Chapter 093 Investigation Verification Tools, No Measures for the Climax of the Case

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

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

I nodded and said:

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

"Why not?" Xiao Ke asked.

"On the night of the incident, there was a power outage. Naturally, she was not hurt. Xiao Cao replied.

I nodded, and continued:

"And I understand why the perpetrator took the light bulb and switch. It seems that he put down the light bulb before committing the crime, so that the victim would not turn on the electric light and see him, and he took the light bulb after committing the crime because he was afraid that the light bulb would leave fingerprints and other traces on the light bulb......"

"Captain Li, there are many cases where there are no sockets, so how can the perpetrator connect the electricity on the crime tool?" Xiao Cao asked.

I smiled and said:

That's a good question. There is no socket next to the bed and the victim is injured, there are those pushbutton switches, don't we see the button switches at the scene? That is, the perpetrator took it, and the perpetrator turned on the switch before committing the crime, and then connected the two wires of the switch to the crime tool to infringe on the victim. ”

Captain Zheng asked a new question:

"200,000 ah, this rural lighting power supply is 220 volts, if you don't do it, you may electrocute the victim, then it is easy to kill someone."

"That's a real problem. The fact that so many victims were injured without fatal injuries only shows that the perpetrator has a good grasp of the degree and understands the knowledge of electricity. I said.

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

"People who know and can use electricity are not necessarily electricians, but this possibility cannot be completely ruled out. We can run a reconnaissance experiment. I said.

"Captain Li, how about the experiment, this can't be done on people, right?" Cao's voice.

"You can't do experiments on people, we buy a pig to experiment." I said.

It's a good idea, and there's a lot of interest.

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

The results show: Just get the timing right. If the intensity is well controlled, there will be no fatalities, and the perpetrator should know a certain amount of electrical knowledge or have experience in it, and it is impossible to conclude whether he is an electrician or not.

The results of the experiment on the length, depth, and interval of the scars are exactly the same as those in our field. It is thus completely certain that the tools left behind are those left by the perpetrators.

Evening meeting. The technical group gave a comprehensive report on the experiment.

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

"The materials used to make the tools are relatively ordinary. It's just that we feel a little unsure about the problem of electricity, so we did a reconnaissance experiment and asked the people at the power supply station. It is not possible to draw a professional connection. Captain Zheng explained.

"It's a great pity that the perpetrator passed by us." Ai Detachment said.

"This SWAT is so angry with me, I can't hold back my anger!" Director Tang said.

"Director Tang, I asked Wan Jinyou and others in detail about the situation in the afternoon, he has been having diarrhea for the past few days, and he insists on working with illness. As far as I know, quite a few of the investigators are sick, and if this continues, I am afraid that the special team will be tired. Do I think the special class is thinking about taking a break and taking a break? Director Zhang asked.

"Director Zhang, do you think it's appropriate to rest at this time? Not only can we not rest, but we must also intensify our efforts to solve the case as soon as possible! Director Zhang, you should get to the bottom of the matter and do a good job in the treatment of sick comrades, we must not reduce the number of people due to illness! Director Tang asked.

Director Zhang nodded.

"What do you think about the next step of the investigation, let's discuss it." Director Tang changed the subject.

Tan Team Leader Says:

"I think it's important to continue to keep capturing and waiting. Captain Li's analysis of the perpetrator is very good, judging from the situation of the case, the perpetrator will continue to commit the crime, as long as we hold the copper mine town and the East Copper Highway according to Captain Li's arrangement, we will definitely be able to catch the perpetrator. Therefore, this investigative measure can only be strengthened. Regarding the details of the capture and waiting, we have discussed it again, please rest assured that this situation will not occur again in the early hours of this morning. ”

张大 says:

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

Director Tang stopped Brigade Zhang's words and said:

"Brigade Zhang, don't mobilize the masses. We thought of other ways. ”

Zhang's brigade immediately stopped.

Teach Liu says:

"Captain Li is not only responsible for the situation at the scene, but also pays attention to the matter of catching and waiting, and also pays a return visit to the case, and I suggest that the case is completed by the field team, so as to ensure that Captain Li has more time to study the case and study the scene."

"Okay, this is a good suggestion, and the work of this return visit case will be taken care of by the second field team." Director Zhang said.

"What about intelligence?" Director Tang asked.

