Now that there are clues, even if there is a direction for the investigation, the instructor took all the students and began to follow up the investigation.

Of course, these police officers themselves are the elites of various units, and it is difficult for them to investigate these clues, and they don't even need instructors to follow them at all, they can complete these things independently.

In addition to the personnel this time, the number itself is relatively large, even if half of the personnel follow the other side, tracking the investigation clues, the manpower here is still very abundant.

It is said that the direction of the investigation this time is very clear, as long as you find out where the door lock came from, and ask someone who bought the lock, if you want to determine the identity of the murderer, you should still be able to do it.

But they forgot one thing, the whole city itself is not small, and with the population living here, it is obviously not easy to find this person.

Not to mention the door lock they are looking for, there may be a place to find a new one, but it will be difficult to find a second-hand item.

Of course, there are also some veteran police officers who have thought about finding connections, asking if there are some old friends in the local area, or simply finding some people who often slip doors and pick locks, and it is better to ask them than to look everywhere yourself.

After all, those people are really professional when it comes to door locks.

Following this direction, all the students can be said to be the eight immortals who crossed the sea to show their magical powers, and they almost turned out all the people they had caught back then.

It's just the policewoman before, who didn't seem to think about going out to find clues, but stayed at the scene of the murder, looking at every bit of layout in the room, it seemed that she was looking for something.

But this room is very chaotic, and it is really not easy to find clues.

"There are traces of a fight in the house, and the things around are almost a mess, and the people who live in this neighborhood don't hear a sound at all?"

The handsome-looking male police officer held a thick amount of information in his hand, flipped through it quickly, shook his head by the way, and sighed a little helplessly.

"Didn't you notice the words on the wall outside when you came? The time of the victim's death should have been at noon the day before yesterday, and it hadn't rained for the past two days.

Speaking of which, when she first came, the policewoman really didn't pay attention to the situation outside, and she didn't know much about the situation here, so most of her thoughts were on the murder scene.

Because her master told her at the beginning that at a murder scene, the more the murderer wants to hide the clues, the easier it is to leak the clues outside, no matter what he takes away at the scene, and at the same time he will leave something at the scene.

It seems that there are still people abroad who have done some research experiments for this, in short, he believes what the master said, there must be something left at the scene, but she has not found it yet.

Look at the worn-out chairs around them, most of them are broken wood at this time, and I don't know what a fierce fight the two had here.

"The weather in the north, generally in autumn, the sun will be very dazzling, especially at noon, the house we are in now is a three-story building, at noon, even if there are people outside, as long as the murderer is standing in the sun, basically no one will be able to see him, and you won't have nothing to open your eyes to see the sun, right?

Obviously, the murderer this time, whether it is the method of killing or the layout of the scene, looks very professional, and even the time to do it is in charge

The grip was very precise, and there were basically no clues left on the scene.

"Now we have too few clues in our hands, except for this lock that was deliberately replaced, the rest of us basically have no clues, there are no clues on the corpse, since there are no clues at the scene, we can only put the clues on the corpse. ”

The instructor stood by the wall, holding a detailed document in his hand, and glanced at the two of them, looking a little disapproving.

"It is estimated that you will not be able to see the corpse for a short time, the forensic doctor found a small amount of ether on the deceased's body, and it has been sent to the testing center at this time, only the forensic report in your hand can be used, after all, this case was originally taken over by us temporarily, and the case did not come over today, we just took it over. ”

As the instructor spoke, he stretched out his hand and pointed to the thick stack of materials in the male officer's hand, motioning for him to look at it himself.

"The deceased, Wu Dazhi, was 30 years old and unemployed. The family lives in Xiaofanzhuang, there is an old mother at home, and now lives with his sister, this person has a criminal record before, it was five years ago when he fought with others outside, and he was seriously injured, and he was sentenced to three and a half years, and he just came out recently, and now he is a cigarette dealer, and the information does not say that he offended anyone, but there are two people with him who can pay attention to it, do you want to bring people back and ask?"

This male police officer is obviously not a newcomer, and he also has his own set of procedures for solving the case.

I don't know why, it's always like a little tail, following this policewoman, as if it's this policewoman who has the final say, and he's just a follower.

Seeing that the policewoman nodded, he went out to find the two people on the information.

"The deceased was strangled by a rope and suffocated to death, there are still some traces of broken skin on the neck of the deceased, which should be caused by the struggle after being strangled by the rope, and there are some hitting wounds on the body, which should be left by fists and feet, there are no traces of injury by blunt objects or sharp objects, the only thing worth noting is that there is a certain amount of ether residue in the body of the deceased, and the rest is the back of the deceased's neck, there is a small round wound, but it is very deep and will not cause much damage. ”

"Ether? This thing should be controlled, right? Can this thing be traced to its source?"

