The direction of criminal investigation is an extremely important power.
Even if cadres from the provincial department arrive in Longli County, in theory, they only have the right to make suggestions and cannot just take over the criminal police team. Unless the county agrees.
Many times, for many reasons, the direction of criminal investigation cannot be decided arbitrarily.
The first person responsible for criminal cases in Longli County is always Hou Lejia, the captain of the brigade. He has many situations to consider, and after making a decision, he is entirely responsible.
Jiang Yuan expressed all his opinions and went to the door to eat snail noodles.
Compared with instant noodles, one good thing about snail noodles is that it can be kept longer and soaked for a while, and the rice noodles are still in an acceptable state. It even tastes better because it has been soaked for a while.
Jiang Yuan ate with a slurp. If there wasn't a layer of oil floating on top of the noodles, which slightly burned his mouth, he would have finished it in one breath.
Hou Xiaoyong also came out. Seeing Jiang Yuan eating so deliciously, he felt an inexplicable sense of accomplishment and said, "The snail noodles I cooked are still good."
Jiang Yuan thought about it for a moment, tasted it, nodded, and said: "It's pretty good, professional level."
Hou Xiaoyong's snail powder skill is at the level of LV1, which is much better than his spot survey.
Hou Xiaoyong laughed twice, squatted next to Jiang Yuan and introduced: "It is easy to cook snail noodles, just control the order, like this oil, it will be boring if you cook it for a long time, and the peanuts should be put in later, otherwise
It won’t be crisp anymore…”
Jiang Yuan nodded, it was a serious bowl of snail noodles.
"Brother Jiang, can we clean up the scene later?" Hou Xiaoyong asked closely.
Jiang Yuan glanced at him and said, "I can just wipe it myself."
The purpose of wiping the scene again was to verify Jiang Yuan's own thoughts. On the other hand, it was to see if there were any other clues.
Similar to many scenes he had visited before, the probability of finding any clues in this kind of scene that had been dealt with once was very low. If he found it, it would usually be just clues.
What's more, the scene was broken into by onlookers in the early stages of the incident, so the value of the evidence was greatly reduced.
In view of this, Jiang Yuan no longer expects help from others.
Moreover, even if he asked for help, Jiang Yuan would rather ask Heizi for help than Hou Xiaoyong.
Hou Xiaoyong's face was full of disappointment, and he hesitated at the door, unwilling to go in. He turned around and whispered: "Brother Jiang, I actually want to learn something from you and steal from you..."
"You can't learn anything from me. You think too much." Jiang Yuan interrupted Hou Xiaoyong cruelly.
"You don't need to teach me, I'll just stand in front of you and take a look."
"It's okay to look, but it's not necessary." Jiang Yuan breathed a sigh of relief: "Doing a spot survey is a meticulous job, and there are no martial arts secrets. Moreover, I guess it will be difficult to find any more evidence at today's scene."
Hou Xiaoyong looked disappointed.
He really wanted to find a kind of martial arts secret book. A martial arts secret book for on-site investigation.
However, from Jiang Yuan's point of view, players with LV0.6 have no chance to practice, so there is no need to force learning.
Even if Jiang Yuan doesn't cheat, after a few months of practice, he can be close to the level of professional players, which starts at LV0.9 and ends at LV0.6, which is definitely a reverse talent.
The requirements for crime scene investigation are actually not high. Being discerning, careful and patient are the basic requirements. It would be better if you have some ideas and some association skills.
But Hou Xiaoyong looked like he didn't care at all.
It doesn't matter. He is still a good boy of his mother and a good baby of society. He is just not suitable for crime scene investigation.
It may be more reliable for Hou Xiaoyong to recognize the reality early and change positions.
"By the way, forensic doctor Ye is here. Who is doing the autopsy?" Jiang Yuan asked again after finishing the snail noodles.
"Forensic doctor Wang Lan." Hou Xiaoyong said.
Jiang Yuan secretly said that it was true.
Wang Lan has been to at least half of the murder cases that occurred in Qinghe City, but Wang Lan has been there almost every time that there have been murder cases in Longli County.
There may be clues on the corpse, but since Wang Lan's forensic doctor found nothing, Jiang Yuan put the autopsy in second place.
After patting his belly and peeing again, Jiang Yuan came back to change clothes and conduct an on-site inspection, while driving most of the people out.
Wang Zhong helped him, diligently dipping the brush, applying powder, and taking photos...
Chacha.
Click click click.
