novice forensic medicine

Chapter 8 Ex-boyfriend and current boyfriend

Zhou Ning was a little gloating on one side. In the morning, this guy said you were dizzy, which made Zhou Ning feel embarrassed. Now it's all right, forcing Lai Lai so much, it's not a fire.

But it looks like the price of this car is ridiculously high.

Xu Dayuan's knife-like gaze has already landed on Zhao Xinli.

Zhao Xinli shrunk his neck, bared his teeth and quickly raised the picture to Xu Dayuan's eyes, but the person hid away.

"Boss, don't worry, I either found it, or I can't believe it. You see, this is the Nissan GT-R 2010. The price of the bare car standard version is 148 million yuan. Add up the mess, and the landing is 200 million yuan less!

It's not a Mercedes-Benz or BMW, it's so expensive, and others don't understand it, showing off its loneliness, it's still a two-door, four-seater, crowded, with such a low chassis. "

Zhao Xinli babbled, and when Xu Da raised his hand, he was silent for a moment, knowing that he had committed an old problem.

"According to the models of these two cars, go to the overpass on the south side of the North Outer Ring Road to get monitoring from all angles. If you want to drive from south to north into the North Outer Ring Road, the overpass is the only way to go. You take a few people to go there in person. Tell the traffic police, don't tell me you need tomorrow."

"Don't worry, Boss, I'll go right away and guarantee to get the monitoring within two hours."

Zhao Xinli stood at attention, the heels of his leather shoes slapped, and then he called the criminal police to drive away in two cars.

Xu Dayuan sighed, looked at the scene, and then at the evidence bag in Zhou Ning's hand.

"Is there anything else to gain?"

"It's nothing."

Zhou Ning gripped the evidence bag tightly. Before, he thought that this thing could be submitted for inspection, but according to the time stamp in the forensic on-site study, there was no such thing at this time, and he had never heard of the above tests. The principle is also inexplicable.

Xu Dayuan raised his eyebrows, with a curious expression on his face, he stretched out his hand to grab the evidence bag, Zhou Ning struggled twice before letting go.

"You are so mysterious, you thought you were hiding something, what is this dark scum?"

Zhou Ning scratched his head, looking for vocabulary quickly in his mind, thinking about how to deal with it.

"This is the particulate matter extracted from the brake marks. I heard a chemistry senior say that tires are made of natural rubber (NR), butadiene rubber (BR) and styrene-butadiene rubber (SBR) alone or in combination. At the same time Add vulcanizing agents, accelerators, anti-aging agents, fillers and other organic or inorganic additives.

Each brand and each series, even tires that are not in the same batch or in the same wear state, will have slightly different components extracted from the brake marks.

Analysis and comparison can be done by using pyrolysis gas chromatography-mass spectrometry. I thought I would ask my instructor to see if anyone had done such an analysis. This would be an extra layer of evidence for us to identify the murderer. "

Xu Dayuan, who was carrying the evidence bag, froze, handed the evidence bag to Zhou Ning, and patted him on the shoulder with a big hand.

"Xiao Zhou's forensic doctor, it's really different to be educated. I don't understand the tests you mentioned, but I understand the meaning. That is to say, these brake marks are like fingerprints, and they are all different, right? ?”

Zhou Ning nodded.

"Don't worry, I'll find someone to ask you later, anyway, I haven't heard of it, but it doesn't matter if you don't have it, you can do it yourself!"

"what?"

Zhou Ning was dumbfounded, and Xu Dayuan waved his hand.

"Don't be so surprised. I know a Ph.D. from Liqin Island University in the city. It seems to be from the Department of Chemistry. I'll tell you about it later. It's best if he's interested. If you're done, go home quickly!"

test?

paper?

PhD?

As a scumbag, Zhou Ning dared to think about these before. He pushed his glasses, and the damn countdown jumped to 47:28. Zhou Ning missed his teeth and looked at Xu Dayuan.

Zhao Xinli went to check the monitoring, but he didn't know if he could find anything. Maybe he could investigate from the social relationship of the deceased, and he had to complete this temporary task anyway.

Hey, when I didn't get the forensic on-site study, I could still dawdle, and it was more than enough to get a second-level application if I didn't owe it. If I can't finish it, I will take back part of it, it will be uncomfortable, how can I go home.

"Xu Da, I'm not in a hurry, by the way, how is the investigation of social relations going?"

Seeing that Zhou Ning was not in a hurry to leave, he smiled instead.

"When I was involved in the first criminal case, I was too excited just like you. I wished I could live in the police force and catch the murderer quickly, but it's useless to worry about this case."

Zhou Ning was taken aback for a moment, it was obvious that Xu Dayuan had something to say, so Xu Dayuan lowered his voice.

"The autopsy report did not say that the wall of the uterus was thin. According to this, we found out from the side of the medical school that the deceased Su Manli's social relationship was very complicated. She had several boyfriends, and the ex-boyfriend and current boyfriend were also entangled."

Upon hearing this, Zhou Ning became interested.

It seems that the ex-boyfriend and current boyfriend have found their identities. If this is the case, wouldn't it be possible to speed up the speed by checking whether the two models they just discovered are under their names?

