In the time that followed, Hua Yu told me some basic essentials for solving the case.

Hua Yu said that the first point of solving the case is to investigate the scene at the earliest time.

In some on-site cases, on-site investigation can be said to be the four points and premise of all investigative work.

In China, on-site investigation is generally carried out by the criminal investigation and criminal investigation technical departments.

General criminal investigation technicians are responsible for the investigation and inspection of the scene, mainly that is, the discovery, extraction, collection, recording and other traces and physical evidence of various crimes.

Criminal investigators are responsible for on-site investigation visits, as well as pursuit and interception in case of emergency.

At first, I had the attitude of listening casually, but as soon as I heard what Hua Yu said, I began to listen carefully.

It seems that Huayu really doesn't understand a little bit.

"These are the most basic things to solve the case, there is no big source, whether it is the police or us, it is all the same." Hua Yu didn't have the kind of coy attitude of his predecessors in front of me.

I was very curious, and hurriedly asked, "Is there any specific operation process?" ”

"So you want to know?" Hua Yu looked at my attitude, and seemed a little unaccustomed.

sighed and said, "Okay, for the sake of your dedication, my aunt will tell you about it today." ”

The steps of this on-site investigation are also easy to say.

First of all, it is necessary to inspect the whole area, observe in the part, and then inspect it individually.

However, in order to be truly proficient, it is necessary to make a breakthrough through a large number of continuous summarization and improvement in practice.

Hua Yu continued, I'll give you a simple example, so you should understand.

We divide the main objects of the on-site inspection into ABCDE.

A, it is the place of the crime, mainly to find out the location of the criminal's hidden observation, the route in and out of the scene, the way of intrusion, the path of the scene activities, and the place where the stolen goods, murder weapons, abandonment, and burial of the body are secretly disposed of near the scene.

On the basis of the above, make a judgment on whether the criminal is familiar with the scene, the motive for committing the crime, the time, the means, and the personal occupation.

B is the traces of crime, such as hand prints, footprints, tooth prints, lip prints, shoe prints, swords, guns, sticks, axes, saws and hoes and other traces of destruction.

There are also wheel marks, explosions, burning, and corrosion marks.

Based on the above traces, we can make a relatively close judgment on the time and number of criminals, and the gender, age, height, weight, and occupational characteristics of the criminals.

C is the remnants of criminals, such as human secretions, documents, tickets, paper, soil, hair, bloodstains, sweat spots, pollen particles, cloth fibers, etc.

D. The autopsy should find out the cause of death of the deceased, whether it was normal or unnatural death, whether it was poisoning, suffocation, accident or homicide.

There is also the time of death, the instrument that causes its death.

E. Physical examination, examination of the physical characteristics, injuries or physiological state of the victim or suspect.

After listening to Huayu's basic analysis of the essentials of solving the case, I can't express my reaction in words.

If I had to say anything, I would only say it with shock.

"It turns out that there is still so much professional level of knowledge to solve the case." I moved forward with some excitement and asked, "Is there any trickery about that?" ”

Hua Yu was stunned for a moment, thought for a while and said, "Skill? This is not true, but you must think clearly, and in the case of not knowing the case very well, you can also grasp the key points and know what to ask, and secondly, you must be able to do ideological work, so that people who are nervous, have concerns, and do not trust the police can boldly provide clues. ”

"I see, it looks like I still have a lot to learn." I said this sentence without falsehood, of course, it also confirmed what Hua Yu said before, the reason why Red Eagle would let me enter the firm.

Speaking of this, Hua Yu was also a little indignant and said: "But I am very unhappy with the attitude of many ordinary people towards the police now." ”

"Why?" I said suspiciously.

"People are like this now, when they need the police, they are police uncles, police aunts, once something happens and you can't solve it, then their skills to harm people are really not a score, although the police in Huaxia sometimes have a little lack of quality in solving cases, but Gu Yun said, people are not saints and sages, they are all out of the womb, especially the front-line police, no one can guarantee that they can see the sun tomorrow."

Hua Yu's innocent and somewhat angry expression showed that at this point, she had indeed suffered a lot of grievances.

But isn't that the nature of work? Many times I am angry to make money, and when I am angry, I get used to it.

I patted Huayu on the shoulder and said, "Okay, don't think about it so much, in fact, I used to say the same as you said, only after my brother was killed, I really realized that it is not easy for the police, in the eyes of many people, civil servants are dry food, but there is a good saying, you have not really come to that step, how can you appreciate the hardships of this kind of work." ”

In fact, not only the police, but also criminals, if it is not for the congenital conditions that cause these people to commit crimes, how many people in the world are willing to break the law and commit crimes?

If society gives them a little more love, how can they take revenge on society?

If parents care and educate a little more, how can children go to the point of no return?

The so-called cause must have effect, and nothing in this world will happen for no reason.

It's just a matter of how the person who looks at it sees it.

After about a day, Lao Maozi really arranged seven or eight local security guards for us, all of them big men with different skin tones.

Their task was mainly to protect us, and because they were required to carry guns, they were paid five times more than normal.

Lao Maozi also paid for us very happily, and the time limit of this security team is one month.

In the past three days, Huayu and I have basically made no progress, and there has been no major breakthrough in contacting Lin Yang.

Liu Min and Huang Neng are still at large, and it is not clear where they are.

The only thing that can be assured is that the two men do not have any record of going abroad.

But Lin Yang said that there is no record of going abroad, it does not mean that there is no smuggling, let us pay attention over there.

If Liu Min and Huang Neng are members of the Hidden Organization, then we will be very dangerous here.

But what I don't understand is that we haven't met Liu Min, and they shouldn't know us.

But due to the seriousness of the matter, Lin Yang still asked us to pay more attention, this kind of extremely dangerous person, if you want to find a person's detailed information, it is very easy.

If this is the case, then you really have to pay attention to it, and the two of them have already been smuggled out of the country.

Otherwise, why is there no trace of these two people in the country?