teach me how not to be the police

Chapter 093 Investigative experimental verification tools, there is no way to commit a crime

In the afternoon, I called Captain Zheng and we all studied the tools left behind by the perpetrator.

"I really didn't expect the perpetrator to use such a tool." Captain Zheng said.

I nodded and said:

"I now understand why Fan Qiuju was not injured in the '1990.06.03' case."

"Why not?" Xiao Ke asked.

"On the night of the incident, the power went out. Naturally, she was not harmed." Xiao Cao replied.

I nodded and continued:

"Besides, I also understand why the perpetrator took away the light bulb and the switch. It seems that he turned off the light bulb before committing the crime, lest the victim turn on the light and see him, and he took away the light bulb after committing the crime, because he was afraid of leaving fingerprints on the light bulb Wait for the trace..."

"Captain Li, there are many cases where there are no sockets, so how did the perpetrators connect the power to the crime tools?" Xiao Cao asked.

I smiled and said:

"That's a good question. At the scene where there was no socket by the bed and the victim was injured, there was that kind of button switch. Didn't we see the button switch at the scene? That is, the perpetrator took it away, and the perpetrator was committing the crime The switch was turned on before, and then the two wires of the switch were connected to the crime tool to infringe on the victim." Captain Zheng raised a new question:

"20. This rural lighting power supply is 220 volts. If it is not done well, the victim may be electrocuted, and it is easy to die."

"This is indeed a problem. So many victims have been injured without fatal situations, which can only show that the perpetrator has a good grasp of the knowledge of electricity." I said.

"Could the perpetrator be an electrician?" Xiao Ke asked.

"A person who understands electricity and knows how to use electricity is not necessarily an electrician, but this possibility cannot be completely ruled out. We can conduct a detection experiment." I said.

"Captain Li, how about an experiment? It can't be done on humans, right?" Xiao Cao said.

"It is definitely not possible to conduct experiments on humans. Let's buy a pig for experiments." I said.

It's a good proposal, and there's a lot of interest in it.

In the afternoon, we all conducted experiments on pigs and consulted relevant professionals from the power supply station.

The results show.Just take your time.If the intensity is well controlled, there will be no death. The perpetrator should know a certain amount of electrical knowledge or have experience in this field, so it is impossible to conclude whether he is an electrician.

The experimental results on the length, depth, interval and other data of the scars are completely consistent with our on-site situation.It is thus completely determined that the leftover tool is left by the perpetrator.Meeting tonight.The technical group fully reported the experimental situation.

"Can't you determine his occupation from the tools?" Director Zhang asked.

"The materials used to make tools are relatively common. It's just that it's a little difficult to grasp the issue of electricity consumption. We conducted investigation experiments and asked the people in the power supply station. We couldn't draw an occupational correlation." Captain Zheng explained road.

"It's really a pity that the perpetrator passed us by." Team Ai said.

"This special police officer pissed me off, I couldn't hold back my anger!" Director Tang said.

"Director Tang, I asked Wan Jinyou and others about the situation in detail this afternoon. He has been suffering from diarrhea for the past few days and insists on working while sick. According to my understanding, many investigators are sick. If this continues, I'm afraid The class is going to be exhausted. I wonder if the special class is considering taking a break and taking a rest?" Director Zhang asked.

"Director Zhang, do you think it is appropriate to take a break at this time? Not only can we not rest, but we must intensify our efforts to solve the case as soon as possible! Director Zhang, do a good job in the treatment of sick comrades. We must not And downsizing!" Director Tang asked.

Chief Zhang nodded.

"For the next step of investigation, if you have any opinions, let's discuss it." Director Tang changed the subject.

The team leader said:

"I think it is necessary to continue to catch and wait. Captain Li's analysis of the perpetrator is very good. Judging from the situation of the crime, the perpetrator will continue to commit crimes. We only need to follow Captain Li's arrangement to guard the copper mining town and the east. The perpetrator will definitely be caught if the copper highway is used. Therefore, this investigative measure can only be strengthened. Regarding the details of the capture and waiting, we have discussed the details of the capture and waiting team. Please rest assured that the leader will never happen again this morning The situation."

Team Zhang said:

"I suggest further mobilizing the masses to participate in solving the case..."

Director Tang stopped Team Zhang's words and said:

"Brigade Zhang, the masses should stop mobilizing. We think of other ways."

Team Zhang immediately stopped.

Professor Liu said:

"Captain Li is not only responsible for the situation at the scene, but also pays attention to the capture and waiting, and also pays a return visit to the case. I suggest that the return visit of the case should be completed by the field team. This will ensure that Captain Li has more time to study the case and study the case. on site."

"Okay, that's a good suggestion. The work of returning to the case will be taken care of by the second field team." Director Zhang said.

"What about intelligence work?" Director Tang asked.

