Concubine

Chapter 55 Inspection

After Feng Xiaoxue and Yang's mother left, Yang Qiuchi closed the door, found an iron rod, and pried open the lock on the aluminum alloy cabinet. Inside were three cardboard boxes, which were intact. When one of them was opened, it was Your own laptop!Installed together with the computer, there is also a miniature printer and a miniature wireless pinhole camera, but the effective distance of this wireless camera is only 200 meters.

Yang Qiuchi took the other two cardboard boxes and opened one of the big ones, which contained solar panels and batteries, which were specially provided in consideration of the fact that remote areas often have to go to the countryside for site surveys.Seeing this, Yang Qiuchi felt more at ease. At least, the laptop doesn't have to worry about running out of battery.

This computer not only has a lot of pornography and pictures that I have worked so hard to download, but also several very important forensic software, such as fingerprint and other trace comparison software, avatar restoration software, etc.

The other cardboard box contained a forensic evidence investigation box. When Yang Qiuchi saw this thing, his heart was relieved.

This forensic evidence investigation box is a treasure. Although it is small in size, it has commonly used forensic investigation equipment and reagents, including microscopic microscopes, fingerprint brushes, tapes, scalpels, blood collection needles, double concave glass slides, magnifying glasses, etc. Small-scale forensic evidence extraction equipment, fluorescent fingerprint powder, ABO blood type test reagents, standard serum, old blood stain test reagents and other forensic test reagents and powders.With these things, the general forensic examination is no problem, and, these do not require electricity.

It seems that what was crushed under the boulder was mainly a complete set of DNA equipment, including more than ten kinds of instruments such as DNA extractor, PCR expander, 310 type genetic analyzer, etc.However, even if these devices are not lost, they will not be used when they are brought back. The power provided by the solar battery is far from enough to drive these things.

Losing the DNA testing equipment, Yang Qiuchi was somewhat disappointed. If a good forensic doctor did not have this set of DNA equipment, it would be as if his arm had been cut off, but what could be done?The truck was also scrapped, otherwise, this truck alone would have brought the Ming Dynasty directly into the age of steam, and now the dream is over.

The sigh is over, it's time to work.Yang Qiuchi decided to check the short hair in the straw hat first, to determine the gender of the short hair, so that Jin Yiwei could save half of the work. Impact.

Yang Qiuchi found the straw hat from the large cabinet, carefully took out the short hair, and tested the Y chromatin and X chromatin of the nucleated cells at the root of the short hair, and found that it was a male hair. hair.This test told Yang Qiuchi that he could tell Ma Du not to arrest nuns, but only monks.

The following test is a bit troublesome, but it is very important, and it is possible to determine whether Yin De is the murderer.Regarding this issue, there are currently three main physical evidences that need to be identified, one is the contents of the deceased Bai Xiaomei's private parts, the other is the skin tissue fragments in her fingernails, and the third is the bite mark on Bai Xiaomei's left chest.

The tooth mark on Bai Xiaomei's left chest is currently considered to be the most valuable of the three evidences. Because of the loss of DNA testing equipment, it is impossible to conduct DNA tests on the contents of private parts and skin tissue fragments, and only ABO blood types can be used. Detection, while the latter, only has the meaning of exclusion, but cannot be used as evidence of the same determination.

However, tooth marks, like human fingerprints, can be used as evidence of the same identification, because the size, shape, gap, arrangement and shape of human teeth cannot be completely the same for each person. Two people have exactly the same tooth bite marks, so the bite marks can be strong evidence of the same identification.

But the trouble is that this tooth mark is on the chest of the corpse. According to the requirements of forensic evidence in modern society, the chest can be cut off and stored in formalin, but this is obviously not feasible in the Ming Dynasty.Another way is to freeze in the freezer and then use silicone rubber to make models. This is not easy, because there is no freezer, and there is no silicone rubber.Therefore, the only way is to take a picture with a digital camera and make it into a slideshow image. After extracting the suspect's teeth traces in the future, they will be compared and tested.

The most important thing now is to extract the comparison materials, the blood samples of Hu San and Yin De, and take pictures of the tooth marks.

There is no problem with Yin De's blood sample. Yesterday afternoon, when Yin De was frightened and fell to the ground in the mortuary, he was stabbed by an iron nail and injured his hand. of blood.

Yang Qiuchi came to the main room, took the digital camera from the large cabinet, and then went to the mortuary, first scraped off the congealed blood droplets that Yin De dropped on the ground and chairs with a knife, and wrapped them in white paper. Okay, and then I took pictures of the bite mark on Bai Xiaomei's left chest.

Yang Qiuchi went to the prison to extract Hu San's blood samples and tooth marks. When he returned home, he compared the tooth marks. It was obviously different from the tooth mark on Bai Xiaomei's chest. This bite mark was not done by Hu San.Since there is no trace of Yin De's teeth for reference, it is impossible to make a comparison to determine whether Yin De bit it.

Then, Yang Qiuchi took Yin De's blood coagulation powder for blood type testing, and determined that Yin De's blood type was A type, and Hu San's blood type was AB type.

However, when he detected the blood type of the skin and tissue fragments left in Bai Xiaomei's private parts under Bai Xiaomei's nails as type O, his eyebrows furrowed together. The blood types of the contents of Bai Xiaomei's private parts and the skin tissue fragments left in her nails are different from Yin De's and Hu San's!
He stood up and slowly paced around the room, maybe he detected something wrong.

Yang Qiuchi was very surprised, he couldn't figure out why this happened, Yin De was obviously the murderer, otherwise, he wouldn't be so nervous, all the signs pointed to Yin De, but why the test results were not as expected ?Did you make a mistake in your judgment?Yang Qiuchi absolutely didn't believe this. He was very confident in himself. How many times in the past, there were accidents in the tests, but none of them exceeded his expectations. What happened this time?He doesn't understand.

Perhaps, there was a problem with the inspection process just now.Yang Qiuchi repeated the test just now, and the result was exactly the same as the previous one.

Yang Qiuchi's brows were tightly locked together, he couldn't believe the result, it was completely inconsistent with his intuition, but he couldn't find the reason, but he believed that his test was correct, why did this happen? As a result, he couldn't figure it out.

Yang Qiuchi put all the microscope and other equipment and reagents into the box, then put the [-] pistol, small Tibetan knife and digital camera into the box, locked the box in the large aluminum alloy cabinet, and covered it with a piece of black cloth. Cover the cabinet.

Don't let others know about these things, otherwise it's not clear.The test results cannot be provided as evidence, because people in the Ming Dynasty could not believe in blood types and the like, and they had to use evidence they were used to to prove crimes, let alone photos, otherwise they would be burned as monsters and would be wronged.

After tidying up, Yang Qiuchi locked the door, talked to Mother Yang and Feng Xiaoxue, and went out.On the way, he kept thinking about the test results just now. It turned out that this case was not as simple as he thought.

(End of this chapter)