Chapter 54 After the investigation is completed, the prevention is said, and the case is analyzed and measures are determined

I watched them pack up and was silent.

"Captain Li, the on-site investigation is complete, the equipment has been counted and packed, and we can go back." Xiao Ke said.

I didn't answer, but sat on the sofa in the living room and asked Hu Pingkai to sit down as well.

Xiao Ke and Xiao Cao were confused, and the two of them stood by and looked at me.

I said:

"Hu Pingkai, our on-site investigation has been completed, and we have something to talk to you about. This is a burglary case, this investigation and solving the case, of course, by our public security bureau to handle, if there is anything in the future, we will inform you in time. At the same time, your home must also do a good job of safety precautions, I will say a few comments for your reference. ”

Hu Pingkai nodded and listened carefully.

"First of all, I don't want to come to your house a second time because of the case, that is, I don't want your house to be burglarized a second time.

Judging from the on-site investigation, the perpetrator was burglarized after climbing from the stairwell to the window of the master bedroom room, this place is not reinforced, and your home may also be stolen, therefore, I suggest that your home should be placed with an anti-theft net, if it is really because of economic problems do not install an anti-theft net, then at least sleep at night or when no one is at home during the day, remember to close the window, and then bolt it inside.

Moreover, the external door of your home is a wooden door, this kind of door is very easy to open, I hope this door is also changed, it is best to replace it with an anti-theft door, the security factor of the anti-theft door is much higher.

Third, don't keep large amounts of cash at home. You say how convenient it is to keep it in the bank. Why do you keep cash at home? Also, it is better to put small and valuable things such as gold jewelry in a hidden place, you come, I will tell you. ”

After I finished speaking, I told Hu Pingkai where to put his jewelry.

Xiao Ke, Xiao Cao, Xiao Lu and others looked at me with wide eyes, not knowing what I said.

"Okay, I've said everything that needs to be said, you take us to Cao Xiaobo's house to have a look." I stood up and said.

On-site investigation of Cao Xiaobo's home. I asked Xiao Cao to conduct the survey. Xiao Ke cooperated, and he completely surveyed in accordance with the order and process I just made, and after the survey, I nodded with satisfaction.

Once again, we stood behind the courtyard. Xiao Ke and Xiao Cao are ready to get in the car.

I shouted to stop. And said:

"What's wrong. Are you going to go? ”

Xiao Ke asked with a smile:

"Captain Li, the scene of the two cases has been fully investigated, and this should be explained. You've said it all again, so there's probably nothing else to do. ”

I shook my head and said:

"There is still a difference between the two of you and the scene of the two cases, do you know what kind of photo it is?"

Xiao Ke immediately understood, patted his head and said:

"Yes, yes, the on-site orientation photos have not been taken."

The two immediately took pictures.

After we got in the car, I asked Xiao Lu to get in the car too.

"I'm sorry, Captain Li, we shouldn't have destroyed the scene, leaving so many footprints on the scene and causing you trouble." Xiao Lu's sincere voice.

I smiled and said:

"Xiao Lu, when you go to the police, in addition to doing a good job of visiting, another important thing is to protect the scene, you see, just now on the ground of Hu Pingkai's living room, I found that your footprints stepped on the footprints of the perpetrator, which is a very serious mistake. I hope you don't have that next time. ”

Xiao Lu kept nodding yes, while Xiao Ke and Xiao Cao looked at Xiao Lu and covered their mouths and smiled.

I went on to say:

"When you arrive at the scene, you can arrange for a person to go to the scene to see the situation, but you must wear foot covers, if you don't have foot covers, use shoe covers, and don't move, let alone touch anything on the scene, understand?"

Xiao Lu continued to nod.

"Xiao Ke, Xiao Cao, you tell Xiao Lu about the on-site investigation of these two cases, Xiao Lu, you make a record, go back and report to Team Leader Amin, we won't go to the office." I said.

Xiao Ke immediately said:

"Comrade Xiao Lu, I only said it once, you must remember it."

Everyone laughed, and when they were done, Xiao Lu said:

"My Comrade Xiao Ke, this momentum is very good, a bit of a big fan. I actively cooperate with you, I will definitely remember it word for word, please rest assured, leader.

There was another burst of laughter, and Xiao Ke continued:

"I'm just exercising my self-confidence, don't hit me like this.

Let's gossip less, and get back to business. The general situation in front of this, our Captain Li said it personally, I will not repeat it, I will talk about the key points below, the process of Hu Pingkai's crime is as follows:

Perpetrator A climbed a window into the stairwell and then opened the wooden door of the living room to let Perpetrator B in. The two have a division of labor in the room, A mainly rummages through items in the master bedroom, finds jewelry on the bedside table, and finds cash in the wardrobe, both of which have A's footprints on the ground. Perpetrator B rummaged through bookcases and drawers in the study, but found no valuables in these two places.

In terms of traces, there are two types of footprints and multiple fingerprints. ONE TYPE OF FOOTPRINT IS A TOURIST SHOE WITH A BLOCK PATTERN, THE LENGTH IS 25CM, AND IT IS INFERRED THAT THE PERPETRATOR WEARS SIZE 40 SHOES; THE OTHER FOOTPRINT IS A CIRCLE-SHAPED TOURIST SHOE WITH A LENGTH OF 24.5CM, AND IT IS INFERRED THAT THE PERPETRATOR WEARS A SIZE 39 SHOES. Judging from the footprints, it is certain that the people who broke into the house should be two people, as for whether there is anyone outside, it is difficult to say from the analysis of the scene. The two people who committed the crime in this house, one tall and one short, judging from their footprints, are both young. Fingerprints are Captain Li personally took us to deal with them, the effect of the treatment is very good, from the point of view of the remaining parts, it can be sure that the perpetrator left, these two fingerprints have the conditions for checking the file on the remote fingerprint system, if you are lucky, you can compare. If I win the match, I will inform Lu Daxia immediately.

