Chapter 54 Trace Evidence
early morning. Google search reading
Jiang Yuan woke up from bed, energetic and relaxed, as if he had not joined the task force.
In fact, there was no session for him to participate in.
As far as forensic doctors are concerned, the city bureau has veteran forensic doctors who are so experienced that they only wear masks at the scene of corpse exhumation. They also have PhD forensic doctors who are dedicated and can perform an autopsy in two weeks.
As far as criminal police are concerned, the criminal police detachment of the city bureau has many talented people who have solved major and important cases, as well as rough men who are like social butterflies.
Jiang Yuan and others from Ningtai County were not used as cattle and horses, but were taken care of by the detachment leader. Knowing that a group of people had been squatting for so many days gave them a few days to breathe.
Woo woo woo...
Wei Zhenguo called, picked up the phone and shouted: "Come down for breakfast. There's a fried dough stick shop at the door."
Jiang Yuan smiled bitterly, turned over, and got up.
After the case was solved, the accommodation conditions in the new place were greatly improved. In the past, when criminal police went on business trips, they mostly stayed in rooms for two people and in express hotels. This time, Wei Zhenguo booked single rooms for everyone, and hotels were no longer cheap. At least it shows that after the case was upgraded to the task force, they had more funds.
Downstairs, the busiest thing is the fried dough sticks shop.
In the boiling hot oil, the tumbling noodles continued to expand and expand as they stretched their arms and legs. In just a few seconds, their volume was several times larger than the original dough. The hot oil, like rising desire, uses the most drastic means to make the two pieces of dough that are glued together expand, make them bigger, change color, make them sweet, and also make them lose moisture, stickiness, and the original flavor of flour. appearance.
"Three fried dough sticks, a bowl of tofu puffs, and a bowl of soy milk. As a side dish, an egg." Jiang Yuan touched his belly and ordered a bunch of things for himself.
Wei Zhenguo drank the soy milk and clucked his tongue: "It's good to be young, but I can't even eat it anymore."
"Anyway, nothing happened." Jiang Yuan paused and asked, "By the way, can I do an autopsy?"
"It's all turned into bones." Wei Zhenguo looked at Jiang Yuan and said, "The rest of the team must still believe in their own forensic doctors. If you did it, he wouldn't recognize it."
"I can make bones now." Jiang Yuan has just acquired the Forensic Anthropology LV3 skill, so he will definitely be able to go into battle.
However, Wei Zhenguo advised: "It's better not to go. If you go, you will also help their forensic doctors. If something goes wrong, you will easily take the blame."
Mu Zhiyang next to him said: "It's not your own animal, so you don't feel bad about using it. Besides, they don't know you."
"That's right, I was seconded here before, and the guys were so cruel." Wen Ming, the detective who came with him, was also full of emotions. Although everyone is used as livestock, it is obvious that they will take more care of their own livestock.
Jiang Yuan could only lower his head and drink soy milk.
In Ningtai County, his strength is obviously much stronger than that of his colleagues, but in a provincial capital city like Changyang City, that is not necessarily the case, so there is no need to rush for an autopsy.
Several criminal policemen ate breakfast quietly, and in a daze, they tasted a hint of the peacefulness of time.
"I want to follow their on-site investigation and see the evidence." Jiang Yuan finished drinking the soy milk and had a new idea, saying, "I don't think Liu Chu has made any relevant arrangements. Can we do it?"
"You can definitely do it." Wei Zhenguo asked puzzledly: "What do you want to do?"
Jiang Yuan thought for a moment and said, "I want to see Tan Yong's car."
"His car? Do you want to use his car to find out where he might have been?" Wei Zhenguo could think of the reason immediately, but he said unpredictably: "The Changyang City Criminal Police Detachment must have checked the car thoroughly. Lost."
"That's better. If we check again, it won't affect their investigation." So far, Tan Yong still has no intention of explaining, so relying on the existing evidence to investigate is the most direct way of thinking.
LV4's crime scene investigation skills are also Jiang Yuan's strongest skills currently.
