Noon.

After washing up and taking a nap at home, Jiang Yuan immediately rushed back to the Criminal Investigation Brigade.

As soon as he entered the yard, he could feel the heavy atmosphere.

Several of the two-bar-one and two-bar-two who were at home had furrowed brows and heavy looks, whispering in low voices. When passing by, their footsteps were hurried, and their eyes were tired.

Police ranks are different from military ranks, and they are not closely related to leadership positions below the county bureau. Including the bureau chief, police ranks represent seniority.

However, for ordinary police officers, high seniority often means a main force identity.

For a serious case like a homicide, giving it to a young officer with only one bar, no one is confident.

Jiang Yuan himself is a young officer with only one bar, and he hasn't even become familiar with the police dogs in the station. The detective who speaks the most is probably the captain, Huang Qiangming.

Wu Jun hasn't come back yet, and Jiang Yuan doesn't want to feel the pressure by returning to the office, so he heads straight to the police dog squadron.

The police dog Strong, who has also been busy all day, is lying in front of his kennel, with his ears drooping lower than usual.

Li Li is busy with her back facing the kitchen. Through the kitchen window, the door, and the reflected sunlight, one can see her beautiful back, elegant movements, and stunning waist and legs.

"Jiang Yuan?" Li Li finally turned around, and her Rottweiler-like face instantly shattered the previous impression.

"Woof." The real Rottweiler Strong also barked.

"Strong, sit down." Li Li waved her hand and asked Jiang Yuan, "Did you also stay up late last night?"

Jiang Yuan said, "I slept for an hour in the morning. I don't want to eat in the canteen, so I came to make some fried rice."

Li Li smiled, and her thick eyebrows were obviously shaking, saying, "Great, make one for me too. I can't even finish making dog food. I was just thinking about cooking a chicken leg..."

The police dog Strong's eyes turned towards Li Li, and then turned back after a while.

"I'll make the fried rice." Jiang Yuan rolled up his sleeves and got started.

Seventeenth Uncle's fried rice not only saves ingredients, but also cooks quickly, giving a feeling of being the king of the night market.

Jiang Yuan quickly fried a pot of rice and also brewed a pot of tea with the teapot in the kitchen.

The tea brewing skill comes from the inheritance of Xue Ming, but as part of camping skills, the brewed tea is really not good.

"Wait, the dog food will be ready soon. There is too much meat, so it's not easy to cook." Li Li explained.

Jiang Yuan put the fried rice on the table, drank a few sips of tea, and said, "Can I pet the dog?"

"If you get bitten, it's possible. If you're not afraid, go ahead." Li Li rolled up her sleeves, half threatening Jiang Yuan.

Looking at her arms without looking at her face, Li Li's arms are actually quite beautiful, with a bit of a dancer's taste, white and shiny, slender and with some muscle lines. The scars on top are quite conspicuous, but looking closely, the injuries don't seem too serious, and they are quite tempting, making men want to be a second Strong...

Jiang Yuan used his forensic experience to judge the depth of the scars and felt relieved. He said, "Then I'll pet him a few times."

As he spoke, Jiang Yuan stood next to Strong and was eager to try.

Seeing this, Li Li had to call out, "Strong, let him pet you."

Strong's ears drooped instantly, his body stretched out, and his tail slowly wagged.

Jiang Yuan's hand immediately covered Strong's forehead, and with a little force, he closed his eyes comfortably.

As the saying goes: Rottweiler, bald dog, oily to the touch, smooth to rub, although the hair is rough, it looks shiny, and the teeth are white.

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"Trained ones are different when you pet them." Jiang Yuan praised. When this dog is fierce, it is as fast as a raging fire, but when it is gentle, it is as good as a lap dog. With its bald head nodding up and down, it occasionally sticks out its tongue, which is quite cute."Let's eat." Li Li walked out with a large bowl of dog food in her hands.

Unlike usual, today's dog food had a lot of beef, with each piece the size of a walnut, as a recognition of the police dog's work yesterday. In addition to that, there was also a good ratio of chicken and vegetables, piled high in the bowl, giving a feeling of exceeding the meal budget.

"I'll go get the fried rice." Jiang Yuan conscientiously brought out the fried rice with a per capita cost of 0.8 yuan, and poured a cup of tea for each of them, then wolfed down the yellow fried rice and drank the tea.

The nearby Rottweiler ate his own food one mouthful at a time. He neither enjoyed it nor was willing to give up, like a dog that had given a lot or had resisted, but was ultimately tamed.

Jiang Yuan looked at him pitifully and said to Li Li, "I made too much fried rice today, can I give Strong some? It only has oil, eggs, and very little seasoning..."

"If you can't finish it, give it to me. You can't give fried rice to a dog." Li Li didn't mind at all and pushed away the extra fried rice Jiang Yuan had. She ate it very deliciously.

Jiang Yuan could only pat Strong's head, finish his own food, and then leave for his office.

But Wu Jun had already arrived, rubbing his eyes and squatting in front of an electric stove, boiling something.

He was getting old, and staying up late on duty was very tiring, let alone staying up late for autopsies.

"Jiang Yuan is here." Wu Jun greeted him.

"I went to the police dog team and made some fried rice. Did you eat?" Jiang Yuan asked.

"I had a little, but I don't want to eat. My stomach doesn't feel good." Wu Jun waved his hand and said, "Don't bother making anything else. Just eat a red boiled egg."

He blew on the egg and scooped up a red egg with its shell dyed red, and put it on the table, indicating that Jiang Yuan should take it.

Jiang Yuan asked without surprise, "What's the significance of this?"

