novice forensic medicine

Chapter 60 Murder Weapon
Zhou Ning walked over, Shen Guanlin looked angry when he saw the three of them clearly.

"It's you, what's wrong with the police, can they control citizens at will? What did I do, you control my freedom like this, give me an explanation?"

Zhou Ning stepped forward and tore off the isolation suit covering his chest. The three scratch marks on the right side of his neck were scabbed. All gone.

Rejoicing in Zhou Ning's heart, he raised his eyes to look at Shen Guanlin.

"There is no point in resisting now. We were very lucky to find a male DNA in the wound of the deceased. As long as it is successfully compared with your DNA, it is solid evidence."

Shen Guanlin was startled, and the struggle stopped, and Xu Dayuan put handcuffs on Shen Guanlin.

"Okay, think about it on the way. It's good for you to confess earlier. In addition, I can tell you that your son has been taken to the criminal police team."

Shen Guanlin looked at Xu Dayuan with knife-like eyes, but panic was already on his face.

"My son has nothing to do with this matter. Don't threaten me with this. I will confess that there is no problem. Let him go quickly."

Da Zhao burst out laughing, and leaned over with his fat face.

He approached very intimately, put a white coat on Shen Guanlin's hand, and blocked the silver bracelet.

"Okay, don't talk about this, how do you judge that it's our police's business? If it wasn't for the sake of not slapping the No. [-] Hospital in the face, do you think we would still talk nonsense with you here?"

Shen Guanlin didn't speak anymore, Xu Dayuan pulled his arm, and directly signaled the head nurse in the operating room to open the door, Shen Guanlin stared at the head nurse, and Da Zhao poked him.

"Don't look at people like that, don't worry about anything else, you won't be able to come back here."

The head nurse in the operating room shook her head and looked at Shen Guanlin.

"I'm not afraid of anything. Tell me, Director Shen. It's good that you're gone. You won't harm the little nurses in the operating room anymore. It's a good thing to be in jail, at least you're alive and reformed."

When Zhou Ning heard this, he looked at the head nurse in the operating room. Obviously, they all knew something about Shen Guanlin, but because of their status, they couldn't say a lot, and it was useless to say it. After all, many young people have different pursuits.

Xu Dayuan pushed Shen Guanlin.

"Let's go, go back to the team and say, you can shout if you don't feel ashamed."

The door opened, and a few people walked out just like that. Many people cast their gazes. Shen Guanlin didn't dare to talk nonsense, and walked quickly towards the outside of the Eighth Courtyard. The big winter is too eye-catching.

One to the Interpol.

Another police car also stopped, and He Chunyang jumped down from it. He couldn't hide the smile on his face. He held an evidence bag in his hand, and there was a plastic bag in it. Judging from the twisted shape, he knew it was a wrench.

Zhou Ning's eyes lit up and he hurried over.

"Found the murder weapon?"

He Chunyang grinned, very satisfied with Zhou Ning's conversation.

"Not only did I find it, but I'm an idiot for throwing the murder weapon. It's also wrapped in several layers of plastic bags, the kind that hospitals use to hold medical waste. It's really waterproof. Xiao Zhou's forensic doctor will leave it to you. You can see the blood on it."

Zhou Ning took it, and Xu Dayuan also dragged Shen Guanlin out of the car at this time, and several policemen rushed up and grabbed Shen Guanlin. He seemed surprised that the police found the murder weapon, and stared at the bag in Zhou Ning's hand.

Xu Dayuan patted Shen Guanlin on the shoulder, with a pleasant expression on his face.

"Okay, don't read it, you will know the result in a while, quickly take him to the interrogation room, and interrogate Shen Weijie separately, Xiao Zhou, forensic doctor, hurry up, the test result is very fast, right?"

Zhou Ning nodded vigorously.

"The Eighth Hospital can do it, and I will give you the result in two hours."

Hearing this sentence, Xu Dayuan waved his hand, and several policemen pushed Shen Guanlin in, as if they were shocked by what they heard, Shen Guanlin staggered a little, and his hole shoes almost fell off, but the policemen beside him directly framed him After getting up, the figures of several people disappeared at the entrance of the building on the first floor.

"How can you, is the location where the murder weapon was found far from the location where the body was found?"

"There is a distance of 100 meters to the south. It is also on the east bank, about 20 meters away from the bank. I guess he didn't see it clearly at night. He wanted to throw it towards the distance, but it was off. We found it It took three hours to find it."

Zhou Ning frowned slightly. It would not be so hasty to throw the corpse. Zhou Ning waved it with his left hand and right hand respectively, and his doubts in his heart became even more serious.

"Xiao Zhou, forensic doctor, what did you think of?"

