"So I think what Lao Bai said is right. When the murderer entered the scene, he should have laid something on the ground to prevent his own footprints from leaving and stepping on the cleaning staff's footprints, causing the other party's footprints to be blurred."< br>
Lu Chuan nodded.
He thought so too.
Also, he just did some experiments while in the basement.
I found that if you cover the footprints with plastic sheeting and then step on them, similar marks will be left.
However, Lu Chuan still had some doubts.
That is, the degree of blurred footprints left by cleaning staff is not the same.
And the blurred areas left by some blurred footprints are also different.
Lu Chuan tried to use the cleaning staff's blurred footprints to conduct some identification and analysis on the footprints exerting pressure on them.
As a result, two different conclusions were drawn.
"There seemed to be two people coming in and out of the scene. One of them was between 1.7 and 1.8 meters tall, and the other was between 1.6 and 1.7 meters tall."
"But there were footprints between them. , the accuracy of the footprint identification analysis through the covering is very low. My prediction is just an inference and cannot be used as direct evidence.”
That’s why Lu Chuan called everyone together to study together.
"Or to say that two people came in and out is just a guess."
Yang Lin on the side listened to the discussion between the four people and did not interrupt.
For him, this is a rare learning opportunity.
When he was in college, Yang Lin had good grades in the class.
But what you learn from books is dead after all, and it is completely different from what you encounter on site.
Yang Lin knew very well what level Lu Chuan's footprint identification and analysis was.
But this time, even Lu Chuan was not sure whether the results of his analysis were right or wrong.
That meant the scene was far more complicated than he imagined.
“I have a proposal.”
Liu Guodong suddenly spoke.
He did not open his mouth to affirm or refute Lu Chuan's speculation.
Because Liu Guodong knew very well that Lu Chuan's footprint identification and analysis ability was among the best in the province. Liu Guodong was not sure about things that he was not sure about.
"Since the crime scene has been determined and is not the first crime scene, can we find the first crime scene through some methods?"
Lao Bai was confused: "How to find it?"
"Corpse!"
"When the body was found, there was no clothes on it."
"No matter whether the murderer took off his clothes in the church or in the first place He took off his clothes at the scene of the crime.”
"I think there will be some traces left on the corpse. Can we conduct a trace evidence analysis on the surface of the corpse?"
Liu Guodong's proposal is indeed a feasible solution.
And trace material analysis is not particularly difficult for modern field exploration offices.
I just need to continue working overtime.
"Okay, I'll go to the forensic office later to do some collection."
Lu Chuan nodded: "Try to get it done during the day."
The investigation of Zhang Cuicui's ex-husband Song Tiezhu by the action team has entered a critical stage.
Song Tiezhu currently lives in a low-rent house in the suburbs of Haizhou City.
According to the information obtained from Zhang Cuicui’s parents, after Song Tiezhu and Zhang Cuicui divorced that year, Song Tiezhu received a lot of family property.
It’s just that because of gambling and alcoholism in recent years, he had to support a young daughter-in-law in the early stage, so he lost all his money in a short time.
Zhang Hui arranged for personnel to retrieve the surveillance footage from the gate of the low-rent housing complex.
The result is that Song Tiezhu lied.
After the action team determined that Song Tiezhu was suspected of committing the crime, they immediately took control of him and conducted an interrogation.
According to Song Tiezhu, he was at home all the time on Friday night and didn’t go anywhere. He went to his parents’ place for lunch and dinner during the day on Saturday, and then returned to the low-rent house until Sunday. It was around ten o'clock in the morning when I came out of the low-rent house and went to my parents again. "Boss, Song Tiezhu lied!"
Xiao Chen looked excited. He had just checked the surveillance cameras in the low-rent housing complex.
"Song Tiezhu left the community at around 7 o'clock on Friday night and has not come back since."
"Look, this is the surveillance picture of him leaving the community."
The surveillance in the community is high-definition surveillance, and the picture is very clear. Song Tiezhu left the community at 7:28 pm on Friday.
“He returned to the community at 10:30 noon the next day, and his clothes had already been changed!”
Xiao Chen's discovery gave the investigators a shot in the arm.
"Let's go! Go to the interrogation room!"
After Zhang Hui got the evidence, he led people into the interrogation room again.
On the interrogation chair opposite, Song Tiezhu looked tired and his eyes were blurred.
"What I say is true...you have to believe me...hiccup..."
A strong smell of alcohol permeated the entire interrogation room.
Bang!
Zhang Hui slammed the table, and the loud noise startled Song Tiezhu.
"Song Tiezhu! You lied!"
"You did not go home after leaving the low-rent housing complex at 7:28 pm on Friday night. You did not come back until around 10 a.m. on the second day. , and also changed a pair of clothes.”
"The time Zhang Cuicui was killed was 10:30 pm on Friday night."
"You said you didn't kill the person, then tell me where you were during this time!"
"I ..."
Song Tiezhu waited for a long time, knowing that he couldn't hide it, so he finally told Ai Ai what happened that night.
"I was indeed not at home that night..."
It turned out that Song Tiezhu went to an underground casino to gamble money that night.
“Where is the place?”
“Yifenli Auto Repair Shop, Youhao Road, High-tech Zone.”
“That place appears to be an auto repair shop, but in fact it is It’s an underground casino at night, and we often go there to gamble.”
“But you must not be accused of telling me. If they know that I gave up the place, I will be finished!”
Zhang Hui snorted coldly.
Do you still know that you are finished?
“I brought 21,000 yuan with me, and then I lost it all in less than half a night, even all the clothes I was wearing.”
“Then it was about 2 a.m. Many times, I was kicked out by the security guards of the casino. "
"Actually, I was rich during those two days, but Zhang Cuicui never called me. I had no choice but to go directly to their house that night. ”
"She didn't give you money, so you killed her, right?"
"No, no, no!"
Song Tiezhu quickly shook his head: "Comrade police, I really didn't kill him, I'm not stupid. Zhang Cuicui's death will do me no good at all. No one will give me any money."
"And you also said that he died at 10:30 on Friday night, but. It was around 2 o'clock in the morning when I arrived at her house."
"There was no one at home when I went there."
"Really!"
"No one? How did you get in?"
"The key, I asked my son to give me the key..."
"Then I didn’t find anyone, so I looked through the drawer and found 20,000 yuan, so I left.”
“Really, I didn’t do anything else!”
……(End of this chapter)