Seeing Zhou Ning's subtle expression, Xu Dayuan didn't understand something.

"Don't get excited. Listen to me. This ex-boyfriend is a maintenance worker in Su Manli's father's shop. He doesn't have any education, but he looks good, and he's got a muscular body. He's already been taken there for interrogation.

As for this current boyfriend, his identity is a bit complicated. His mother is Yang Lihua, the chairman of Lihua Group. His name is Yang Yufei after his mother's surname. It is said that someone went to the airport to pick him up, so I sent someone to follow him to the airport. "

Zhou Ning was dumbfounded.

"Maintenance worker? How could Su Manli find a maintenance worker to be her boyfriend? Isn't her father rich?"

Xu Dayuan raised his eyebrows.

"You didn't see the man's appearance, that's all right, don't ask so many questions, go home and rest quickly, I'm busy tomorrow."

Zhou Ning pursed his lips, it was meaningless to follow at the moment, after all, Xu Dayuan felt that it was not easy to arrest him directly because the current boyfriend hadn't been brought back yet, needless to say about his identity.

No nonsense, Zhou Ning left, Xu Dayuan asked a criminal policeman to drive him back.

As soon as he entered the gate of the yard, Grandpa stood in the yard with the broom head in his hand.

Seeing this posture, Zhou Ning quickly raised his hand.

"What's the matter?"

The old man walked towards Zhou Ning with the broom head in his hand.

"Don't you check what time is it? Your second uncle called you several times, but they couldn't get through. What do you think you did?"

As he spoke, the broom head was already heading towards Zhou Ning. Zhou Ning stepped aside and raised his hand to catch the broom head.

"Grandpa, I didn't go out to play. I have a case today and I have been busy. I left my mobile phone in the investigation box. I guess there is no signal."

When the old man heard this, he let go of the hand holding the broom, and Zhou Ning quickly put the head of the broom on the low wall, which was too high for the old man to reach.

"What case? Dead?"

Zhou Ning nodded.

"Well, the case hasn't been solved yet. I can't say it's discipline."

In a word, the old man didn't ask any more questions. After all, his grandfather was a village director and he was very enlightened.

"Hurry up and wash your hands and eat. You can call your second uncle again. He has gone to your house in the city."

When Zhou Ning heard this, he quickly called his second uncle, explained a few words, and then hung up. The old man had already put the dishes on the small table in the yard.

After Zhou Ning washed his hands, he leaned over, picked up his rice bowl, and started devouring the braised mackerel.

Seeing Zhou Ning's good looks, the old man helped him peel two cloves of garlic, sighed and said:
"You are a newcomer, listen more and read more, don't think that you don't know your last name after studying for two days."

"Master, I always listen to Xu Da and Master. After all, they have experience, but my master had a car accident today and his leg was broken."

The old man was taken aback for a moment, and then there was worry on his face.

"Then go see your master, pack up your things at night, and go live in a house in the city. Don't run to your hometown every day. I'm still worried about your safety when you're far away from work."

Zhou Ning was taken aback, knowing that going back to the old house every day was a previous request from his grandfather. It seemed that he felt that he was busy and was afraid that this would be too troublesome, but thinking about the case and the countdown, Zhou Ning was a little tempted.

"Sure, I'll move in at night. This case is a bit tricky, and the master is still injured. I have to be on call. Don't worry, sir, I'll come back when you finish the case."

The old man waved his hand, and the cattail fan in his hand kept waving, fanning Zhou Ning.

"I'm an old man, I can walk and move, and besides, your second uncle is here, so hurry up and eat. Your second aunt burned mackerel, and I left you a whole one."

Zhou Ning smiled and ate the Spanish mackerel on the plate. At this moment, there was the sound of parking at the gate of the courtyard, and the second uncle and aunt came in.

"Second uncle and second aunt, I made you worry!"

Zhou Ning got up quickly and was going to clean up the bowls and chopsticks. The second aunt quickly took it, and the second uncle laughed.

"I heard from Xu Dayuan that your kid did well today."

Zhou Ning scratched his head, and the old man waved his hand.

"Don't stand still, go and pack your things, and let your second uncle send you to live in the city."

Zhou Ning turned around and went into the house, in fact, he brought all kinds of books with him. The house in the city had been prepared long ago. It was the wedding room prepared by his grandfather. His parents passed away early, and these old men had prepared it for him long ago.

The second uncle is also in the County Public Security Bureau. He is in charge of logistics. He knows everyone well and has no great ability. However, he treats Zhou Ning better than his own children.

Carrying the suitcase, Zhou Ning walked out of the main house. There was no nonsense on the way. The second uncle sent him to Yuhua Community. He took the suitcase back home, took a shower and lay down on the bed.

This day's experience made him a little tired, and within 2 minutes of lying down, Zhou Ning fell asleep.

In the dream he was sitting in a windowless room with a set of seven books on the table.

The eleven huge words of "Secondary Forensic On-Site Case Analysis" above are very conspicuous. The size and thickness are daunting. No matter how much he tried to retreat and struggle, he couldn't move. Turn the page and look.

Case number one
(End of this chapter)