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At 12 o'clock in the middle of the night, the project meeting was held as scheduled, and Ye Qian attended the meeting on behalf of the Criminal Police Team.
"Let me talk about the autopsy first." Brother Ming got straight to the point. "According to the bone age calculation, the deceased was about 72 years old. Except for blunt force injuries on the head and sharp force injuries on the chest, there were no other traumas. The fly eggs were measured. The conclusion is that the murderer committed the crime around 1 a.m. on September 7. That¡¯s all from my side, what does the criminal police team say?¡±
Ye Qian took out Lu San¡¯s transcript from her briefcase and handed it to Brother Ming.
¡°We don¡¯t have the physical characteristics of the suspect yet, and there has been no substantial progress in the interview.¡±
Brother Ming glanced at it quickly, and then handed the transcript to Ye Qian: "Okay, Xiaolong will tell you."
I nodded and said, "I extracted two types of traces at the scene, fingerprints and shoe prints.
¡°The shoe prints are too messy and I can¡¯t tell which shoe print is suspected of being involved in the case. I haven¡¯t dealt with it yet.
"The fingerprints attached to the pried-off iron box can be identified as suspected fingerprints. Many of the fingerprints I extracted are all aging fingerprints. Although the lines of fingerprints will not change during a person's life, as age increases, The elasticity of the fingers will gradually weaken, the fingerprint lines will become shallower and rougher, the discontinuities will increase, the small furrows will become wider, the peeling will increase, the wrinkles will increase, the knuckle folds will extend to both sides, and the branches will increase. These lines in the aging stage The characteristics are reflected in the suspect¡¯s fingerprints, and it can be inferred that the murderer is over 60 years old.¡±
Seeing that I had closed the notebook, Brother Ming promptly interjected: "Lu San's transcript mentioned that there was cash stored in the merit box of the mountain temple. Have you and Ye Qian verified this?"
??Brother Ming¡¯s meaning is very simple. If the suspect embezzles money and kills people, then she will not touch the money in the merit box.
"It has been verified that the lock core on the merit box is intact and there are no signs of prying. Judging from the layer of dust on the lock, it seems that no one has touched it for a long time."
Brother Ming said "Oh" and didn't ask any more questions. He then turned his attention to Lao Xian.
"What are the physical and chemical tests like?"
Lao Xian drew out two reports: "The DNA of the deceased was detected in the blood stains on the indoor door latch, so the blunt instrument used by the murderer to hit the deceased's head was the door latch.
"The sharp injury was caused by a peach tree branch. I extracted exfoliated cells from it. After testing, the genotype is xx. The murderer is a female. I only have so many here."
"Jiao Lei, is there any progress in video surveillance?"
Fat Lei turned on the projector listlessly and dragged a video into the player: "This is the video surveillance obtained by the brothers from the criminal police team at the canteen at the foot of the mountain."
"Teacher Jiao Lei, why is it so dark? Please click play." Ye Qian stretched her neck.
"The canteen uses the most old-fashioned surveillance system. It's blinding at night and you can't see anything at all."
"this¡¡"
"But don't worry, Ye Qian, the suspect will be out soon."
"Really?" Ye Qian cheered up and stared at the projector with bright eyes.
Thirty seconds later, a blurry light spot appeared in the video surveillance. About a minute later, the light spot disappeared, and Pang Lei clicked the pause button at this time.
"No?" Ye Qian looked at Pang Lei doubtfully.
"Based on the time of the murderer's crime, only one person went up the mountain that night. The light spot on the video should be the flashlight in the suspect's hand."
"Can you figure out the suspect's appearance?"
Fat Lei smiled bitterly: "This is already a processed video. Don't say I'm incompetent. Even top video experts can't do anything."
¡°Brother Lei, can you play the video again?¡±
"Xiaolong, don't you know? What can you find about such a dark video?"
¡°Brother Lei, play it again.¡± I repeated what I just said with a serious expression.
Fat Lei looked at me with a serious look on his face and dragged the video playback bar to the starting position. The video, which lasted more than a minute, finished playing quickly.
¡°Play it again.
¡°Play it again.
¡°Put it away again.
¡°Put it away again.
"Let it go again"
¡¡¡¡
¡°More than a dozen times in a row, other people have become extremely nervous due to my emotions.
"Okay, you can stop."
Seeing me heaving a sigh of relief, Fat Lei quickly asked: "Xiaolong, what kind of medicine are you selling in this gourd?"
"We have a clue!"