That's all I have to say, I don't know if there's anything else Lu Daxia doesn't understand? ”

After Xiao Ke finished speaking, looking at me, I nodded slightly.

Xiao Lu just recorded and didn't say anything.

Xiao Cao continued:

"The scene of Cao Xiaobo's house was seriously damaged, and the time of the crime is a little long from now. But. After hard work, we still found a kind of footprint on the windowsill, which was compared by Captain Li on the spot, and it was the same as the A footprint pattern of Hu Pingkai's house.

The two cases were entered in the same way and the footprints were the same, so the two cases could be investigated together.

That's all I have to say. ”

After Xiao Cao finished speaking, looking at me, I nodded lightly and said:

"You're both done?"

The two of them nodded as well.

I took out my cigarette. Each person was given one. Then he said:

"When we survey the site, we want to conduct a comprehensive investigation, extract trace evidence, and conduct on-site analysis. Complete the work of collusion and merger cases.

But our purpose is definitely not here. We must have the awareness to solve the case. It is necessary to solve the case through our on-site investigation, or to guide the solution of the case.

In these two cases, fingerprint checking is of course an important way to solve the case. Footprints played an important role in the merger case, which you all said very well on both fronts. However, when we investigate the scene, in addition to having the awareness of solving the case, we should also guide the police station to solve the case, because many ways and means to solve the case are not something that our technical team can complete, and neither of you has provided Xiao Lu with a complete set of work measures and investigation ideas.

Did you notice just now, during the on-site visit, I asked very specifically, among the stolen items were rings, earrings, and these jewelry had obvious characteristics, so an investigative measure followed, that is, there was control of the sale of stolen goods, which is an important work in the security management of the police station.

Or during the on-site visit, I casually asked, and I asked about the theft of Cao Xiaobo's house in this community, and the time interval between the two thefts was not long, only three days apart, what does this mean? This shows that the two perpetrators will continue to commit crimes, and it is very likely that they will still commit crimes in this community, so another investigative measure will come out, that is, arrange for people to wait for arrest near this community.

Let me talk about the work of collusion cases, these two cases can be combined in tandem, but you did not analyze it deeply, from the fact that the perpetrator turned over a lot at the scene, knew that someone was sleeping in the room, and dared to steal, and the way of breaking into the house was very reasonable, this shows that these two people are very likely to have cases, and there were cases before, so the scope of the collusion cases must be further expanded, and this series of cases is definitely more than these two cases.

Also, the time of the crime was between 2 o'clock and 7:30 in the morning, and Xiao Ke also introduced that these two people are relatively young. It's so late at 2 a.m., where will these two young people come from? It may have come out of their house, but it's more likely that it came out of an Internet café! This has formed another investigative measure, that is, to go to the Internet café for investigation according to the two footprints at the scene, which is also a way to solve the case.

Also, that is to do a good job of safety precautions, this prevention work is more important than our solving the case, just now in Hu Pingkai's house, I said the opinion of prevention, Xiaocao, you heard it, but in Cao Xiaobo's house, you did not put forward this opinion, which shows that you have no awareness of teaching the masses to prevent at all. In the victim's house, many people do not know how to take precautions, and we must teach them how to prevent them. Xiao Lu went back to the police station, and he had to tell the police of this segment and ask him to come over and tell the management department of this community to do a good job of safety precautions.

The affairs of the masses are never trivial, and we must take them seriously, which is also a way to improve ourselves. I took you to the police this time, just in the hope that you will improve your intentions, improve your level, and take professionalism and standardization in the future, so that we can be called professional criminal technicians. ”

Xiao Ke, Xiao Cao, and Xiao Lu carefully remembered it in their notebooks.

"Captain Li, are you done?" Xiao Cao looked up and asked.

"I'm here today, my mouth is dry, you still want me to say?" I said with a smile.

Everyone burst out laughing.

小科 says:

"Captain Li, we have never seen the scene before you have done this, I always think that everything will be fine after the on-site investigation is completed. Who knew that you had come up with so many methods to solve the case from the scene of these two simple cases, including controlling the sale of stolen goods, capturing and waiting, expanding collusion, Internet café investigation, fingerprint checking, and even preventive measures, which really opened our eyes! ”

"I can learn real things by following Captain Li out to investigate the scene! What a benefit today! The leader's mouth was dry, so I immediately bought water to drink. Xiao Cao said with a smile.

"That's it, it's better to save your salary, keep it for friends, and I'll go back to the team to drink water." I said.

Everyone laughed again.

The scene drawings of the two cases were not drawn at the scene, and after they came back, Xiao Ke and Xiao Cao drew on the computer, and the whole frame came out, and the details were drawn by looking at the photos, after all, it was the first time they did this, and there was still a certain degree of difficulty.

When Xiao Ke and Xiao Cao introduced the two scenes at the case meeting, they made a comprehensive report from the aspects of on-site investigation, on-site analysis, investigation measures, prevention, and collusion of cases, and Captain Zheng didn't come back to his senses for a long time.

"Captain Zheng, I'm done." Xiao Ke reminded.

"Okay, you said it very well, and it is also very comprehensive, it seems that this Captain Li is really a strong general here, and there are no weak soldiers under him!" Captain Zheng said.

In this way, Captain Zheng and I took everyone to see the scene, guided, supervised, and inspected at the scene, and for a time, the quality of on-site investigation was significantly improved, the extraction rate of fingerprints, footprints, tools and other traces was significantly improved, and the level of on-site analysis and investigation work suggestions were greatly improved.

Captain Zheng and I also slowly let everyone work.

That's what I want to do! It's about this kind of big progress!

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