Although the current investigation office does not keep files, the exhibits of all cases are preserved at the current investigation office.
Lu Chuan planned to try new skills on the backlog of cases left by the previous criminal investigation detachment.
Murder cases must be solved is the attitude across the country towards the detection of murder cases, but this does not mean that all murder cases can really be solved.
For example, the series of murders in the woolen mill twenty-eight years ago.
If Lu Chuan hadn't obtained the system's true eye, who would have thought that the dignified five-star hotel manager would turn out to be a wanted criminal who had been wanted for twenty-eight years.
This is just like not all children can find their biological father.
Of course, Lu Chuan was not confident that he could solve a murder case with just basic footprint analysis skills.
On the one hand, not all murder scenes leave footprints.
On the other hand, as long as there is a backlog of murder cases, it will definitely go through many rounds of old case battles.
It can still be saved, and the difficulty of detection is not ordinary.
Although Lu Chuan felt that his current knowledge of footprint analysis definitely exceeded that of Liu Guodong, he was not confident that he could surpass those experts from the provincial department.
Lu Chuan knew that the top footprint analysis experts could identify the other person's occupation, living habits, and even the shape of his legs, such as bow legs, hunchback, etc., just through shoe prints.
In addition, Lu Chuan didn't want to beat himself up. Wouldn't it be nice to find an easy-to-solve case and experience the feeling of a detective?
Soon, Lu Chuan found his target in the system. A year ago, a robbery and wounding case occurred in Haizhou City High-tech Zone.
The victim was stabbed on the arm and robbed of $820 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 boy or a girl, let alone see what the other party looked like, so no portrait was left.
The other party did not leave any fingerprints, and the current investigation only collected a bunch of footprints at the scene.
In fact, it stands to reason 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, as one of the eight major serious crimes, the robbery case must be focused on by criminal investigators regardless of the amount. Last year, when the crackdown was launched, this case received a certain amount of attention.
Unfortunately, the Criminal Investigation Detachment specially arranged a group of people to follow up, but there was no progress.
"Okay, it's you!"
The case was not big, but it was of a bad nature, and the information at the scene only contained footprints, which was in line with Lu Chuan's goal.
This thing is like a thief's spot. When you don't know what the person in your boudoir looks like, you have to identify the target through other channels.
The big houses of wealthy families have special nursing homes, which are too risky, and it is difficult for a small family to have any beauty. The homes of ordinary people are just fine. At most, there are a few watchdogs and a few buns can take care of it.
The current investigation has a special evidence storage warehouse, so even though there are only four people in the current investigation, the treatment is good.
Lao Liu was treated as a deputy subject, and Yang Sen and Lao Bai's status was not low either.
In addition to special vehicles (professional vehicles currently surveying), there are also special laboratories. No, there is also a special warehouse under the building.
This warehouse is also very particular. I heard from Liu Guodong that the detachment spent a lot of money to renovate it three years ago. The current warehouse has constant temperature and humidity.
The reason is also a bit strange. Many years ago, the detachment handled a strong alkali murder case. The murderer was very good. He wore a condom when committing the crime and threw it in a nearby trash can after the incident.
It was by following this clue that the suspect was identified.
The suspect was eventually sentenced to death, but death penalty cases are subject to regular review.
As a result, when this key piece of 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, we would have to live with it.
So with a stroke of a pen from above, funds for the renovation of the existing evidence warehouse were released.
A week ago, Liu Guodong took Lu Chuan to the warehouse and introduced each area to him.
In Liu Guodong's view, when he retires, young people like Lu Chuan will definitely take over. Sooner or later, the family's wealth will have to be handed over to young people, so there is no need to hide it.
After the young people grow up, the old people can also relax.
However, this time Team Qin gave Lu Chuan a holiday, and they had to do the work...
All information is stored according to age and divided into categories. There are only five boxes in the robbery case backlog.
Arriving at the case backlog area, Lu Chuan successfully found the evidence of last year's robbery case.
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 the case of Zhang Wen and his son killing each other. Lu Chuan went up, whether to help or not to help.
Simply experiment with new skills in the warehouse.
Anyway, the warehouse has constant temperature and humidity, as well as 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 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 virtual edges, weight, stride length, pressure and other traces of the footprints are all very obvious.
When the case was solved last year, the Haizhou City Criminal Investigation Detachment also invited experts in this field to conduct analysis, but they were only the investigating criminal police from the next city.
He is much better than Liu Guodong, but compared with real experts, he is not even a little bit worse.
Therefore, I made some basic judgments at that time. Males should be between 1.7 and 1.8 meters tall.
Other details are sparse.
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 injury, the amount was too small after all, and the person could not even be considered a minor injury. If the case was really submitted, Qin Yong would be embarrassed or not, and the file would easily be thrown out.
"Ding"
"The basic task is to use footprints to analyze the physical characteristics of the suspect in the robbery and injury case."
Although it was just a basic task, there was no reward for completing it, but it could help you become familiar with the skills. Lu Chuan continued to observe.
"The virtual edge is not stressed enough...the center of gravity is behind..."
Lu Chuan had already entered the state at this moment, and started to compare several sets of footprints together.
The calculator on the mobile phone also opens and starts calculating the measurement data.
"its not right……"
Half an hour later, Lu Chuan frowned as he took all the measurement and calculation data.
There was no doubt he was in trouble.
Sure enough, none of them can become a backlog of cases simply.
No matter at any time or anywhere, never treat the police as freeloaders.
Although this robbery was not a big case, it was one of the eight serious crimes. In such cases, the bureau had indicators for assessing the criminal investigation detachment.
In fact, this is also one of the important assessment indicators for the provincial and municipal bureaus.
Therefore, the people who handled the case last year must have tried their best.
The reason why Lu Chuan frowned was not because he had doubts about the skills rewarded by the system.
But the results of his calculations are very different from the characteristics of the suspect targeted at the time of the crime last year.
Even subversive.
Because according to his calculations, the owner of this shoe print should be a woman!