"There are traces of fluorescent paint trampled on the right shoulder of the deceased. According to the shape, I think it is the right foot. Although it was hit with both hands, the injury is on the left side of the occipital. Combined with this stampede habit, it is an action that left-handers are better at.

According to what you said, the murder weapon was thrown on the south side of the place where the corpse was thrown, and it was still close to the shore. This is a characteristic of right-handed throwing objects, just like when we throw things forward with both hands, it is easier to throw things with the left hand. Right-handed, right-handed left-handed. "

Xu Dayuan understood, he thought for a moment and raised his head and said:
"You mean, killing people and throwing corpses are two different people? Then let's try the father and son later to see if they are left-handed or right-handed."

"Well, at least the person who threw the murder weapon is not the same person who struck the dead man's head."

Xu Dayuan kicked Da Zhao, Da Zhao was stunned.

"What did I do, why am I still beating people?"

He Chunyang couldn't hold back his smile, and when he got closer, his face became more relaxed.

"Xu Da hates you for not being up to date. As far as this trace is concerned, hurry up and learn."

Da Zhao didn't dare to speak back, Xu Dayuan had already taken He Chunyang and the others to the interrogation room, Zhou Ning coughed.

"Okay, don't be depressed, hurry up and move your things upstairs. I'm going to collect blood for testing, and search for fingerprints for comparison. There are a lot of things going on. Do you want to stay here and sigh?"

Da Zhao grinned, and went to get the things in the trunk. He found a lot of things in Shen Weijie's car before, and Zhou Ning returned to the office with the evidence bag.

Throwing the clothes aside, he quickly put on his gloves, carefully opened the evidence bag, and dumped the contents on the stainless steel table, and instantly water flowed everywhere.

Da Zhao had already followed in, put down his things and consciously put on his gloves and moved closer.

"Does the water need to be sampled?"

Zhou Ning shook his head. Finding the blood and fingerprints is the most important thing now. The water is the same as the water sampled in the reservoir, so there is no need to keep it.

"Help me dry it with paper, then go get a hair dryer, don't turn on too high a temperature, dry the plastic bag I cut open, and then look for fingerprints on it, oh yes, call Xiao Liu again, Ask him if Shen Weijie's fingerprints have been sent?"

Da Zhao had a bitter look on his face. Zhou Ning had assigned too much work to him, but he didn't dare to resist. After wiping off the water, he dialed the phone and told Xiao Liu while holding the phone, Plug in the hair dryer.

The knife in Zhou Ning's hand had already cut through the outer layer of plastic sheeting, and his excited heart beat faster. As his hands were pulled apart, the wrench was exposed, and the blood on it had dried up.

Carefully took out the wrench, Zhou Ning wiped the blood on the wrench with a wet cotton swab, took three cotton swabs at a time, then dipped in the powder and swept the front and back of the handle in the middle of the wrench, revealing a few fingerprints along with cleaning.

Electrostatic paper was used to extract fingerprints, Zhou Ning quickly entered these fingerprints into the system, and then looked at Da Zhao.

"Have you done it there?"

"Don't worry, it's already blown dry. There are tooth marks on this tape. We won't be so lucky, will we?"

"Cut it out and keep a sample, first look for fingerprints, are there any fingerprints on the tape?"

Big Zhao grinned.

"There are quite a few. Come on, I'll cut them out for you. This one is too clear."

Zhou Ning leaned over and took a look, and sure enough there were fingerprints on it.

"Xiao Liu hasn't come yet?"

As soon as the words fell, the door of the forensic office was pushed open, and Xiao Liu ran in sweating. Two fingerprint collection cards and two tubes of blood were sent to Zhou Ning with both hands.

"Forensic Doctor Xiao Zhou, here are the fingerprints and blood samples of Shen Weijie and Shen Guanlin."

Zhou Ning picked up the capture card, went to the computer to enter the number, and then started the comparison. The fingerprints on the computer kept flickering, and there was a beep for a while, the comparison stopped, and a bunch of comparison results appeared.

Compared with the settings entered before, Zhou Ning recorded in his notebook that four fingerprints of Shen Guanlin, three of Shen Weijie, two unknown fingerprints were found on the wrench, and three fingerprints of Shen Weijie were found on the outer wrapping tape.

Four Shen Weijie's fingerprints were found on the tape wrapped by the license plate.

Zhou Ning let out a long breath, and now he is waiting for the news from Xu Dayuan. If he finds out who is left-handed, then he can determine who the murderer who beat the deceased is.

"Hurry up and send the blood samples to the laboratory of the Eighth Hospital. These two tape samples and three blood samples will be sent to the Municipal Bureau's testing center for comparison with the DNA of the unknown man."

Da Zhao scratched his head.

"Wait a minute, why am I a little confused now, who is the murderer?"

(End of this chapter)