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Bones in the Wilderness ¡¤ Twenty Four

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    Ye Qian opened the notebook, and rows of rough calligraphy appeared on the paper. If you hadn't seen it with your own eyes, it would be hard to imagine that this handwriting was written by a girl with a loli face.

    "This CD of Teresa Teng's songs is actually a genuine CD."

    "It seems that the deceased's pursuit of music is as good as mine." I added casually.

    Ye Qian rolled her eyes and stared at me, then continued: "Although the barcode on the disc is missing, we found the source audio and video company through the shipping channel. According to their introduction, this disc is Teresa Teng's limited edition.  Edition collection, which contains all her classic tracks, and also has an exclusive poster of Teresa Teng. It was sold out as soon as it was released, and this disc is quite expensive, selling for 65 yuan per disc, which is much higher than the average genuine edition.  The disc is more than twice as expensive.¡±

    ¡°When is the sale date of the disc?¡±

    "May 8th of the year before last."

    "Is the time so precise?" I asked curiously.

    "Because Teresa Teng passed away on May 8, 1995, this CD is also to commemorate her, so we chose to release it on May 8, and it was sold out after only one week." Ye Qian explained  road.

    "The deceased was wearing a long-sleeved shirt and suit pants before his death. According to the temperature in Yunxi City, the average temperature in May is around 20 degrees. The characteristics of the clothing can explain the past. If the deceased had purchased the CD immediately,  , the accurate time of death should be between May 8th and May 15th of the year before last."

    "It's not so sure. If someone bought this disc and gave it to the deceased, then your inference doesn't explain anything." Brother Ming can always plug any of my loopholes as soon as possible.

    "Guoxian, have you found any relevant missing persons alarm records?" Brother Ming asked.

    "No."

    "That is to say, it has been so long since the deceased was killed and no one reported him as a missing person? Could it be that the deceased was a single person?" I said.

    "It would be easier if the deceased was a bachelor. That way the investigation would be more targeted and I'm afraid something might happen." Pang Lei said with some trepidation as he had investigated too many weird murder scenes over the years.

    "Ye Qian, do you have anything to add?" Brother Ming turned around and asked.

    "No, Director Leng."

    "Well, let me first talk about the situation here. It's very simple and can be summarized in one sentence. The deceased was a male, between forty-five and fifty years old, the exact age was over forty-eight years old; he was one meter tall.  Sixty-five, the fatal injury was a puncture wound to the skull, and the murder weapon was suspected to be a stabbing. Guoxian, let me focus on your situation below." Brother Ming stated his conclusion concisely, and looked up at the thick thickness in front of Lao Xian.  A stack of reports.

    Lao Xian spread out all the reports, glanced at them and replied: "The deceased's genotype is xy, male. By testing the bones of the deceased, it can be inferred that the deceased is an adult, but the specific age is unknown. Instrumental testing can only give a relatively rigid conclusion.  Numerical values ??cannot be used to draw precise conclusions. By analyzing soil microorganisms and the degree of erosion of the bones of the deceased, it can be concluded that the time of death of the deceased is approximately two years."

    Brother Ming heard this and analyzed:

    "This can also be seen from the skeleton of the deceased, plus the clothes of the deceased, it should be during the season with relatively high temperatures two years ago. Judging from the climate conditions here, I personally think it was from May to October.  Somewhere between months.¡±

    His reasoning has always been known for its accuracy and meticulousness. I have just come to a rough conclusion based on Ye Qian's feedback. However, Brother Ming remained silent until Lao Xian's test results came out.

    The previous inferences were only based on personal experience and were not supported by scientific evidence. When he learned that Lao Xian had no accurate conclusion, Brother Ming gave a rough time period based on his usual accumulation.  This cannot be said to mean that Brother Ming's city is very deep, but it happens to show his serious attitude towards scientific investigation.

    Lao Xian has closed the three reports in front of him, but there is still one report spread out on the table.

    "What kind of report is this?" Brother Ming opened his mouth and asked.

    "Analysis report of the deceased's hair."

    "Oh? Tell me."