"When you see a dead body, you eat a red egg to ward off evil. Nothing special." Wu Jun also scooped up a red egg for himself, cracked it open, and stood it on the table.

When the egg cooled a bit, Jiang Yuan also cracked it open and slowly peeled it, then ate it.

The taste of the boiled egg was ordinary, but it left a pile of red eggshells.

"In the past, when there was a body at the scene, the cafeteria would always make red boiled eggs." Wu Jun said as he ate the egg.

"Why not now?"

"There are too many dead people, and the cafeteria finds it troublesome." Wu Jun said, "Now there are fewer homicides, but more non-natural deaths, like falling from a height or drinking pesticide."

Wu Jun finished the red boiled egg in three or two bites and said, "Hurry up and organize the information. We'll be busy today. If we don't find any clues, we won't be able to sleep tonight."

"Okay." Jiang Yuan's mood became heavier.

The criminal investigation team, who were under pressure to solve cases, were at their most uncomfortable at this time.

There is a saying that a homicide case has a golden 72 hours. This means that the first three days after the crime is the most important time, and also the time with the greatest chance of solving the case.

There is also considerable scientific evidence behind this.

On the one hand, the shorter the time, the more evidence and physical evidence of the crime will be preserved, making it easier to discover various clues and the relevance of the case. This includes eyewitnesses and those who know about the case. Their memory is also the clearest and most accurate within 72 hours, and then it greatly deteriorates.

On the other hand, during the first three days of the crime, the perpetrator's activity is also the highest, and their psychology is the most fragile.No matter how well-prepared a criminal is before committing a crime, their psychology will always be greatly affected in the first three days after the crime. Considering the possible consequences of the crime, the criminal may cover up, hide, or even confess, which will lead to a lot of contact with the outside world and make it the easiest time to catch them. After this period of time, the criminal's emotions and psychology gradually stabilize, and the hiding place is determined. Even if the person is identified, it will be difficult to arrest and interrogate them.

In addition, the fatigue of the police officers responsible for the case will continue to accumulate over time.

In today's environment, the pressure to solve murder cases is increasing. The police officers directly involved in the investigation mostly work overnight. After two or three days of persisting, fatigue is basically at its limit.

If the person can be caught within three days, the participating police officers can grit their teeth and continue to interrogate. But if the person cannot be caught, it will take twice the amount of time to make up for it.

For the newly committed murder case in Ningtai County, 24 hours have passed without any new clues, which is definitely an unsettling trend.

"The hair DNA match results are not very good." Wang Zhong was the first to receive the news and quietly came to the forensic office.

Jiang Yuan asked, "No match?"

"It's a match, but there's evidence that they were not present." Wang Zhong whispered, "The suspect works at KTV and has been dealt with by the public security bureau. The time of the crime happened to be when they were out of town with a client."

"How could they have left evidence in the victim's crotch if they were out of town with a client?" Jiang Yuan thought for a moment and asked the key question.

Wang Zhong chuckled and whispered, "They were with the victim in the morning and took 500 yuan. Then they drove to the provincial capital. The photos from the traffic police have also been obtained, showing the victim driving on the highway, and there was even an eyewitness..."

"So much evidence that they were not present?" Wu Jun was a little curious, "Was she delivering takeout? Why did she have an eyewitness with her?"

"Two people, 2,000 each." Wang Zhong held up two fingers.

Wu Jun clicked his tongue, "It's different in the county and the provincial capital. The value of a person has increased fourfold."

"Special services cost extra." Wang Zhong corrected.

"People's hearts are not ancient. Now I work with Little Jiang, and we always go out together, but our salaries don't increase by a penny." Wu Jun shook his head.

Wang Zhong couldn't keep up and stiffly turned his head to look at Jiang Yuan, then said, "The investigation of the unit and residence has not yielded any results. No fingerprints or matching traces have been found. The deceased lived in an old residential area with few nearby surveillance cameras, and no useful videos have been found. The investigation of relatives has not been completed, but it is estimated that it will not be effective..."

"What about now?" Jiang Yuan's focus was still on the case. This was only his second experience with a murder case, and his sense of participation was still very strong.

Wang Zhong was silent for a moment and said, "I heard that the current direction of the investigation is still based on the victim's interpersonal relationships, but it is difficult to predict the final outcome... However, if there is still no result by tonight, the whole department will probably be mobilized."

There were no so-called detectives or brilliant case-solving experts in Ningtai County Public Security Bureau. The methods used to solve the case were all conventional. If there was anything like a big killer, it would be the tactic of using a large number of people.In a big city, even if there is a newly committed murder, it may be difficult to solve it for a while. At most, a special task force can be formed, and some personnel can be borrowed. A few dozen or a few hundred people are the maximum. But in a small county town, a newly committed murder is a big deal. When necessary, it is normal to have a thousand people conducting investigations. It's not just checking a thousand people, but dispatching over a thousand workers for investigation. If necessary, they can even do DNA testing for a university student.

Jiang Yuan frowned slightly.

Doing investigations is basic labor, and he has LV4 level in crime scene investigation. If he couldn't find a more likely direction to lead to clues, he would be the strongest forensic in the county and should choose a more promising direction.

"Let's do a re-examination." Jiang Yuan proposed actively.

Re-examination is something that forensic personnel should do, and it is also a basic requirement for forensic to go back to the scene for investigation.

Jiang Yuan recalled the operations of the forensic team before and already had a plan in mind.

The forensic personnel in the same criminal science team, whether in terms of technology or dedication, are all at an ordinary level. From Jiang Yuan's LV4 level of crime scene investigation, he can always find omissions.

Although he didn't know if there were clues in these places, Jiang Yuan's sense of responsibility involuntarily expanded when the case was stuck in a stalemate.