Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chapter 8
Although the current investigation office does not keep files, all the evidence of the case is preserved in the current investigation.

What Lu Chuan plans to try new skills is the accumulated cases left by the previous criminal investigation detachment.

Homicide cases must be solved is the nationwide attitude towards the detection of murder cases, but it does not mean that all murder cases can really be solved.

For example, the series of murders in woolen mills 28 years ago.

If Lu Chuan hadn't obtained the system's real eye, who would have thought that the manager of a dignified five-star hotel would be a wanted criminal who had been wanted for 28 years.

This is the same as not all children can find their biological father.

Of course, Lu Chuan was not confident that a basic footprint analysis skill could solve a backlog of homicide cases.

On the one hand, it does not mean that all murder scenes will leave footprints.

On the other hand, as long as there is a backlog of homicide cases, it will definitely go through many rounds of old case battles.

The ones that can survive are not so difficult to detect.

Although Lu Chuan felt that his current knowledge about footprint analysis definitely surpassed Liu Guodong, but he was not confident that he could surpass those experts from the provincial department.

Lu Chuan knows that the top footprint analysis experts can identify the opponent's occupation, living habits, and even the shape of the legs, such as bow legs, hunchback, etc., just through the shoe prints.

In addition, Lu Chuan didn't want to beat himself, so finding an easy case to solve and experiencing the feeling of a detective wouldn't it be nice.

Soon, Lu Chuan found his target in the system. A year ago, a case of robbery and wounding occurred in Haizhou High-tech Zone.

The victim was slashed on the arm and robbed of 820 yuan in cash.

The other party was wearing a hood and it was midnight. The victim didn't even know whether the other party was a man or a woman, let alone see the other party's appearance clearly, so there was no portrait left.

The other party did not leave any fingerprints, and only a bunch of footprints were collected at the scene.

In fact, it is reasonable to say that this kind of "small" case cannot be raised to the level of the criminal investigation detachment. After all, only 820 yuan was robbed, and the victim was not seriously injured.

However, the robbery case is one of the eight major serious cases, regardless of the amount of money, it must be targeted by criminal investigations. Last year, it caught up with the crackdown, and this case received a certain amount of attention.

It's a pity that the Criminal Investigation Detachment specially arranged a group of people to follow up, but there was no progress.

"Okay, it's just you!"

The case was not big, but the nature was bad, and the information on the scene was only footprints, which was in line with Lu Chuan's goal.

This thing is like a prostitute's stepping on the spot. When you don't know what the person in your boudoir looks like, you have to use other channels to determine the target.

Mansions of rich and powerful families all have their own nursing homes, which is too risky, and it is difficult for a small family to be attractive. The homes of ordinary people are just right. At most, there are a few watchdogs and a few steamed stuffed buns.

The current survey has a special evidence storage warehouse, so even though there are only four people in the current survey, the treatment is good.

Lao Liu is treated properly as a sub-specialist, and Yang Sen and Lao Bai's status is not low.

In addition to the special car (the current survey professional car), there is also a special laboratory, no, there is also a special warehouse under the building.

The warehouse is also very particular. I heard from Liu Guodong that the detachment spent a lot of money to remodel three years ago, and the current warehouse has constant temperature and humidity.

The reason is also a bit weird. Many years ago, the detachment handled a strong alkali murder case. The murderer was quite awesome. He wore a cover when committing the crime, and threw it in a nearby trash can after the crime was over.

Following this clue, the suspect was locked.

The suspect was eventually sentenced to death, but the death penalty case is subject to regular review.

As a result, when this key physical evidence was found, the cover was almost corroded because the warehouse was too humid.

You know, the case back then was handled by the current deputy director. If something went wrong, he would have to go back and forth.

So with a swipe of a pen from above, the funds for the renovation of the current physical evidence warehouse came down.

A week ago, Liu Guodong brought Lu Chuan to the warehouse and introduced each area to him.

From Liu Guodong's point of view, when he retires in the future, young people like Lu Chuan must take over. Sooner or later, the family fortune will have to be handed over to young people, and there is no need to hide it.

When young people grow up, old people can relax a bit.

It's just that Team Qin gave Lu Chuan a holiday this time, and they still have to work...

All the materials are stored according to the number of years, and they are classified into categories. There are only five boxes in the backlog of robbery cases.

When he came to the accumulated case area, Lu Chuan successfully found the physical evidence of the robbery case last year.

Picking up the evidence box, Lu Chuan started the comparison directly at the desk in the warehouse.

Everyone above was busy with the report on Zhang Wen's father-son murder case. Lu Chuan went up, and it was neither helpful nor not helpful.

Simply experiment with new skills in the warehouse.

Anyway, the warehouse has constant temperature and humidity, and a fresh air system, which is much better than the smoky environment above.

Unlike the fingerprint comparison system, there is no automatic comparison system for footprints.

Strictly speaking, it is not impossible. Some criminal investigation detachments have their own footprint identification experts and self-built systems, but the Haizhou criminal investigation detachment obviously does not.

Spreading out the photos, Lu Chuan began to measure the data of the footprints in detail. It had just rained on the day of the crime scene, and the footprints left by the suspect were very clear.

The imaginary edge, weight, stride, pressure and other traces of the footprints are very obvious.

When solving the case last year, the Haizhou City Criminal Investigation Detachment also invited experts in this field to do an analysis, but it was the current investigation criminal police from the neighboring city.

It is much better than Liu Guodong, but compared with real experts, it is not a star and a half worse.

So I made some basic judgments at that time, male, between 1.7 meters and 1.8 meters tall.

Other details are scarce.

As for finding experts from the Criminal Investigation Detachment of the provincial capital city or even the provincial department, Qin Yong gave up.

Although it was a case of robbery and wounding, after all, the amount was too small, and the person was not even counted as a minor injury. If he really wanted to hand over the case, Qin Yong would not be ashamed to lose it, and the file would be easily thrown out.

"Ding"

"The basic task is to use footprints to analyze the physical characteristics of the suspect in the robbery and wounding case."

Although it is only a basic task, there is no reward for completing it, but you can get familiar with the skills, Lu Chuan continued to observe.

"Insufficient force on the imaginary side...the center of gravity is behind..."

Lu Chuan has entered the state at this moment, and several sets of footprints are put together to start comparison.

The calculator on the mobile phone is also turned on to start calculating the measurement data.

"its not right……"

Half an hour later, Lu Chuan frowned with all the measurement and calculation data.

No doubt he was in trouble.

Sure enough, none of them was easy to become a backlog.

No matter at any time and anywhere, don't treat the police as idlers.

Although this robbery case is not big, it is one of the eight serious cases after all. In this case, the criminal investigation detachment has indicators for assessment in the bureau.

Even, this is one of the important assessment indicators of the provincial bureaus for the municipal bureaus.

Therefore, those who handled the case last year must have done their best.

The reason why Lu Chuan frowned was not because he doubted the skills rewarded by the system.

It's his calculation results, which are very different from the characteristics of the suspects locked at the time of last year's crime.

Even subversive.

Because according to his calculations, the owner of this shoe print should be a woman!
(End of this chapter)