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Flames of Sadness ¡¤ Sixty-eight

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    As several surveillance videos were opened, it was basically consistent with what Ye Qian introduced. The suspect was really armed to the teeth, with a cap, a mask, and many gloves. In addition, the video was not very clear and there was no analysis at all.  the value of.

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Fat Lei double-clicked the left mouse button and opened a video file named "Crossroads".  Obviously, this is an extended video recording the suspect's coming and going.

    From the screen, we can see that the suspect is walking south along the direction of the intersection. His walking posture is much more relaxed than when he was selling cars before.

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? After watching this video, Fat Lei clicked on another one.

    After dozens of minutes, more than a dozen videos were played, and the suspect completely disappeared from our sight.

    "Brother Lei, if you cut all these videos with suspects into one video, I seem to have seen some clues." I said with a frown.

    "What? Did you see who the suspect is?" Fat Lei and Ye Qian exclaimed at the same time.

    "No, you cut it first, I need to study it carefully!" I replied with a serious expression.

    "Okay, give me twenty minutes!" Fat Lei quickly arranged all the video files and started cutting them with the software.

    In the time it took to smoke three cigarettes, he put a new video with only the suspect's image on the desktop of his computer.

    ¡°Xiaolong, that¡¯s it!¡± Pang Lei stood up and gave me his seat.

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? I opened this ten-minute video.  Ye Qian and Fat Lei both stood behind me curiously, wanting to see what I wanted to study.

    I watched the video over and over again five times, and Fat Lei and Ye Qian didn¡¯t even dare to show off their anger when they were next to me.

    "Brother Lei, cut out the scene where the suspect is walking on the sidewalk for me!"

    "no problem."

    After he finished cutting, I focused all my energy on this video. Ye Qian couldn't stand it anymore and sat down on the sofa. Pang Lei also rubbed his reddish eye circles beside me.  Hold on.

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? At this point, I paused the video and said to both of them, "I think I know who the suspect is!"

    "What?" Fat Lei and Ye Qian shouted directly.

    "Yes, if my observation is correct, this suspect should be the inmate Geng Tianchou who had a good relationship with the deceased Liao Guangyong."

    "What, you can tell based on this video that only shows the suspect's back? Are you correct?" Fat Lei asked incredulously.

    "I'm not looking at his back, I'm looking at the way he walks!"

    "Why do I become more confused the more you talk about me?"

    ¡°Stop being so nagging, hurry up and say it!¡± Before Fat Lei could finish his words, Ye Qian kicked me on the leg of the bench and urged.

    "Why are you so anxious?"

    "Are you going to say it or not?" Ye Qian glared at me and started rolling up her sleeves.

    "Okay, let me say, in order for you to understand, I have to explain a few terms to you."

    After that, I pulled out a blank A4 paper from the printer, and casually drew a horizontal x-coordinate axis and a vertical y-coordinate axis on it. Then I drew two shoe prints on the left and right ends of the y-axis.  , after doing all this, I said: "The inevitable response of the human nervous system to changes in environmental stimuli will play a role in all aspects of footprint formation, and ultimately manifest as the characteristic reactions of the footprints. When we study these characteristic reactions  Before, we need to understand three terms, step length, step angle, and step width.¡±

    At this point, I pointed to the picture I just drew and explained: "Suppose these are a few shoe prints we walked by ourselves. I put them in the x-axis and y-axis areas for analysis. This step length is easy to understand.  , is the length of a step. The step angle is the angle between the vertical line of your shoe print and the y-axis, because normal people will basically abduct their toes when walking, especially people with splayed legs and the longest step angle.  Obviously. Of course, there are some special cases, such as patients with 'x'-shaped legs and 'o'-shaped legs. Their step angles must be treated differently. The step width is also easy to understand, which is between the shoe print and the y-axis.  width."

    "In the normal walking process of ordinary people (except for a series of special circumstances such as drunkenness and illness), these three values ????will have certain rules to follow. To give a simple example, women usually have shorter step length and wider step width.  Wide and small step angle. This is determined by the physiological structural characteristics of women, but is also affected by the acquired movement formation process. For example, the step angle of women learning dance is significantly larger than that of ordinary women.??Group.  "

    With that said, I drew their attention to the computer screen again.

