Police Detective

　　 The problem is that because of the confidentiality regulations, the leaders of the office last night only said that it was a secondment by the special case team, and did not say anything else, so everyone did not understand what the case was and how the secondment was.

　　 But Wang Liang knows! He had just gone through the scene a few days ago, and there has been no notice of solving the case in the past two days. If there is any case that needs to be set up, it must be this. Thinking of the situation at the scene, Wang Liang didn't want to go, so he made a bet with Li Han, who had a good relationship.

　　 Facts have proved that asymmetry of information is unfair, so Li Han naturally lost. In addition, Li Han really wanted to come to the task force, so it was Li Han.

　　 Well, Wang Liang's level is high enough.

　　 Too lazy to tear down Wang Liang, Bai Song and Li Han chatted about other things.

　　 Li Han is a person with deep patriotism, which is mainly reflected in his obsession with the history of the Qin Dynasty to the Five Dynasties and Ten Kingdoms. Bai Song happened to have a little research on the history of the Song Dynasty. Apart from chatting about this case, he also talked about history.

　　 History is something that no one can underestimate. For example, the Collected Records of Washing Injustices written by Song Ci during the Southern Song Dynasty. Although it is a long time old and some places are not so scientific, it is still worth learning. The ancient language and literature that Bai Song chose during his sophomore year was the book he chose.

Among them, the "Rehabilitation Collection" Volume 4-25 has a record: "If the skin under the item is convex, the two shoulders are shrugged, and the skin is pruned off during the lifetime; the skin and flesh is not convex, and the two shoulders are not shrugged and tied to death. Later, it will fall.” For this case, it can be used to prove that the dissection of the body in this case was carried out after the death of the victim.

　　 After running outside for a day, Li Han and Bai Song found seven or eight shops with grinders, took samples of more than 20 grinders, and had a casual dinner. When they returned to the unit, it was already 7 o'clock in the evening. Li Han didn't live in the unit and drove home by himself, while Bai Song lived directly in the criminal police team.

　　 I took more than 20 samples a day, and Bai Song was not optimistic, because he gradually felt that the composition of the 20 samples taken today would not be any different.

　　 Back to the dormitory, Bai Song was surprised that Sun Jie was in the same dormitory with him, and did not leave.

　　 "Brother Jie? Why didn't you leave?" Bai Song glanced at Sun Jie who was sorting out a lot of materials.

　　 It doesn't matter if I look at it, Bai Song almost didn't stare out his eyes.

　　Sun Jie is sorting out a whole set of reports. The report here includes a large number of real-life photos in color. And these photos...

　　 Bai Song just glanced at it, and he couldn't hold it anymore. The little thing he had just eaten hit his throat in an instant, Bai Song pinched himself forcibly, pressed it down, and then turned his head and stopped looking at Sun Jie.

　　 Sun Jie couldn't help but smile. He looked at Bai Song who was originally excited and looked at a few pictures. He couldn't help but teased: "What are you afraid of? You haven't seen the scene before."

　　 "Don't, Brother Sun, Brother Jie! I admire you for your greatness, I am too shallow, I am willing to bow down."

　　 This is not the time to be able to do it, Bai Song understood all of a sudden, why Wang Liang didn't want to come.

"It's okay. If you can't stand it, just vomit it out. This kind of thing, vomiting a few times, I got used to it. When I was in school, the first time I saw the general teacher, the classmates in our class couldn't help it. Now, it's normal. Now." Sun Jie said indifferently, sorting out the case files as he said.

　　 "It's okay, I'm much better." Bai Song took out his water glass from the backpack on the bed. He made a little tea in the morning before he had time to drink it. The temperature was almost gone by now, so he drank 500ml of tea in one fell swoop.

　　 The bitter tea has eliminated most of the nausea in his throat. Bai Song understands that there are certain things in this world that you will face once you choose.

　　 Thinking of this, Bai Song looked at the photos again. Although it was still extremely disgusting, it was much better.

　　" Okay, come over and help me clean up the file when I feel better. I am also a single dog. I won't go home tonight. After finishing all these things, I should report to the leader tomorrow." Sun Jie said.

　　 Bai Song said hello, and helped Sun Jie. In fact, there is not much work, that is, just binding. The two worked together and it took ten minutes to get it done. During this period, Bai Song, who had seen various photos several times, gradually began to get used to it.

　　 "Brother Jie, I think this incision is really smooth?" Bai Song asked with his nausea endured.

"Well, you are right. Several comrades in the city and I have also seen this problem. We speculate that the cutting ability of this cutting machine is very strong, and the damage of the connection is relatively small. For this, we speculate This should be done by a skilled worker." Sun Jie said.

　　 "You mean, the murderer was the one who installed doors and windows?" Bai Song said.

"I don't rule out this possibility." Sun Jie stretched his waist after finishing it. "I have been busy for a day and I am exhausted. I have to take a bath and sleep later. Do you see this roll? If you look at it, just hold it. , UU reading www.uukanshu.com will lock me up if I don’t read it. “Because everyone is a special case team, Sun Jie doesn’t shy away from it.

　　 "Look, you are busy with Brother Sun, I will watch in this room, I can't lose things."

　　 After speaking, Bai Song opened the case file.

　　 This is not the entire case file, but just a case file made by the forensic doctor and the criminal police on the scene. Bai Song tried his best to avoid the photos and read some reports instead.

　　The composition of the gravel extracted on site is very complicated because it has been mixed with river sand and silt. The laboratory of Tianhua University has used a variety of experimental methods to prove that the amount of various elements contained therein does not match the river sand.

　　 There are only inferences, not conclusions.

　　 It is inferred that it contains silicon carbide.

　　 Silicon carbide also exists in nature, that is, we often say that it can be used as fake moissanite with diamonds, but industrial low-purity silicon carbide is often prepared in abrasives.

According to this clue, silicon carbide is also called emery in industry. In the definition of grinding wheel, there is a special model, called GC (green silicon carbide abrasive) or C (black silicon carbide abrasive), but there are still two Questions. The first is that these two abrasives are the most commonly used abrasives. The second is that the composition of several corundum abrasives has been found in the experimental report, which caused everyone a headache.

　　 Bai Song looked at the scroll for a long time, and Sun Jie couldn't stand it anymore, "Let’s talk about it tomorrow, I am not younger than you, I can’t stand it anymore, give me the scroll, I have to lock it up."

Sun Jie was as meticulous as ever. He wouldn’t be able to sleep without putting these things in the safe. Bai Song naturally understood, so he handed over everything, washed himself, prepared all the bedding, and lay down. I'm ready to rest.