    "The corrosion resistance of hair is second only to that of bones. During its decay process, it first loses its luster, gradually weakens in strength, becomes less elastic, and finally becomes brittle and breaks. It usually disappears after about fifty years. The strength of the hair will increase as the time it is buried in the ground increases.  becomes weaker. The tensile strength of normal hair is between 48 grams and 90 grams; when buried in the soilAfter two years, the tensile strength will weaken to 25 to 60 grams; after ten years, the strength will be even smaller, only 19 to 27 grams; after forty years, it will drop to  Between two and three grams.  This also shows that the time of death of the deceased was approximately two years.  "

    "Well, it seems that multiple subject areas are pointing to the same result, which shows that the conclusion we reached is not biased." Ming Ge nodded and said.

    "I made a significant discovery on the deceased's hair."

    None of us expected that Lao Xian had something up his sleeve, and obviously Brother Ming didn't either, because according to his usual practice, the next step was a summary statement. When we heard what Lao Xian said, we all turned our attention to him.  body.

    "After my testing, the copper content in the deceased's hair was very high. At first, I thought that he might have used low-quality porcelain tea cups for a long time because of his financial difficulties. Because low-quality porcelain tea cups would add excessive amounts of oxidants during the firing process.  It is most likely to cause copper poisoning in drinkers.¡±

    ¡°There are too many low-quality tea cups used. This doesn¡¯t seem to help the case.¡± I whispered in my heart.

    "Originally, I thought it was over, but unexpectedly, I found a large amount of phenylenediamine in the hair of the deceased. It is a strong carcinogen and its chemical composition is very stable, so it was not found on the hair of the deceased.  It didn¡¯t dissipate.¡±

    "Teacher Guoxian, what does this mean?" Ye Qian couldn't help but speak.

    Lao Xian adjusted his glasses frame: "Phenylenediamine is a chemical substance widely found in hair dyes. Due to the presence of benzene rings and amino groups in its molecular structure, its composition is stable. Its main use in hair dyes is to grow hair.  Time ensures that the hair does not fade.¡±

    "Generally, hair dyes are divided into three categories: temporary, semi-permanent and permanent. The phenylenediamine content in temporary hair dyes is the rarest, and the permanent ones have the most. Through my quantitative analysis of phenylenediamine in the hair of the deceased, he found  The hair dye used on the hair should be permanent.¡±

    "Permanent hair dyes are divided into three types."

    ¡°The first type is called plant permanence. It mainly uses substances extracted from the flowers, stems and leaves of plants for dyeing. It is quite expensive. It is estimated that only those first-line celebrities can afford it.¡±

    "The second type is called oxidation permanent. It is a mainstream product on the market. This hair dye will penetrate into the cortex of the hair and undergo an oxidation reaction, causing the dye molecules to be sealed in the hair fibers, and finally the hair will change color."

    "The third type is called metal permanent. It is also a relatively cheap one. It is mainly dyed with metal raw materials. The dye is deposited directly on the surface of the hair, causing the hair to change color. This hair dye is like brushing it on the hair.  A coat of metallic paint.¡±

    Lao Xian picked up the water cup in front of him, took a sip of tea, and moistened his throat: "I used to think that the deceased had copper poisoning, but later when I examined the bones of the deceased, I found that there was no such feature, so this view was rejected by me.  Excluded. Combining some of the things I have learned so far, the copper element in the deceased's hair exceeded the standard in large quantities, which was most likely caused by his hair dyeing. And he should have used a metal permanent hair dye. As a metal, copper generally exhibits physical colors  It's yellow or brownish-red. Later I looked up information on this and found that if metallic hair dyes contain copper, they are often golden dyes."

    "Then why is the hair we found at the scene normal black?" I was a little confused.

    "This is due to the decomposition of soil microorganisms, which causes the hair dye attached to the surface of the hair to break away from the surface of the hair fiber, so what we see is black. But because of the long-term attachment of copper, a large amount of copper will be locked in the hair.  That¡¯s why I came to the above conclusion, and judging from the amount of hair found, there was not much hair on the deceased¡¯s head. He might still have ¡®thin hair¡¯ or ¡®baldness¡¯.¡±

    "Forty-eight years old, male, driving a taxi or a black car, 1.65 meters tall, with blond hair, maybe bald. This investigation is much easier." Ye Qian made a concluding speech.

    "We have just analyzed that the specific time of death of the deceased was almost two years ago. At that time, our city had completely banned black cars from carrying passengers, and there were almost no black cars on the road. Therefore, we can confirm that the deceased was a taxi driver.  Let's check in this direction first, and if there are no results, we will change our thinking." Brother Ming added.  (Remember the website address: www.hlnovel.com
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