The policewoman frowned, thought for a while, and suddenly felt that this ether might also be a key point.

After all, this thing is not easy to get hold of outside, and looking at the murderer's style of crime, it shouldn't leave too many traces on it.

Sure enough, after the policewoman asked, the instructor shook her head.

"It's very difficult, there are too many factories in the city that use ether, unless the murderer buys a large amount, otherwise there will be no record at all. ”

When the instructor heard this, he nodded again and again, and he didn't know what was written on the notebook, so he closed the notebook in his hand, turned around and walked out with her.

"I've seen your files, you used to be a film policeman in the border generation, and then because of your good performance, you were transferred by the county public security bureau above to do anti-pickpocketing work for a period of time, but you don't seem to have handled criminal investigation things, right? But your judgment just now is very detailed, who have you learned from?"

Among these students, the instructor seems to have been paying more attention to her, and seems to be very satisfied with her performance today.

After going out, I asked a few questions by the way.

It's just that after asking this, the policewoman seemed to remember something, and her body paused.

"My master is a master of criminal investigation, and when he was in the Northeast before, there were almost no cases that he couldn't solve, and any case that came to his hands was only one at most

The case was closed in a week, and I learned a lot from him. ”

It turned out to be an apprentice led by a master, so it's no wonder, looking at her analysis before, it didn't look like an anti-pickpocketing team came out at all, and some people believed that he was doing criminal investigation.

The two said as they left the scene of the crime.

In the evening, the teams that went outside to collect clues rushed back to the station from the outside, and sat in the auditorium one by one, all waiting a little anxiously.

Of course, among these people, there are many people who come back in frustration.

At the end of the day, there are still a few people who have some news in hand.

After all, Yanjing City is so big, there are not many clues that can be found.

"Hu Yizhou, come up and tell you in detail about the specific situation of this case. ”

The students were all waiting below, and the instructors also hurriedly came in from outside, holding materials in their hands, placing them on the table in front of them, and pointed to a police officer in the crowd and asked him to start talking about the specific situation of the case first.

"Victim Wu Dazhi, everyone has detailed information on the family situation, I won't talk about these, I went to the forensic doctor this afternoon to learn about the deceased's situation, according to the forensic examination, it was proved that the deceased died of suffocation, there was an obvious strangulation mark on the neck, and there were irregular wounds on the wound, indicating that the deceased was conscious when he was killed, and there were signs of struggle, and on the back and neck of the deceased, there was a round wound with a diameter of three centimeters, and in the wound, there were fine plant fibers remaining, and the preliminary judgment was that it should be something like bamboo。 ”

Hu Yizhou's introduction here, in fact, in the afternoon, the teachers had already received a notice in their hands, but these things are not very useful to them, and many people don't care about this.

On the contrary, most of the attention was paid to the door lock, and many people went outside to find some people like the head snake to inquire about it.

It's just that the news I got in the end wasn't very much, and it was very messy.

"Who else has anything to add?"

The instructor nodded and asked Hu Yizhou to sit down first, and casually asked the people below.

"Report, student Wang Deguang has clues to add. ”

As soon as the instructor finished asking, Wang Deguang stood up and took out the notebook in his hand with an excited face.

"According to the understanding, the deceased did not have a proper occupation in Yanjing, and he speculated outside all the year round, and recently he was with a person named Liu Changyuan, specializing in illicit cigarette trading, I took someone to find this Liu Changchang in the afternoon, and learned a little from his mouth, there is a person named Zhu Tianfu, who once had a grudge against the deceased, these two people were jealous because of a woman, and they had done it outside, Zhu Tianfu was injured, and once threatened to kill him sooner or later, so I think Zhu Tianfu has a certain suspicion, and I applied for the arrest of Zhu Tianfu. ”

"No, this time the murder incident should be a vendetta, the murderer obviously has the intention of torturing people in it, and most of those who threaten to retaliate are just casually talking, even if there are actual actions to pay, most of them are impulsive killings, and the scene we see, it is obvious that someone has specially designed it inside, there is a very strong performance nature, I even think that the murderer kills people, there is a certain randomness, all this he does, maybe it is not a simple revenge at all, maybe he has no motive to kill, just for a kind of show-off。 ”

Killing just to show off?

To be honest, not only the students around her, but even the instructors sitting on the podium couldn't believe her speculation.

Does a person kill people without a cause?

Is there really such a person in this world?

()

Sogou