"The policy is gone?" Guan Zheng asked.
Li Chongyang nodded and said: "We really didn't find the insurance policy. We will search again, but don't hope too much."
Xu Jiuyan screamed: "This case won't just die here, right?"
Guan Zheng has also seen many cases. Naturally, she is not as anxious as Xu Jiuyan, and said: "Who told you this is a case? Suicide is a criminal case?"
"Then what are we doing so hard?" Xu Jiuyan said.
Guan Zheng was really overwhelmed by Xu Jiuyan’s innocence, and said, “Will you use your brain? If it’s really useless, will I let you check? In this case, the source of Wang Dawei’s medicine is unknown, although potassium dichromate is not. Controlled drugs, but it is difficult to get them.
Next is Wang Dawei's insurance, 2 million insurance, where does he get so much money? A person who is old and young chooses to commit suicide, and he is afraid that he may not be able to jump off the building and prepare a poison. What does this mean? This shows that he is determined to die. So the greatest possibility is that after Wang Dawei's death, this insurance will have compensation. Of course we have to investigate so many suspicious points. "
"Then you mean, Wang Dawei cheated on insurance?" Xu Jiuyan asked in confusion.
Guan Zheng shook his head and said, "This is not good enough. The point is where the two million yuan came from. There is also the insurance policy and account books of Fatty Qian, which must be checked."
"clear."
The money and fat man's heart is really big enough, sitting in the conversation room as if there is nothing wrong with people, the police brought the meal without a bite. Until the police sent him out of the gate, it was the plump face.
But what everyone did not expect was that two hours after Fatty Qian walked out of the police station, someone sent a kidnapping video.
Guan Zheng calmly watched the video, but there were no clues. Xu Jiuyan said angrily: "This lack of moral goods, let him die."
Guan Zheng smiled slightly and said, "I agree with your opinion."
"Are you really in a hurry?"
Guan Zheng leisurely brewed a cup of tea: "What can we do if we are in a hurry? What we have to do now is to wait for the kidnappers to take the initiative to contact us."
Sure enough, it didn't take long for the kidnappers to send the latest news. In the video, Fatty Qian was tied to a dark room with his hands trapped behind him, and the rope around his neck hung from the roof of the shed. The most peculiar thing was the sand under his feet. On the surface, the sand is constantly seeping, making Fatty Qian slowly lose his point of borrowing, and the rope around his neck is getting tighter and tighter. The surrounding situation cannot be distinguished, which brings great difficulties to rescue.
Xiao Huan'er looked at the background of the video and said: "If this goes on, Fatty Qian can't last for three hours."
Guan Zheng asked Li Chongyang, "Has the video source been found?"
"No, I can't find it at all. The address is encrypted with multiple layers, and the location is difficult to determine." Li Chongyang said.
Guan Zheng said: "Take it to Guan Nuo and let her continue the investigation. A result must be found."
Li Chongyang just got up, Guan Nuo has already arrived. Guan Nuo's smile was still so dazzling, Guan Zheng beckoned and said, "Come and sit down."
Guan Nuo was not welcome, and sat down and said, "I'm here to help."
"Is there any progress? Has the address been found?" Guan Zheng asked.
Guan Nuo said in a hurry, "I found it."
"Where?" Everyone's eyes focused on Guan Nuo.
Guan Nuo spoke slowly and said, "In Uganda."
When Guan Zheng heard about this weird place, he knew that it was not a good result and said, "You were taken in a ditch, right?"
Guan Nuo said awkwardly, "Where is it, I have worked hard, okay?"
Guan Zheng patted Guan Nuo on the shoulder and said: "I know I know, what about you, please check this new one again. If you are still in Africa, I will kick you over!"
Everyone covered their mouths and laughed. Guan Zheng said loudly, "Why are you laughing? Hurry up and find a way to go."
Guan Nuo sat in front of the computer, facing a dozen screens, quickly moving his fingers. Guan Zheng's brain turned like a spinning top, Xu Jiuyan was still chirping in her ear and asked: "How to deal with the kidnapping case?"
Guanzheng introduced: "Kidnapping is a criminal act. The process of illegally violating the victim to achieve hostage-taking, usually through such acts to achieve extortion, extortion or other conditions or purposes.
The police's approach is to determine the information or location of the kidnapper based on the kidnapper's ransom demand or the loopholes in the negotiation process, and then successfully rescue the hostage. But Fatty Qian is not so lucky. The kidnapper he encountered is not an ordinary kidnapper. This kidnapper has almost no loopholes, at least we haven't seen it now. "
"Then we can't catch it?"
Guan Zheng said: "Of course not. We usually extract the background sound of a video or audio file, isolate and slice it, determine the area where the sound is located, and determine the location of the hostage."
Xu Jiuyan nodded and said, "I know this. But the strange thing is, why didn't the kidnappers give us information, or their needs?"
Guan Zheng went on to say: “According to common sense, kidnapping must be purposeful, but close to 10% of kidnappers are kidnapped randomly or for demonstration purposes. He doesn’t contact us doesn’t mean they have no demand, but because they don’t. Time is up."
"It depends on time to ask for money?"
Guan Zheng said: "Of course, in the early stage of the kidnapping, the police's thinking is still unclear, and the environmental analysis is indeed very detailed. In the later stage of the kidnapping, when the police and the kidnapper are tired, the experienced kidnapper will choose During this time, carry out a surprise attack."
"Environmental noise is separated." Li Chongyang put the sound out through the loudspeaker, and the office became quiet for an instant. Everyone was listening to this sound, including the sound of cars, shouts, and buses. It was messy and chaotic inside, but Guan Zheng also heard something different, Xu Jiuyan was anxious: "Say it, I'm so anxious."
Guanzheng listed them one by one. There were many buses passing by, and there was a school nearby because I heard the whistle. There is also the sound of people rushing out.
"The sound of people swarming?"
Guanzheng nodded and said, "Yes, it may be a subway station, a movie theater, or a train station. This type of place is crowded with people."
Xu Jiuyan recorded it and said: "Then we are looking for a place with at least one school, with many buses passing by, and close to a subway station, a grand theater, or a movie theater."
"Then do not act quickly?"
Xu Jiuyan asked while checking the map, "How can you determine the surrounding environment by listening to the background sound? Especially the sound of the flow of people, this is the strangest thing in it."
"Don't understand? This is the simplest Doppler effect." (End of this chapter)