the junction of the opposite wall and the ceiling, the cold wind is exhausted, and the hot smoke wins, so ......"

After Lin Yuan finished speaking, he pointed to the ceiling of the opposite wall with his hand and said, "The hot smoke there is constantly accumulating, and the fire is even stronger after igniting the cotton below, so it has become the most severely burned place." ”

What Lin Yuan said is the secondary fire point that should be considered when judging the fire point in modern fire science, how can Li Zhutou know Lu Dao, he listened to Lin Yuan's narration blankly, and said: "What the adults said is reasonable, but I don't know who set the fire in Lu Dao?" Lin Yuan frowned, and said: "That's right, who will set the fire, he must enter the warehouse gate first, then he must have a key, will the warehouse guard lose the key?" ”

"Even if the arsonist has the key, he can't come in and set the fire. ”

Lin Yuan asked, "For what?" ”

Li Zhutou said: "When we came, we specially asked, the door of the warehouse is made of iron, extremely heavy, even if there is a key, it takes five or six strong men to push it open, the sound made when pushing, if you come in through the door, you will definitely be discovered." ”

Shen Wanqing said suddenly: "I know how they got in. ”