National Forensic Doctor

Xingyue Road.

Jiang Yuan slapped Pang Jidong awake and said, "Da Pang, we've arrived."

Pang Jidong said "Ah", wiped the corners of his mouth, with a blank look in his eyes, and obedient hands and feet, habitually slid out of the car, and asked: "Which way?"

"We're here." Jiang Yuan pointed to a single-family villa in front of him.

Pang Jidong said "Oh", like a tourist who was given directions by a tour guide, and followed the large group towards the place.

When we arrived at the place, a large group of people took photos and videos, and then someone came up to knock on the door, appeared, and explained their identity.

Pang Jidong glanced back and waited for the tour guide Jiang Yuan to start explaining.

As far as the teaching time is concerned, Pang Jidong has learned it clearly.

As expected, Jiang Yuan did not give up during the period when Pang Jidong had just woken up. He took the time, looked around, and said: "The types and quantities of pollen and spores we extracted from the samples depend on many variables. We call it 'burial'." 'Pathological factors' is a proper term that refers to all the factors that determine whether pollen can be found at a specific time and in a specific place..."

"For example, why do we have to come to the eucalyptus site for comparison? Because the terrain of the eucalyptus site is different, the spread of pollen will be different. Don't look at wind-borne pollen, which can spread very far, but any building Plant and plant barriers can prevent their spread..."

"A high wall like this can prevent most pollen from spreading."

"In this way, like the pear tree here, when it blooms, the flowers will fall on the ground, and they will spread in circles with the tree as the center. The same is true for the pollen, the farther away , the less pollen.”

"There's a problem of diffuse efficiency here..."

Jiang Yuan talked as he walked. It didn't take long for Pang Jidong to feel dizzy and unable to walk.

Jiang Yuan sighed and ended the teaching work for this period.

It has to be said that Pang Jidong's speed in absorbing knowledge has obviously slowed down. It's like a grinder. It used to be able to grind 500 grams each time. After using it for a period of time, it can only grind more than 400 grams. And there are Continued downward trend. We don't use batteries as an example because Pang Jidong's intelligence does not decline that quickly.

Jiang Yuan handed Pang Jidong a thermos cup and said with concern: "Drink some water and rest."

Hearing that he was told to rest, Pang Jidong took the thermos cup and drank a few gulps. Then he wiped his mouth and frowned: "Sugar water?"

"Sugar can increase memory and concentration. Drinking it in moderation will help you learn new things." Jiang Yuan put all his biological knowledge to use.

Of course, sugar can also make people fat and may lead to diabetes and other problems, but as far as learning is concerned, eating sugar is beneficial.

Pang Jidong also felt that he should make up for it.

After drinking the sugar water provided by Jiang Yuan, Pang Jidong blinked and felt a little more energetic.

Just a little bit, but at least it's not a pure fainting state.

At this time, the police from the front had already entered the single-family villa one after another.

The villa has three floors, plus a basement, and comes with a yard surrounded on three sides by bamboos, giving it quite good privacy. In theory, if you want to bury a body, such a yard is more convenient.

Many serial killers abroad bury their bodies in the yard, probably because this method is the most friendly to novices and can train a murderer from scratch. Domestic conditions in this regard are lacking.

Of course, many of the villas near Xingyue Road we visited today have potential.

Jiang Yuan pulled Pang Jidong, followed by Mu Zhiyang, who was familiar with the situation and went to the backyard to take a look first.

The backyard, which totals four to five hundred square meters, makes the distance between houses very wide. It is planted with a large number of roses, roses and other Rosaceae plants, several kinds of shrubs, and there are plantains and clovers on the lawn...

Jiang Yuan's eyes swept over and his attention gradually increased.

Although most of them are common plants, the varieties are relatively similar.

Using the "taphonomic factors" that Jiang Yuan told Pang Jidong, as a secondary transfer of pollen, this place can already be regarded as suspicious.

Jiang Yuan cast his gaze into the distance while calculating in his mind.