Jiang Yuan was conducting on-site inspections in a calm mood, and his movements gradually became soothing and rhythmic.
Whether you can do it or not is one thing, elegance is all that matters.
Hou Xiaoyong held the door open and looked at it for a while, but didn't understand. He wanted to wait for Jiang Yuan to look over, but lost his temper and left.
evening.
After the on-site investigation was completed, some human hair was found, and more were traces of rummaging at the site.
From this aspect alone, the elements of burglary are strengthened.
After all, if it is done by an acquaintance such as the husband, there is no need to steal one's own property. Moreover, there is no need to search so many places, which does not prolong the time of committing the crime and makes it easier to be discovered.
However, we cannot rule out the possibility that an acquaintance deliberately confuses the situation. Or, the alien hired by the husband may want to earn extra income, or he may be rummaging around.
After properly delivering the evidence to the evidence room in Longli County, Jiang Yuan went to their imaging office.
There are many ways to find burglars, but surveillance is still the most reliable.
In fact, mobile phone positioning can also be used. Nowadays, it is very convenient to locate through base stations, but this method can usually only prove that someone is in a certain place. It is good for investigation, but not enough for evidence.
For ordinary burglaries, the police are too lazy to use this method. If you don't tell the technical detective, you have to look for evidence again later. It is equivalent to licking both ends of the bitter gourd, using the wrong place and selecting the wrong function.
Of course, the more traditional method of looking for fingerprints, or looking for hair, sweat and other DNA evidence is also a better solution. It is a test of the ability of the current investigation. On the other hand, a thief who has been caught once in this way will go from prison to university.
After you get out of it, you will usually grow.
By wearing gloves, overalls, etc., you can often perfectly avoid such evidence. However, the possibility of leaving sweat still exists. The thicker you wear, the greater the possibility of sweating when committing a crime. It depends on the current situation.
I wonder if I can find it.
In a normal criminal investigation environment, the police system's investment in burglaries is average. In fact, it prefers to do things one by one, just sit back and wait.
Otherwise, there are more cases where people are looking for stolen goods.
In contrast, searching for suspects through surveillance is a very labor-saving forward crime-solving model.
Hou Lejia looked a little excited. When he saw Jiang Yuan, he whispered: "There have been a series of burglaries recently. Moreover, in most cases, bicycles and electric vehicles were stolen. It should be the same person.
.”
"After stealing bicycles and electric scooters, use them to carry things?"
"Yes, when he steals, he usually finds the key, installs a few more large items such as computers, and brings a bicycle or electric car with him. If he can't find the key, he should also unlock the door."
Generally, recidivists have almost fixed criminal patterns.
This is just like ordinary people who go to work for a long time. What time they get up in the morning, which route they take, and which car they take, all become fixed patterns in the end.
Working for a criminal is equivalent to going to work. Even if he wants to avoid being punished, he cannot always think about changing.
I don’t have that strong ability to innovate either.
If he could come up with new ideas at every turn, he would have become a capitalist long ago, and there would be no time for burglary.
A successful criminal will often strengthen his criminal pattern, because after repeated trials, he will definitely feel that his criminal pattern is advanced.
Similarly, you can also refer to Japanese short movies. In the same series, the action rhythm is not changed, but the heroine is changed.
"Is there any surveillance video of the suspect?" Jiang Yuan asked directly.
If you commit multiple crimes, the probability of completely evading surveillance is very low.
Moreover, criminals who commit burglaries do not need to be so vigilant. It’s not like they always end up dead.
Hou Lejia nodded, asked his subordinates to show it, and said: "I'm still watching other videos, there should be more later."
As he spoke, a black shadow appeared on the screen.
The picture is a bit dirty, you can see the movements but not the faces.
"Can you confirm the identity of the suspect?" Jiang Yuan asked again.
"Still thinking of a way." Hou Lejia is relatively confident.
As long as the surveillance camera captures it, there are still many ways to continue to find people.
Jiang Yuan looked at the time and saw that it was already 10 o'clock in the evening. If he delayed any longer, he would definitely have to stay up all night today.
Jiang Yuan simply said: "Get me a computer and I'll adjust the pictures."
I have been chewing ginseng code words recently, and the effect is quite good. Gradually, I can feel a hint of sweetness from chewing dry ginseng... Today I found that I had eaten half a can of ginseng. I felt that I had eaten a bit too much, so I sucked it in the evening.
Taking one piece under the tongue seems to be effective...