"What? Whenreal? "
Everyone is a little bit incredible.
"Brother Ming, I need to do a detective experiment."
"Okay, what do we need to do?"
¡°Just a tape measure will do.¡±
Early the next morning, Pang Lei followed my instructions and drove to the canteen department where the video was retrieved. There are only two tasks in the detection experiment. One is to measure the distance of the monitored road section, and the other is to calculate the number of times the light spot shakes in the video.
We all know that walking is a conscious behavior under the control of the brain. The entire walking process must be completed with the coordination of the limbs. The number of times the light spot shakes in the video is actually the number of times the suspect swings his arms with each step, that is, the number of steps.
The coverage area of ??video surveillance is a fixed value, so by counting, we can determine how many steps the murderer took at this fixed distance, using the formula:
The suspect¡¯s step length = fixed distance/number of steps
According to this method, I quickly came to the conclusion: "24.5 centimeters."
This value was in line with my expectations, and then I took out a photo: "Look at this!"
"What is this?" Ye Qian asked, looking at the triangular floating dust marks on the photo.
"Shoe prints!"
"Shoe prints? Could it be high heels?"
"No, this kind of shoes is not sold on the market. They can only be made by hand."
"Three-inch golden lotus?" Brother Ming was the first to react.
"Three-inch golden lotus" is related to the bad habit of foot binding among ancient Chinese women. Foot binding began in the Five Dynasties and was widely spread in the Song Dynasty. At that time, people generally regarded small feet as the standard of beauty, and women regarded foot binding as a virtue. There are even historical records that the small feet are a woman¡¯s ¡°third sexual organ¡± besides the vagina and breasts.
People call bound feet "lotus", and feet of different sizes are called "lotus" of different grades. Feet larger than four inches are called "iron lotus", four-inch feet are called "anemone", and three-inch feet are called "lotus". Golden Lotus". The "three-inch golden lotus" was considered the most beautiful feet of women at that time. In "Jin Ping Mei", there is a saying that "a crooked stocking is like a three-inch golden lotus".
At that time, Sun Yat-sen also issued an order saying:
"If a general wants to strengthen the country's strength, he must first develop the physical strength of the people. As for the matter of foot binding, limbs are mutilated and blood vessels are blocked. Although the harm is done to one person, the disease will spread to his descendants. How can it be falsely accused based on physiological evidence? Because of foot binding, he is unable to move, lives in seclusion, has no education, and is ignorant of world affairs. How can he make a living independently and serve the world? The above two are particularly great. If they cause harm, it will be hard to count. Those who are benevolent and lofty ideals With the establishment of the Tianzu Association, those who are enlightened have been eliminated, while those who are stubborn are still clinging to their prejudices. At this time when we are eradicating the old and establishing the new, these bad customs must be eradicated in advance to strengthen the foundation of the country. For this reason, the ministry is ordered to act quickly All provinces shall issue bans as a whole, and those who violate the ban for any reason shall be given appropriate punishment to their family members.¡±
Under strong pressure, women at that time gradually abandoned this bad habit. Today, foot binding has long become an unmentionable history.
Although the bad habit has been completely abolished, "Footprintology" still includes this kind of special footprints in the study.
Based on the calculation that 1 inch is equal to 3.33 centimeters, the longest "three-inch golden lotus" is only 10 centimeters. This length is at most comparable to the length of a two-year-old child's feet.
We all know that the power for people to walk comes from the force of the ground. Once a person's feet become smaller, the force provided by the ground will also become smaller, which will cause the steps to be unable to move, causing the step length to be significantly smaller than the normal value. .
Seeing that everyone was still confused, I explained: "When I was observing the video yesterday, I found that the frequency of the light spots shaking was quite high, so I suddenly thought of the dozens of special marks in the front hall of the mountain temple.
"The mark is triangular in shape. According to the footprint map, it is most likely that it is a foot-binding shoe mark, so I measured the value. The total length of the sole is 14 centimeters. Without the allowance, her foot length should be about 12 centimeters, which is half of a normal woman's. .Based on the average stride length of a normal adult woman being 52 centimeters, the murderer can barely reach half of it. Based on these two values, it can basically be determined that the suspect has had his feet bound."
Ye Qian snapped her fingers: "The rest is easy. Teacher Guoxian extracted the suspect's DNA. We only need to screen out all the people with foot binding in nearby villages and compare the DNA one by one to solve the case." ( Remember the website address: www.hlnovel.com - Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report
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