Circle culture exists in every industry.
For example, Lu Chuanqian's on-the-spot detective, everyone is in the same circle, has relatively little communication with the outside world, and is relatively closed.
There are actually only so many detectives with excellent abilities in the province. Some are good at fingerprint identification and analysis, some are good at footprint analysis, and some are good at bloodstain morphology analysis.
Of course there are people like Lu Chuan who are good at several abilities.
Lu Chuan had participated in the fingerprint battle of the municipal bureau and the fingerprint battle of the provincial department. After these two large-scale battles, he knew almost all the capable detectives in the province.
Changes will not be particularly big in a short period of time, and this short period of time is actually not that short, it may be 10 or even 20 years.
The same is true for theft and robbery. Theft has a circle of theft, and robbery has a circle of robbery.
Lu Chuan heard from Liu Liu Guodong before that in the years when theft crimes were particularly rampant, the entire criminal gang organization even divided Haizhou City into areas.
Who is responsible for this urban area, who is responsible for this street, and who owns this community? They all have their own owners.
Many thieves even check out and mark the target door before committing theft.
That way, different people in the same organization won't fight with each other.
People from outside who are passing by for a while and enjoying the autumn breeze will not conflict with the local forces.
The same is true for robberies. Most of the robberies are committed by local gangsters.
The robber chosen by Lu Chuan had three previous criminal records.
There were two theft crimes and one robbery.
After confirming the personnel information, Lu Chuan sent it directly to Ren Qiang.
As a technical police officer, Lu Chuan does behind-the-scenes work and will not participate in arrests if he can.
In addition, whenever handling a case, unity and cooperation must be emphasized, and different functional departments must cooperate with each other.
Lu Chuan found evidence while scanning the image. This was the key clue. After determining the identity of the criminal suspect, the arrest work should be completed by the action team.
With credit, everyone will share it equally. In a united group, it is not good to be alone.
Ren Qiang was chatting with Zhang Hui about the case of the past few days, and the Mobile Police Messenger on his phone received a message from Lu Chuan.
Ren Qiang is impressed by this case.
“Zhang Hui, look at this.”
Zhang Hui glanced at it: “That robbery at Qianjin Street Police Station?”
The robbery is a major case, but I can’t say how big it was. The first person to investigate this case was the Qianjin Street Police Station. After it was not solved, it was reported to the Criminal Police Brigade. The Criminal Police Brigade handed it over to the Criminal Investigation Detachment without being solved.
The person who was robbed was not injured, but only lost some property. The criminal investigation detachment did not invest much effort at that time, which resulted in a backlog of cases.
Of course, once the case is in the hands of the criminal investigation detachment, it does not mean that it cannot be solved, but the effort invested is not proportional to the output.
This robbery cannot be done according to the specifications of a murder case.
Judicial resources are limited at any time. Unless it is a murder case, other cases still have to pay attention to the input-output ratio.
But now, Lu Chuan directly locked the identity of the suspect, and the action team was responsible for the arrest.
The action team is absolutely familiar with the task of arresting a robber. Once they deal with a robber with more than a dozen big men, the other robber cannot escape at all.
"Let's go, call our brothers and let's go!"
Lu Chuan completed the processing of one backlog of cases and started the next one without stopping. There was no one to disturb the quiet underground laboratory. Lu Chuan also talked to Forensic Doctor Shen on the phone and told her that she had to deal with previous backlogged cases during the day and would not chat for the time being.
So, Lu Chuan, who had nothing else in mind, was extremely clear-headed and high-spirited at the moment, and he was in the best condition.
This made Lu Chuan feel like he had found the provincial department to participate in a fingerprint battle. He concentrated on solving the case without thinking about anything.
This time, Lu Chuan dealt with the only two backlogged theft cases last year.
Compared to the robbery case, this case was actually simpler for Lu Chuan.
The suspect committed the crime in a very sophisticated manner. He wore gloves when committing the crime and did not leave any fingerprint information at the scene.
However, it was impossible for the other party to steal and enter the room floating, so he left footprints.
For the footprint identification and analysis, Lu Chuan took the initiative and quickly completed the data measurement of the shoe prints.
When the murderer committed the crime, he must have been in a leisurely state. He left hundreds of footprints in the living room and bedroom of the defendant's home.
This is the first time Lu Chuan has seen such rich footprints at a case scene, so the data obtained through analysis are more accurate.
"Male, 1.93 to 1.96 meters tall, weighing 70 to 75 kilograms, walking with a weak splayed figure, and his left leg...is suspected to have been fractured."
A person's Footprint shape is affected by both congenital and acquired factors.
The main congenital factors are heredity, while there are many acquired factors.
For example, nutritional intake, physical development, bone quality, and external impact.
Even for the same person at different ages and different physical development conditions, the shape of the footprints is slightly different.
But this difference should be continuous, observable and conjectural.
However, once an external force is struck, such as a broken leg bone, it will have a sudden impact on a person's footprint shape.
In addition, this person is 1.93 to 1.96 meters tall. This height definitely belongs to a very small number of people.
Still using the old method, after Lu Chuan determined the basic information of the suspect, he pulled out the data of theft suspects over the years and compared them.
The first thing Lu Chuan compared this time was the height options.
Compared with robbery, the number of theft suspects in Haizhou City has more criminal records.
The main reason is that compared with robbery, the probability of being caught is relatively smaller.
If he is not caught once or twice, the criminal suspect will have a sense of self-confidence and the accumulation of proficient skills and experience.
It's like some old perverts, walking in an alley, their eyes will converge as soon as they raise their eyes, and they will know what this person does without even saying hello.
Even the price is well known.
So you can complete a sublimation with satisfaction.
The smaller the probability of being caught, this leads to a larger base of suspects committing theft and more crimes.
But when people walk along the river, their shoes don’t get wet. The more you steal, the more likely you are to be caught.
After years of accumulation, almost all the thieves with accumulated skills in Haizhou City have been caught.
So, Lu Chuan quickly found the corresponding criminal suspect in the criminal record suspect database this time.
Stretching, Lu Chuan sent the data to Sun Jun. (End of this chapter)