The Office of the Director of the Xuyuan County Public Security Bureau.

Chu Tianqi sat behind his desk, and Qu Gang sat on the chair opposite.

The two of them came back from the scene of the fire first, Gao Qiang and others were still there to collect evidence, and Gao Feng was still there.

One person lit a cigarette, and Chu Tianqi asked, "Lao Qu, let's just talk about it now." ”

"There were a lot of people at the scene, and there were two police officers in the car just now, so I kept holding back. After a brief explanation, Qu Gang continued, "I feel that this fire is very strange. When I got to the scene, I smelled gasoline and saw the intensity of the fire, and the crackling sound, much like a combustible. According to Gao Feng just now, this house has been abandoned for several years, there is no open flame, no electrical equipment, and the electrical circuit is also cut off, how can there be combustibles? It is also burned from the roof, which is very similar to someone pouring gasoline and igniting it with fire.

At nine o'clock in the evening, it had just rained, and the rafters, doors and windows were still wet, so it was not easy to catch fire. In addition, suspected gasoline spots were also found in the adjacent places of the neighbors' houses on the left and right, but there were no such findings in other parts, and they should have splashed on the Gaofeng family's house when they were splashed. Looking at the fire situation at that time, it was burning from the middle of the house to both sides, which clearly wanted to control the fire in this small courtyard, and only wanted to burn this courtyard. Therefore, I preliminarily concluded that this was a deliberate arson. ”

Chu Tianqi nodded: "According to your analysis just now, it is very likely that it was deliberately set on fire." So what do you think is the motive for the crime?"

Qu Gang replied: "Any arson case has its initial starting point, and it has both common characteristics and differences of this type of case. But it's nothing more than revenge or anger, or it can be ruined for the sake of ruining. Specific to this fire, the key is to confirm whether it is intentional, and at the same time, it is necessary for Gao Feng to provide some people and things that may be related to it, of course, as the police, there must be relevant visits and investigations. ”

"That's right. Chu Tianqi nodded in agreement.

Chu and Qu discussed this issue with each other again.

After about half an hour, Gao Qiang and Gao Feng also arrived at the director's office and sat on the sofa.

Looking at Gao Feng, who had an ugly face, Chu Tianqi set his eyes on Gao Qiang: "Gao Qiang, what did you find?"

Gao Qiang said: "After arriving at the scene, I originally wanted to extract the footprints, but there were many people on the scene, and the footprints were messy, and none of them were complete at all. Moreover, the fire was very big at that time, and it was inconvenient to extract other evidence, so we participated in the firefighting first. In the process of fighting the fire, I found that there were suspected gasoline spots on the roofs of the two neighbors' houses, and nothing else was found. Heavy rain fell from the sky, and the fire was extinguished. After the fire was extinguished, we set out to extract evidence. But the heavy rain not only helped us extinguish the fire, but also destroyed some of the evidence that might exist, and we did not extract any fingerprints or footprints. Then we searched through the ruins and finally made a discovery. As he spoke, Gao Qiang took out a plastic bag from his bag.

Chu Tianqi saw that inside the plastic bag, there was a piece of burnt black paste, and there was a thin curved object strung on it, and the diameter of this thing was slightly larger than the diameter of a ping pong ball.

Pointing to the contents of the plastic bag, Gao Qiang said: "After identification, this is a broom handle, which is the kind of broom made of sorghum straw commonly used at home, and now there is a thin wire tied to it." Now this thing is burned beyond recognition, full of smoke and charcoal, but it can still smell the smell of gasoline. In addition, there is a thicker piece of wire on top of it, which is not the same size as the broom bundle wire, and passes through the broom handle.

Judging from the curvature of this wire, this should be a ring with the thickness of a forearm, but the other half is broken. This round iron ring is obviously thicker than the broom handle, so there is a certain gap between the ring and the broom handle. Let's assume that there is something else tied to the gap, such as a rag or something, but the rag is burned, and the rag is soaked in combustibles such as gasoline. This courtyard has been vacant for many years, with no people and no electricity, and combined with these existing discoveries, it can be preliminarily determined that this is an intentional arson case. We'll soon be testing the broom handle to see if it's as we analyzed. ”

Qu Gang answered: "Captain Gao, I agree with your conclusion about intentional arson. In addition, based on the iron wire left on it, you speculate that it is an iron ring for binding rags, and this iron ring may also be used to hang the broom on the wall, and it may not be something to tie up. ”

Gao Qiang explained: "Qu Bureau, I asked Gao Feng, and he said that there was a plastic broom of that kind in the house, and there was no such thing. Therefore, this thing is coming from the outside. Also, the remaining broom handle is the part that is next to the broom fan. Generally, people don't get the hanging ring to this part, most of them are strung at the end of the broom handle, and most of the time they use thin wires or cords, if they use this thickness of wire as rings, it is not very convenient to hang. ”

"Justified, justified. Qu Gang nodded and smiled, and then said, "Then according to your analysis, this broom handle is from outside the house, and it is likely to be the main ignition." So many wooden purlins and rafters were almost reduced to ashes, and there was only a piece of charcoal left in the wooden beams, and it stands to reason that the broom handles soaked in gasoline should have been burned at all. But why didn't it all burn down and appear in the ruins?"

