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

Chapter 79 Chicken Nest Head Qin Yong

The results of the comparative analysis of the two sets of footprints surprised Liu Guodong and the others.

"A man and a woman?"

Lao Bai took the analysis report and read it carefully: "Xiao Lu, did you make a mistake?"

Lu Chuan shook his head. He was a little uncertain about the results of the identification and analysis at first.

In homicide cases, the proportion of women is relatively low in terms of the gender probability of murderers discovered throughout the history.

When Lu Chuan was in college, he was exposed to probability analysis data in this area.

Men are born with advantages over women in terms of physical strength and courage.

Murder is often not only technical work, but also physical work, especially many murder cases also involve hiding and moving corpses.

However, in some planned premeditated homicides, the proportion of women is higher than the overall gender probability of murderers.

This is also the reason mentioned above. Women's physical strength is average. Compared with men, women's killing methods are more inclined to poisoning or other technical killing methods.

However, a man and a woman kill each other...

In non-love homicide cases, it is indeed uncommon.

"This group of footprints," Lu Chuan picked up one of the photos of the footprints: "This group of footprints, on the surface, are traces left by men's shoes size 41."

"However, the internal and external, front and rear forces of the footprints are not uniform, and the center of gravity of different groups of footprints has shifted forward and backward."

"I carefully analyzed the force of the heels and palms of these groups of footprints, the force points, and combined with the depth of the shoe prints, I calculated that the person wearing these shoes weighed less than 1.6 kilograms and was about [-] meters five. .”

"And here," Lu Chuan inserted the photo of the shoe print into the backlight, and took out another photo of the shoe print: "This is a photo of the right foot of two sets of unfamiliar shoe prints."

"Both pairs of shoes are 41 sneakers, but the texture is different."

"But the wear on the edges, the heel...the sole...the outer edge and the inner edge are different, but the wear is basically the same."

"What does this mean?"

The three of Liu Guodong are also old surveyors, although they are not so experienced in footprint analysis.

But the general situation can still be distinguished: "The degree of wear is different, and the wear parts are the same. Are these different shoes worn by the same person?"

Lao Bai gave the analysis that Lu Chuan wanted to hear.

Yang Sen nodded and continued: "It's just because the time of purchase is different, so does this happen?"

"It is impossible for a person to appear on the same scene wearing two pairs of shoes at the same time."

Liu Guodong took off the photo of Lu Chuan's shoe print on the back panel first: "There were two people at the scene, and one of them was a woman wearing a man's shoe?"

"Yes, that should be the case."

Both groups of shoe prints are relatively clear. Although Lu Chuan has mastered the ability of primary footprint identification and analysis, generally speaking, the analysis of shoe prints with this level of clarity can be completed in an hour.

This time, the reason why it took half the night was mainly to deal with the shoe print.

"But why?"

Lao Bai shook his head: "Why does this woman wear the other's shoes?"

"They didn't clean up the shoe prints left behind, which shows that the other party has no anti-reconnaissance awareness in this regard."

"Since there is no such thing, why does this woman wear men's shoes?"

Lao Bai's problem is indeed a problem.

But Liu Guodong shook his head: "What's so strange about this?"

"It rained last week. I went to pick up my wife. There was a section of water at the entrance of the unit. My wife took off her high heels and wore the spare police boots in the trunk of my car."

"The ravine is very rustic. If the other party wears high heels, it is reasonable to temporarily change into the sneakers of the accomplice."

"That's it," Liu Guodong finally made a decision: "Let's send the report to Team Qin first, and tell them our guess."

"Leave the rest to Ren Qiang and the others."

"The key is..." Liu Guodong looked at Lu Chuan: "How accurate is this appraisal...?"

Lu Chuan paused, he knew what Liu Guodong meant.

The current investigation office is responsible for the identification and analysis of physical evidence.

Reasoning and solving cases are not their business, and they are not good at these.

The key task of the current survey office is to come up with a powerful and accurate analysis report.

Provide technical support for front-end detection and analysis.

"The result of the male footprint identification is more than [-]% sure."

"The accuracy of women's reports... [-]%! At least [-]% sure."

Ninety percent, seventy percent!
"This accuracy rate is already very high."

Liu Guodong has been doing spot surveys and trace inspections for so many years, and he knows that nothing is 100% accurate.

Especially in physical evidence analysis, no one dares to say that what they do is absolutely correct.

They can only do their best to come up with a relatively accurate appraisal result.

Therefore, generally speaking, most criminal policemen are unwilling to deal with zero-confession cases.

It's not that there is something wrong with this method of handling the case, but because of the psychological influence, without a confession, I always feel a little meaningless.

Just like relaxing in KTV, just singing is also very fun, pleasant for body and mind, and cultivates sentiment.

But if you don't go upstairs, you always feel that something is not done.

That's what I mean by scratching my head.

Life is all about fulfillment, not only the foreplay of life, but also the venting of dissatisfaction.

Like a clogged faucet, the filth just squirts out.

The famous saying goes well: general rule does not hurt.

Conference room one.

Qin Yong has been in command all night.

"Tell Yuan Shaokang, starting from Song Kun's first prisoner caught by the police, I want information on all suspects related to Song Kun."

"Where were they when the case happened today? Is there any alibi? Let the people from the criminal police brigade of the high-tech zone go to investigate one by one, so that none of them can be missed."

"What happened to Song Kun's disappearance case before the accident?"

"And he went to the orphanage to deliver apples. How long has it been? Does anyone know?"

"It's definitely not a coincidence that the other party did it on Longjiang Road. They must have figured out Song Kun's habits."

"Don't give me reasons, tell the traffic police that all vehicles within a radius of ten miles must be checked!"

"No one? No one, I'll borrow it. Director Song has sent a message. If the police force in the city is in need, the filers will help me!"

Qin Yong's hair has been blown into a chicken coop.

A criminal policeman who was about to retire was killed in a fake car accident. There must be something hidden behind it.

The policeman can die, because the mission is dead, nothing.

This happens every year.

But being killed in a fake car accident, what is it?
This is a provocation to the police!

The case has been reported to the provincial department, and the leaders attach great importance to it.

The head of the provincial department personally called Director Song Jiangguo.

There is only one requirement, and the case must be solved.

They want to give all the police an explanation.

However, more than ten hours had passed since Song Kun was killed, and the progress of the case was very limited.

Apart from the burned vehicle, there were no other clues.

Qin Yong even felt that there was a sharp sword hanging above his head all the time.

And it will fall anytime.

This case can't be solved...

Qin Yong, the captain, is almost done.

If Song Jiangguo didn't dismiss him, he would have no face to do it himself.

bump!
The door of the meeting room opened, attracting everyone's attention.

Seeing that it was Liu Guodong, Qin Yong's eyes lit up.

"Old Liu, is there any good news?"

(End of this chapter)