    "It's not enough for us to just understand these things. We also need to know how to observe a person's walking posture. Human walking is a complex coordinated movement of the human body. During walking, the human head, trunk, limbs and other organs move in a certain manner.  They coordinate with each other in a coordinated manner, move repeatedly and regularly, and complete the walking movement together. Among them, each link affects each other and restricts each other." Next, we analyze one by one:

    "The head is the head and center of the human body. As the saying goes, one hair moves the whole body, so the posture of the head when walking will inevitably affect the formation of footprints. When the pace speeds up, the center of gravity of the body will also shift with the swing of the head.  This can directly affect the stepping motion of the feet, thereby changing the characteristics of the step."

    "The trunk is the backbone of the human body. Due to the vast differences in personal physiological habits, each person has different balance conditions during walking. Therefore, each person will have their own stereotyped postures and movements such as lowering the head, nodding, and shaking the head during walking."

    "During human walking, the limbs mainly swing in conjunction with the trunk to accelerate and increase mobility, that is, to coordinate and balance. The swing amplitude of the upper limbs directly affects the step length, step width, and step angle.  "

    "When the walking posture of the human body changes, the swing amplitude of the human body organs also changes, the walking speed becomes faster or slower, and the walking characteristics also change accordingly. For example, at a crime scene, when a criminal suspect is afraid of a certain danger,  When walking, a cautious state will occur. The speed will slow down during walking, which is reflected in the footprints, that is, the step length becomes shorter, the step width becomes wider, and the step angle becomes smaller. When a criminal suspect is afraid of being  It was found that when the fear increases, the walking speed will increase, which is reflected in the footprint lengthening, step width narrowing, and step angle getting smaller."

    Fat Lei and Ye Qian were listening and staring at the graphics on the desktop. I took this moment to pick up the water glass and take a sip of water and said: "In the entire video, judging from the suspect's walking posture, his mental state is like this  ¡¯s: At the beginning, he was nervous because he had to sell the stolen goods. After the car was sold, he felt much more relaxed. This video of him walking on the sidewalk has become valuable for research. From this video  It is not difficult to see from the video that the suspect is very powerful in lifting and landing his feet, and you can see here."

    I took out a pen from the table and pointed at the square patchwork on the sidewalk and said: "This is the most common cement patchwork on the sidewalk. Its specifications are basically the same. I can use this to measure the suspect."  The length of each step. After my observation, I found that the lengths of his more than 100 steps were surprisingly consistent."

    "What does this mean?" Ye Qian still didn't understand.

    "Take us ordinary people as an example. Because we have not received strict training in walking, the length of our steps and arm swings will appear very random. Although there are certain rules to follow, we will never be as precise as him."

    "You mean he has been trained?"

    "Yes, and it is a long-term training. Only soldiers or special police officers who often participate in training will have gait characteristics like his. Those of us who have participated in short-term military training in college all know that during military training, no matter whether we are walking in unison,  Whether you are walking forward or walking, you need to align your legs, so no matter how long your feet are, they must be tucked in just right. Long-term training of this kind will lead to a certain pattern in a person's gait characteristics. Every time he walks,  Every step is just right. I heard the trace science teacher talk about this knowledge in college before. Many veterans will maintain this habit even in life. Why do some people have different temperaments after serving in the military?  Everything will change, and the characteristics of the steps are also one of the reasons. This is the same as the model walking the catwalk on the catwalk to look very aura."

    "No wonder the saying goes, walk upright and sit upright." Ye Qian said while nodding.

    ¡°Not only this, but you can also see from the way he walks and swings his arms that he has received long-term military training.¡±

    "In the deceased Liao Guangyong's circle of friends, only Geng Tianchou had served in the army. No wonder you said he was the suspect!" Ye Qian suddenly realized.

    "But this is just speculation. We can't use this back video to explain this to the procuratorate! Do you believe that the procuratorate can really kick us out?" I said helplessly.

    "I have an auxiliary method." Pang Lei added slowly and leisurely.  (Remember the website address: www.hlnovel.com
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