Chapter 792

Early morning.

Lei Xin, who had washed up well and slept, appeared in front of Jiang Yuan with high spirits.

Those who are captains of the criminal police brigade are old fighters who stay up late all year round. Even if they come back from the garbage mountain, they won't be flattened on the ground like ordinary garbage, unable to be pulled up.

"Team Leader Jiang, give your order. We are all ready." Lei Xin had obviously mobilized himself.

Several other criminal police officers were also mobilized by Lei Xin, their expressions relieved, calm as corpses.

"Actually, there is no need for so many people." Jiang Yuan counted the heads and added: "I originally planned to send the police officers of the cold case task force to do things. You just need to coordinate with two people..."

"There is no reason to only let you do things. It's just climbing a garbage mountain, not sleeping on the garbage mountain. Just do what you should do." Lei Xin spoke boldly.

A certain criminal police officer who was mobilized smiled and said: "If I go home to sleep, my wife is equivalent to sleeping on the garbage mountain."

"My wife is used to it." Lei Xin glanced at him indifferently and said: "Have you been sleeping in the unit these few days?"

"Yes, I thought that during these few days of going to the garbage mountain, don't go home to toss your own people!"

Liu Jinghui was on the side, shaking his head: "If you do this, you won't be able to go home for a week. Even if you take a shower every day, the smell of the garbage mountain won't be washed away. People who haven't smelled it will still think you are incredibly smelly if they get close to you after a week. But as long as you go back to sleep for one night, at most two or three days, she will get used to it."

The criminal police officer who was complaining just now stopped and said seriously: "What you said also makes sense, but..."

Liu Jinghui asked: "Do you sleep in the unit dormitory? How do you feel about the smell of smelly feet?"

"That must be unpleasant."

"Can you still sleep if it's unpleasant? Do you feel that the smell is fading day by day?"

The criminal police officer with a wife felt a burst of nausea: "I can still smell it."

"To be honest, the smell in your dormitory is really big, better than the garbage mountain, but you people who climbed out of the garbage mountain are all sleeping in the dormitory. You can't smell the stench. Think about what the reason is?" Liu Jinghui held the wisdom pearl and opened the wisdom of the opposite criminal police officer: "This is like a fisherman."

"Fisherman?"

Liu Jinghui said: "You go to the pier by the sea. When you first go, you will feel that the wind carries a fishy smell, but fishermen will tell you that fish will have a little fishy smell if left for a long time, and other things will not. Similarly, people on the grassland won't feel that the sheepskin coat that hasn't been washed for a year has any mutton smell. In a shop that eats smelly mandarin fish, walking in is a smell. They say it's fragrant. Now there are shops that eat durian. Some people cover their noses and walk away, and some people walk in with drool..."

"No wonder..." The criminal police officer with a wife seemed to have his wisdom opened, nodding in a trance: "I said sometimes when I go back to the dormitory, I will smell a sweet smell. They said it was the smell of instant noodles..."

Liu Jinghui's wisdom pearl spilled all over the floor: "That's not what I meant..."

Jiang Yuan coughed twice: "Let's talk about the case."

A group of people hurriedly sat around him.

"Special Case 802, it's also a murder case this year. There are really many cases in Qinghe this year." Jiang Yuan unfolded the files and commented casually.

Lei Xin shook his head and smiled bitterly.

"No wonder Old Huang talked about the combat power ranking, and Captain Lei didn't answer." Liu Jinghui laughed, thinking it was not a big deal.

Jiang Yuan didn't let Liu Jinghui continue to let himself go, pulled the topic back again, and said: "The victim's head was hit by a blunt instrument, leaving bamboo chips. The crime scene was in the victim's backyard. Bamboo for construction was found at the scene, but after comparison, it was not confirmed as the murder weapon. In addition, several bamboo items in the house were also checked, and they could not be identified as the murder weapon..."

Jiang Yuan roughly recounted the situation, and then said: "The deceased Wang Shouhu was 52 years old, in good health, with no signs of struggle on his body, no defensive wounds, basically can be identified as a crime by an acquaintance... I see you have also checked the related people, found nothing?"