Passing through the low wall and the bamboo rafts that are not very dense, you are the house next door. The house next door seems to have different plants, but if you look closely, it is just that there are slightly fewer varieties, and more space has been made to put tables, chairs and benches. There are also things like game consoles for leisure.

Jiang Yuan took a few steps forward and got closer to the next door. He saw a small pile of fallen leaves and grass clippings piled up in the corner of the yard.

"Where's the head of the household?" Jiang Yuan called the head of the villa over and asked, "There are a lot of fallen leaves piled up in the yard next to you. I think some of them are rotten. Don't you feel the smell here?"

The head of the household was a man in his 40s. Seeing Jiang Yuan ask this, he immediately frowned and said, "I've said it several times. Every time I said it, he cleaned it up. After a while, he piled it up again. I also searched the property once, and everything was gone." It’s no use, even the good neighbors stopped talking.”

"So he has piles of fallen leaves here all year round."

"Absolutely. It's better when the weather is cold, but it smells bad in the summer, so I have to urge him to clean it up frequently." The head of the household shook his head: "I still think that the people who buy the villas have better quality, but no, now people are There’s no need to talk about any face.”

"Okay, I understand." Jiang Yuan sent the head of the household away and said to Mu Zhiyang, who was waiting next to him: "Go and have a look next door. Don't leave alone, and bring more people."

Pang Jidong, who was still recuperating, heard Jiang Yuan say this, and his eyes widened with excitement.

"Did you find anything?" Pang Jidong drank all the sugar in his brain.

Jiang Yuan said "En" and said, "Remember the cylindrical spores in the laboratory I showed you? The light brown one."

The eyebrows that Pang Jidong raised just now drooped. Did you trick the dog into coming to class?

Jiang Yuan coughed twice and said: "In short, this kind of spores usually appear on rotten fallen leaves and tree fragments. Leaves such as birch, holly, and oak trees like to grow this kind of fungus."

Jiang Yuan babbled and continued: "The birch and holly trees with the most leaves are the trees planted around his house. Of course, the focus is not on the trees. The spread range of fungal spores is relatively close, although they can be found everywhere. Rotten leaves or dead wood, but fungal spores are still very indicative because they usually require direct contact to transfer. As mentioned earlier, the dispersion efficiency is very low, so it is a more meaningful forensic marker."

"I know, I'll go over and arrest them." Pang Jidong turned around and left, his movements no less fast than Mu Zhiyang and others.

At the same time, several other criminal policemen went out from the back door here and went around to the back door of the villa next door. They didn't go in and just squatted there.

What they most wanted to see was for the people in the villa next door to run away right now.

If this is the case, everyone will be happy even if no one is caught. Because this proves that the suspect is identified.

However, such a beautiful thing did not really happen.

When Jiang Yuan passed by, he saw a man in his thirties who looked like a professional elite, holding a cigar in his mouth and smoking slowly in the empty living room.

"It's so cool for a single man without a wife to be able to smoke at home." Pang Jidong sighed involuntarily as he waited for Jiang Yuan to come over.

"Living in such a big villa alone?" Jiang Yuan looked up and saw that the two-story ceiling was more than 7 meters long. Staying there at night would only make it darker and darker. He knew this kind of house very well, otherwise When buying a house for yourself in Changyang City, you won’t buy it so small.

Pang Jidong naturally agreed: "It's somewhat evil."

At this time, the single man without a wife who was sitting on the sofa raised his head and said with disdain: "I know that the police in your mainland do not follow the rules, but you should pay attention to my Malayan nationality."

The criminal police officers present couldn't help but look at Pang Jidong and Jiang Yuan.

"Take it back." Jiang Yuan had already seen the backyard just now, and now he saw the interior and the owner himself, and he didn't hesitate at all.

Pang Jidong didn't say much more. He clenched his hands and repeated the order: "Take it back. Be polite."

The single man without a wife frowned and looked at Jiang Yuan: "You are stupid, do you have any evidence?"

Jiang Yuan waved his hands in disgust and refused to reveal any information to him.