Chapter 78 A terrifying reasoning upon careful consideration
This place is far away from the village, and the ravine is even more inaccessible. It is unlikely that the other party will leave the ravine on foot after abandoning the car.
Most likely he left by car or car.
Since it is a ride, the vehicle will leave traces of its driving, and Lu Chuan hopes to find tire traces.
All the work is going on in an orderly manner.
While Lu Chuan and others were investigating the scene, the traffic police began to conduct surveillance on the surrounding roads, centered on the ravine.
Yuan Shaokang did not rush over, but went to the High-tech Zone Criminal Police Brigade to investigate all major cases that Song Kun took over.
Of course, petty theft does not count, at least it is the level of sending people in.
Six thirty in the afternoon.
Lu Chuan returned to the ravine where the vehicle was burned. By this time, the frame had cooled down and all the debris had been collected.
"It is estimated that we will not be able to conduct live surveys today."
The sky is starting to get dark, and the conditions for outdoor surveys are no longer met.
Even with lights on, there will still be shadows.
In the live survey regulations, the results of live surveys done under such conditions are not recognized.
Looking at the sky, Liu Guodong shook his head: "We will come back tomorrow morning, Xiao Lu, what did you find there?"
Lu Chuan nodded: "There are some findings. There are more than a dozen sets of footprints and tire marks."
"The footprints are better and clearer, but the tire marks are worse. I collected four sets of tire marks on them. I need It requires analysis and identification.”
Tire marks on asphalt roads are relatively easy to collect from the perspective of on-the-spot investigation.
But the road is not for criminals, there are many vehicles passing through.
Lu Chuan collected four sets of tire marks, all left by different vehicles.
It is unknown which car the suspect was in, or whether he was in the car.
The work on site can only be suspended because it is getting dark.
But this does not mean that everyone can rest.
A criminal police officer who was about to retire was deliberately killed by someone who faked the scene of a car accident. The consequences were unimaginable by anyone.
The police itself is a high-risk profession, and no one can guarantee that they will work until retirement.
It's the Haizhou Criminal Investigation Detachment. Every year, there are one or two who get first-class merit by lying down.
This is reality that every police officer must face.
Of all the police, criminal police and anti-narcotics police are the most likely to lie down.
This is why these police types occupy the top position in the contempt chain of the police industry.
Because they worked hard for this.
Song Kun was killed, and his nature was even worse.
With three months left before retirement, Song Kun will be able to retire successfully.
Three months!
Just three months!
If this case is not solved, the people in the Haizhou public security system will almost lose their hearts.
The entire criminal investigation detachment was brightly lit, and everyone could experience the atmosphere of tension to the bottom of their hearts and depression to their bones.
Not only the criminal investigation detachment, but the traffic police detachment was also idle.
With the ravine as the center, all vehicles within a radius of ten kilometers are being registered.
As long as there are vehicles that appear at that time point, they must be investigated.
This is a huge workload.
However, based on the time when the vehicle involved in the accident caught fire, if the murderer left by car before Li Kai and others arrived, this time difference would have been enough for him to leave Haizhou.
It is even possible to reach Tianzhou.
So, ten kilometers, which sounds like a large range, is actually only a small part of the theoretical investigation.
The reason why the traffic police detachment designated this area is because they only have so many manpower.
Now surveying the laboratory.
Lu Chuan is studying the footprints collected at the scene.
Lao Bai and Yang Sen have collected the footprints of all the police who have been to the scene today.
Now, Lu Chuan first needs to eliminate the footprints.
Although Liu Guodong, Yang Sen and Bai Wenhai have not done any research on footprint analysis, ordinary identification is still no problem. "This is Li Kai's shoe print... This pattern... belongs to the short traffic policeman..."
It is not difficult to distinguish. There is a target footprint comparison. You only need to follow the pattern of the texture to make the most simple distinction.
In the end, Lu Chuan only had two sets of unfamiliar footprints left in his hands.
On the backlit board, photos of two sets of footprints hang.
"Are there two murderers?"
Liu Guodong crossed his arms, frowned tightly, and his deep forehead wrinkles could kill mosquitoes: "Is it someone's response or a coincidence? Someone is in the ravine Did you leave any footprints in it?”
Lao Bai shook his head: "The possibility of a response is high."
Yang Sen also echoed: "The clarity of the two sets of footprints is similar. The ravine where the murderer abandoned the car is inaccessible, so it is unlikely that someone will go in by chance."< br>
“Furthermore, it just rained four days ago, but these two sets of footprints have no traces of water.”
Footprints left on the soil generally do not disappear quickly in the rain. , unless it’s a heavy rainstorm.
But after being washed by rain, the footprints will become round and smooth.
This difference, how to describe it, is that one is a girl who has not left the court, and is indifferent.
The other is a plump young woman, who looks plump and plump everywhere.
"Let's analyze it first. It is most likely that the other party is two people."
Liu Guodong and others had already discussed it when they were identifying the footprints.
The murderer faked the scene of the car accident. After the hit-and-run, he drove the car into a ravine and burned it.
This was definitely not a spur-of-the-moment idea, but had been planned for a long time.
The murderer left the ravine. Since the probability of walking is small and the probability of taking a car is high, it means that there should be someone else to meet him.
Of course, the murderer parked the car beside the ravine alone, then drove the stolen car and hit Song Kun to death, then returned to the ravine, abandoned the car and set it on fire.
It is not impossible to leave in the car you prepared in advance.
Inference is something that all criminal police officers like to do.
What Liu Guodong and others can think of, there is no reason why Ren Qiang and others who are investigating on the front line can't think of it.
Moreover, their analysis is definitely more profound than that of Liu Guodong and the other four, and there are more possibilities for reasoning.
For example, the murderer was neither a single person nor a two-person crime.
Is it possible for three people?
Of course.
Who stipulated that when Song Kun was hit and killed, there was only one person in the vehicle?
And if there is really not only one person involved in committing the crime.
Behind Song Kun’s death, it was really not that simple.
It is possible for a person to kill Song Kun because of hatred.
What about two people?
Even three people have a grudge against Song Kun?
Or is it that the people Song Kun arrested over the years gathered together to discuss revenge against him?
Some things are terrifying to think about.
However, these things are what frontline investigators such as Ren Qiang and Yuan Shaokang are worrying about.
What Lu Chuan needs to do now is to conduct identification and analysis on the two sets of shoe prints.
And it must be completed in the shortest time. There will be more difficult tasks waiting for him tomorrow.
In the laboratory, Liu Guodong and others are now helping Lu Chuan.
Of course, to be honest, the three of them didn't know how to do anything. They just watched Lu Chuan doing analysis with an enamel jar.
Measure the length of the footprint, the width of different points, the data between the lines, and the width of the edge.
Then there are a bunch of formula calculations.
Bang bang bang bang!
Lu Chuan’s fingers clicking on the calculator were very rhythmic and the sound was dense.
Then the conclusions appeared on the straw paper.
Nine twenty-eight pm.
Lu Chuan took a deep breath of Huazi: "Finally done."
(End of this chapter)