Captain Hu immediately replied:

"For general special cases, we have arranged 26 people, and there are also 8 special case special cases. These special cases provide a lot of information. With the cooperation of other groups, we have arrested 23 members involved in the case and cracked various cases. 139 cases. However, all intelligence cannot reflect the circumstances of this series of cases.”

"Captain Hu, you are responsible for intelligence work. You should think of ways and measures. Although so many cases have been solved and so many perpetrators have been captured through special circumstances, you have to understand that we are so Many people are here for this series of cases, and your focus should be on this series of cases. I suggest that you strengthen the management of special cases, rewards and punishments, and fully mobilize the enthusiasm of special cases for my use. , for the project." Director Tang's voice.

Captain Hu nodded.

"Director Wan, how is the situation in the township?" Director Tang asked.

Director Wan replied:

"Report to Director Tang. There are too many migrants in the township. Many people have no fixed address and occupation, and some even have no registration information. The investigation is very difficult, and we have adopted the method of assigning tasks to individual people."

"Director Wan, I don't want to hear you talk about difficulties. I know that difficulties exist objectively. You can find a way to overcome them yourself. As long as I get results, I will find the perpetrator! It's under our noses. You have to find a way to find the perpetrator no matter what!" Director Tang's voice.

"I know. I know." Director Wan's voice.

For the other groups, Director Tang and Director Zhang asked questions one by one, and arranged work group by group.

Director Zhang asked:

"What do the comrades in the technical team think?"

Captain Zheng immediately replied:

"According to the arrangement of the headquarters, we have conducted a thorough investigation and investigation of the same type of cases in all police stations in the county. At present, the reason and basis for the merger are not sufficient. It is impossible to make an accurate conclusion. It can only be said that the bottom line is relatively clear. .

Let me talk about the technical aspects of the investigative measures of the case.At present, the quality of printed footprint samples is poor, and many samples cannot be screened and compared.I hope that investigators will be more serious and responsible in their work.Taking blood samples from suspects.To expand the number, as of today, we have only received a total of 1579 blood samples. "

Director Zhang went on to say:

"Many investigators have a wrong understanding that it is useless to take blood samples. At best, they can only check the blood type and cannot determine the perpetrator. I remind these investigators that the objective screening of blood type is better than your subjective screening through investigations and interviews. It comes scientifically and directly. You don’t use this scientific and direct method, and you investigate the target based on your own feelings, which is very dangerous. There is only one perpetrator, so what if you make a mistake? Therefore, I emphasize, All objects to be screened, in addition to the screening basis for field investigations, should also be screened in combination with footprints, blood types, etc.!"...

"Captain Li, do you have any ideas?" Director Tang asked directly.

I didn't say anything, just shook my head.

"Since everyone has nothing to say, let's adjourn the meeting. Captain Li, you stay and continue the meeting." Director Tang's voice.

I'm a little strange, why did you keep me here for a meeting?Do you want to leave me alone for the meeting?

After the staff dispersed, Director Tang said with a smile:

"Captain Li, do you have something to say at the meeting?"

I smiled and said:

"Nothing can be hidden from the leader's piercing eyes."

"Haha, then you can talk now." Director Tang said with a smile.

"I have a bad feeling that the number of cases may increase." I shook my head and replied.

"Captain Li, now that the crime has happened, we can better capture the perpetrator. From a certain point of view, this is more conducive to our investigation." Ai Detachment said.

"The perpetrator may jump out of our encirclement to commit crimes." It continued to be my voice.

"Captain Li, what do you mean?" Team Ai continued to ask.

"One of our current sharp weapons is the capture and waiting measures, but judging from today's situation, I am very worried about the effect of the capture and waiting measures." I replied.

"Captain Li, please speak clearly." Team Ai looked at me a little nervously.

I nodded and said:

"I think that for a period of time, the perpetrators didn't want to commit crimes, but felt that the wind was blowing, that our soldiers were under pressure, and they dared not continue to commit crimes boldly. They were in a hidden period, and this period will not be too long. Therefore "He couldn't hold back, and he came out to commit crimes again today. In a sense, this is a kind of tentative nature. The result of his trial is obvious. We took measures to catch and wait for him to try it out."

On the basis of knowing that we are catching and waiting, it is impossible for him to wait for us to catch him.He will definitely change his measures. For example, he can leave the copper mining town in the first half of the night when there are many people; At that time, we couldn't find him at all, let alone capture him.

If this is the case, then another peak of crimes is coming. We must prepare new and effective investigation measures to face the coming peak of crimes. "

"In the countryside, we also arranged for people to catch and watch." Ai Detachment's voice.

"We have too few catchers, and the rural area is too large. We can't do enough." My answer.

The meeting room fell into silence.

"What should we do? Knowing that he will commit a crime, but we can't deal with it, what should we do?" Director Zhang was a little annoyed.

No one answered Director Zhang's question. Everyone lowered their heads, and occasionally raised their heads to look around and observe the movement.

……

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