Captain Hu immediately replied:

"For general special situations, we have arranged 26 people, and there are also 8 special cases for special projects. With the cooperation of other teams, we were able to arrest a total of 23 members involved and crack 139 cases of various kinds. However, none of the information can reflect the circumstances of this series of cases. ”

"Captain Hu, you are in charge of intelligence work. You'll have to think of ways and measures. Although so many cases have been solved and so many perpetrators have been arrested through special intelligence, you must make it clear that so many of us are here for this series of cases, and the focus of your work should be on this series of cases. I suggest that you strengthen the management of special intelligence work, and that rewards and punishments should be given to those who are rewarded, and that the enthusiasm of special intelligence should be fully aroused, so that it can be used by us and by special projects. Director Tang's voice.

Captain Hu nodded.

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

Director Wan replied:

"Report to Director Tang. There are too many migrants in the township, many of whom do not have a fixed address and occupation, and some do not even have registration information. The difficulty of the investigation is very large, and we have adopted the method of sharding and contracting to people. ”

"Director Wan, I don't want to hear you talk about difficulties, I know that difficulties exist objectively, and you can find a way to overcome the difficulties yourself, as long as I have the result, then find out the perpetrator! The perpetrator lives in the township, right under our noses. You're going to have to find a way to find the perpetrator anyway! 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 the work one by one.

Director Zhang asked:

"What do the comrades of 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 various police stations in the county. At present, the reasons and basis for the merger are insufficient. It is not possible to draw accurate conclusions. It can only be said that the base is relatively clear.

I would like to talk about the technical part of the investigative measures in the case. At present, the quality of the imprinted footprint samples is poor, and many samples cannot be screened and compared. I hope that all investigators will be more conscientious and responsible in their work. Blood samples taken from suspects. To expand the number, we have received only 1,579 blood samples so far. ”

Director Zhang went on to say:

"There are many investigators who have a misconception that it is useless to take blood samples, and at most they can only check for the type of bleeding, and they cannot determine the perpetrator. I remind these investigators that the objective screening of this blood type is always more scientific and direct than the subjective investigation of your investigation and interview. You don't need this scientific and direct method, you can check the object according to your own feelings, which is very dangerous. There is only one person who committed the crime, what if the wrong one is arranged? Therefore, I emphasize that all the objects of investigation, in addition to the basis of field investigation, should also be investigated in combination with footprints, blood type, etc.! ”

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

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

"Since no one has said anything, let's adjourn. Captain Lee, you stay and continue the meeting. Director Tang's voice.

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

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

"Captain Li, is it inconvenient for you to say something at the conference?"

I smiled and said:

"I really can't hide anything from the leader's sharp eyes."

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

"I have a bad feeling that the case may be high." I shook my head and replied.

"Captain Li, this case has happened, so 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 the crime." It continues to be my voice.

"Captain Li, what do you mean by that?" Detachment Ai continued to ask.

"One of our weapons at the moment is to capture the waiting measures, but from today's situation, I am very worried about the effect of the waiting measures." I replied.

"Captain Li, you will make it clear." Detachment Ai looked at me, a little nervous.

I nodded and said:

"I think that for some time, the perpetrators did not want to commit crimes, but felt that the wind and grass were blowing, and they felt that our soldiers were pressing, and they did not dare to continue to commit crimes boldly, and they were in a hidden period, and this period would not be too long. Therefore, he couldn't hold back and came out to commit another crime today, in a sense, this is a tentative nature. He tried it, and the results were obvious, and we took the catch and wait measures to let him try it out.

He couldn't have waited for us to catch him, knowing that we were going to capture him. He will inevitably change his measures, for example, he can leave Coppermine Town in the first half of the night when it is crowded; After committing the crime, when it was dawn and there were many people, we would go back to the town, and when there were many people, we couldn't find him at all, let alone catch him.

If this is the case, then another peak of crime is coming, and we must prepare new and effective investigative measures to face the upcoming peak of crime. ”

"In the countryside, we have also arranged for people to capture and wait." The voice of the Ai detachment.

"We have so few people on the waiting list, and the rural areas are so large that we are a drop in the bucket." My answer.

The meeting room was confined to silence.

"What to do? Knowing that he would commit a crime, and we couldn't deal with it, what did everyone say? Director Zhang was a little annoyed.

No one answered Director Zhang's question, and everyone lowered their heads, occasionally looking up and observing the movements.

……

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