"Qu Ju, you are really good, you see the problem profoundly, and this is also where I have doubts. Xiao flattered the other party, and Gao Qiang continued, "According to Gao Feng, there is mud under the roof tiles, and below is a straw curtain pasted with mud. I speculate that the arsonist must have uncovered a few pieces of roof tiles before setting the fire, removing the mud and revealing the grass curtain underneath, which was probably sprinkled with gasoline as well. Then throw the ignited combustible material over the exposed straw curtain, or simply carry it with a long pole and light it.

In this process, the broom is likely to be separated from the rags tied to it, and it may burn more slowly because the broom is tightly bound to the straw. On the contrary, the straw curtains burned quickly, and the wood in the house, which had been dry for many years and had insects, was almost sticky to the fire. Just like that, before the broom handle was burned, the roof beneath it collapsed, and the broom handle fell into the house. Immediately after, the roof collapsed, and the broom handle was instead covered underneath, probably just in time to be extinguished. I'm just speculating, and this speculation can only be true if the broom handle detects that there is gasoline or other flammable substances. ”

"It's very detailed, and it's terrifying. Qu Gang also praised Gao Qiang.

In this way, the discussion continued until four o'clock in the morning, and then it dispersed. During the discussion, Gao Feng was depressed, and when asked, he only said some useless words.

……

Despite the astringency of his eyes and the fatigue of his body, Chu Tianqi still got up at eight o'clock. Because there are still a lot of things to deal with for him, and maybe someone will come to his door. If you are caught by your superiors and you are sleeping behind closed doors, will you not hit the muzzle of a gun? Or if you are touched by someone else, it will be embarrassing enough.

After washing, Chu Tianqi did not eat breakfast, but sat directly behind the desk, smoking while thinking about things.

At nine o'clock, Gao Qiang called. He reported to Chu Tianqi that after testing, there was gasoline on the broom handle, and gasoline was found in many samples. It has now been established that this was a case of deliberate arson.

As soon as I put down the phone, the peak came.

Motioning for Gao Feng to sit on the chair opposite, Chu Tianqi asked directly: "I think you will definitely come, just say anything you have." ”

Gao Feng nodded, and lowered his voice: "Director, my house was burned, it was definitely intentional arson, and everyone recognized this when I was in your office in the early morning." At that time, I didn't say who I suspected, because I couldn't be sure, and second, there might be a deeper reason for this. For my own safety, and for the sake of information security, I can only speak to you. ”

Chu Tianqi nodded, indicating understanding.

Gao Feng continued: "We met at that old house in April last year. I remember saying at the time that it was left by my father, and he specifically instructed him not to sell the yard before his death. When my dad said this, I thought it was more of his thoughts, and I didn't think much about it. After his unexpected and tragic death, I pondered this sentence again, and I always felt that maybe this courtyard was not as simple as 'missing'.

After that, I went back to the old house after a while, not only to miss my father, but also to experience the deep meaning of his father's special instructions, and to find something that might be important from it. Of course, I knew that my father certainly didn't have any possessions, and if there were any secrets, it was definitely about work. But I turned it over many times, and there was nothing special under the kang mat, on the ceiling, and in the stove. Even knocking on many places on the wall, I didn't find any holes, let alone any pieces of paper or anything useful. I thought maybe I was too suspicious, so I didn't continue to look for it.

It's just that since this year, when I went back to the old house, I felt that someone had been there, and the things inside had been turned over, but the door lock was intact. So, I deliberately made two very subtle markings. In early April, I went back again and found that the two markers had been broken, and someone must have been there again. A dilapidated house with nothing of value in it, which the thief should not visit more than once, and the door lock is not broken, and it is not in the style of the thief. This has to be doubtful.

In just such a short time, the house was destroyed by arson, so I decided that there must be a secret in that room, or someone thought there was a secret in it. The other party burns for the sake of burning, not revenge or anger. If it's revenge, the other party won't just take an old house to get angry, he can completely attack me or my family, at least by splashing dirty water to clean me up. ”

"Oh, then do you have any suspicions, what are you suspicious of what they are looking for?" Chu Tianqi asked rhetorically.

"I suspect ......" Speaking of this, Gao Feng stopped, cautiously looked at the door behind him, and suppressed his voice very low, so low that only Chu Tianqi on the opposite side could hear it clearly.