By investigating Tan Yong's car, Jiang Yuan was able to find more clues - whether the case can be solved is a matter of probability, and the more clues found, the closer it is to solving the case.
Wei Zhenguo thought for a while, nodded and said: "Then I will accompany you to find the current survey."
…
Two hours later.
Jiang Yuan, Wei Zhenguo and Mu Zhiyang stood in front of Tan Yong's Pajero.
Cao Zhouquan, the captain of the current survey squadron, answered the phone. He had a good impression of Jiang Yuan. When they met, he first gave a traditional smile, which made him look grand. Then he said half-jokingly: "You are not convinced, Tan Yong." We have wiped the car completely, there is no way it can be left untouched."
Jiang Yuan stood outside the cell in the basement, unable to resist going in. Cao Zhouquan came back and talked about this matter for two days, and this is what he is talking about now.
Wei Zhenguo laughed twice and said, "We, Xiao Jiang, have some ideas. Captain Cao, don't think too much."
"It's okay. If you want to do it again, I don't have any objection. Besides, you have left such a big basement to us. It doesn't matter if the car is done again by you." Cao Zhouquan acted and spoke in a grand manner. After speaking, he He shouted: "Du Lei!"
Then, looking back, Cao Zhouquan introduced: "Tan Yong's car was wiped by Du Lei with me before. I will wipe it with you this time."
Cao Zhouquan said he didn't mind, but he probably did mind a little bit, so he called out his capable subordinate.
Being able to wipe away the evidence of a murder case, and in a place like Changyang City, it must not be a weak hand.
Toot toot.
A balancing car rowed directly in front of Jiang Yuan.
"Du Lei." Du Qiang was wearing a police uniform on the balance car. His waist was so thin and long that he looked like he could break it with one kick.
"Xiao Jiang and the others want to clean Tan Yong's car again. You can follow them." Cao Zhouquan said directly.
Du Lei frowned and looked at Jiang Yuan and others, and said: "The inside is basically disassembled, and the wheel guard below is also dismantled..."
"I want to look for trace evidence." Jiang Yuan didn't mean to hide it, and said while making gestures: "Just because this car traveled on a bad road, it is more likely to collect debris, seeds and pollen from the scene. Or maybe there are hairs and feathers left inside. If you take it apart and look at it, you might be able to find something."
The reason why his crime scene investigation skills have reached the LV4 level is reflected in times like this.
Jiang Yuan said it quite confidently, and most importantly, what he said did make some sense.
Cao Zhouquan asked a little surprised: "Does your county bureau have a trace evidence laboratory?"
The laboratories in the criminal department tend to be simple, and many are at the level of middle school chemistry laboratories. Usually, the DNA laboratory is more expensive.
What kind of laboratory to build depends not only on the needs, but also on the relevant personnel in the unit. It can be said that many laboratories set up positions based on people. Once relevant talents are available, relevant laboratories are built, such as the drug testing laboratory in Ningtai County, both because of the demand for drug testing at that time and because of the criminal squadron. The squadron leader Lu Jianfeng has this talent.
Cao Zhouquan was shocked when he heard Jiang Yuan confidently talk about the trace evidence laboratory. This thing is really expensive.
Jiang Yuan shook his head at Cao Zhouquan: "Ningtai County does not have a trace evidence laboratory."
Cao Zhouquan, a calm and traditional handsome guy, was so angry that he said, "What can I say without you?"
"You can use the one from Changyang City. Or send it to the provincial department's trace evidence laboratory for inspection." Jiang Yuandao.
"The ones in the city are just the same. The trace evidence laboratory is complicated, expensive, has many instruments and equipment, and what the provincial department does is not very good." Cao Zhouquan shook his head and said, "So I said there is no need to dismantle it any further. I can’t take it apart, and it’s still a thankless task.”
"Whether trace physical evidence is acceptable or not depends mainly on the extraction. There is a lot of room for error in laboratory operations." At this time, Jiang Yuan had no room for humility and emphasized again: "As long as we can extract something, we can find any laboratory. Everyone has the opportunity to do it.”
"Okay." Cao Zhouquan had nothing to say and simply agreed. Anyway, he wasn't the one doing the work.