Lei Xin shook his head helplessly: "There is no suspect who meets the conditions. The rural population in the local area is already very small, mainly elderly and middle-aged and elderly people. People like the victim are already relatively young. A few young people, like the victim's own son, mostly stay at home. There are no eyewitnesses and no motive for the crime."

Many murder cases in rural areas are simple and simple, difficult and difficult. Compared with cities, rural relationships are stable and hidden. Many grievances are accumulated over time. The final "trigger point" may be a very, very small thing, often a reason that the killer cares about very much, but far from being a reason for murder.

On the other hand, surveillance, mobile phones, and even DNA and fingerprints may not be useful in this environment. For example, in a home-invasion burglary case in a city, finding a strange fingerprint on the window can be regarded as a suspect, but in a village, it is not strange whose fingerprint is on whose window.

"Can this case use forensic botany?" Lei Xin was full of expectations. Ordinary technical means, they actually have them, but things like forensic botany are almost exclusive to Jiang Yuan. Not to mention that technicians who can use this trick are absolutely scarce, and the time spent on this technology is also long. For example, it is impossible for Lei Xin and others to queue up.

Jiang Yuan was amused and turned his head helplessly: "You should be told about forensic botany when you have time. You just have a little bamboo chips here, which has nothing to do with forensic botany. Forensic botany requires a variety of plants to look at their plant atlas. In the case of a single plant, just compare the mitochondrial DNA. Furthermore, these bamboo chips should come from tools."

Lei Xin nodded, half-understanding.

Jiang Yuan pondered that he could find Pang Jidong and others to come over to popularize science.

This thought flashed by, and Jiang Yuan continued: "Two days ago, when I was free, I speculated that the lethal tool for this case, first of all, the bamboo stick guessed in your investigation file, must be wrong."

"Wrong?" Lei Xin couldn't say it was unexpected, but it was also a bit helpless. He thought to himself, Wu Wu Fa Yi Niu is just studying paper towels all day. In terms of the lethal murder weapon, he has made two mistakes in a row.

Jiang Yuan drank water tactically and added: "This can't be blamed entirely on Wu Wu Fa Yi Niu. He is also a direction of speculation... En, in short, if a bamboo stick hits the head, the head will indeed form a contusion and laceration, but the scalp will not show full-thickness detachment, especially the skull, which will not form such comminuted fractures, and the skull damage will not be so serious. There is a saying called 'bamboo hits the hollow,' which refers to the traces of stick damage. Judging from the photos, I think the reason for the bamboo stick being the murder weapon is insufficient, and the assumption is not established."

Judging the lethal tool is also a very difficult project. In general, the LV2 level can judge blunt instruments and sharp instruments, plus some common things, which is the limit of Wu Wu Fa Yi Niu's level. He actually guessed several types of tools, and it cannot be said that he was completely wrong.

But it must be said that in terms of tool trace judgment, having LV2 level is already an elite forensic doctor. People's abilities vary in size, especially in the forensic field. Many people's wounds and causes of death are actually not typical. If you must judge a result, you haven't seen it yourself, and you haven't read similar books, and the deceased is a maverick person, then what can you do?

It is mainly that forensic reports rarely give negative results. In fact, some forensic autopsies have no results. "Unsolvable" is actually the answer.

In contrast, Jiang Yuan's tool trace identification is LV6, which is much higher, so he can easily give the result.

Just listen to Jiang Yuan continue: "Regarding the murder weapon, because the skull of the deceased Wang Shouhu has comminuted fractures and even a certain degree of depression, and bamboo chips are mixed in the bone fragments, it shows that the lethal tool should be a high-momentum blunt instrument tool."

"High momentum?" Liu Jinghui translated: "High weight, high-speed blunt instrument?"

"Yes."

Liu Jinghui couldn't help but think.

Jiang Yuan had been watching for two days, didn't wait for him, gave the answer directly, and said: "Pound hammer or hoe, considering there are bamboo chips, the murder weapon is likely a hoe."

Jiang Yuan gestured and said: "Bamboo-handled hoe, hitting the victim's head with the back of the hoe..."

Everyone present just nodded.

Jiang Yuan added: "Now let's see whose hoe it is. Let's find out if each family has changed hoes. If not, then bring back the bamboo-handled hoes of each family for inspection."

"This is good, this is good!" Lei Xin only felt enlightened, and the red rash on his body was no longer itchy.