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

"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."

Lu Chuan nodded.

He thought so too.

And, he just did some experiments while he was in the basement.

It was discovered that covering the footprints with plastic sheeting and then stepping on them would leave similar traces.

However, Lu Chuan still had some doubts.

That is, the degree of blurred footprints left by cleaning staff is not the same.

Moreover, 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 above them.

As a result, two different conclusions were drawn.

“现场好像有两个人进出，其中一个人身高在1米7到1米8之间，还有一个人身高在1米6到1米7之间。”

"But the accuracy of footprint identification analysis through footprints and coverings 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 Yang Lin was in college, his grades in the class were also good.

But what you learn from books is dead after all, and is completely different from what you encounter on site.

Yang Lin knew very well the level of Lu Chuan's footprint identification and analysis.

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 confirm 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 use some methods to find the first crime scene?"

Lao Bai was confused: "How to find it?"

"Corpse!"

"The body was not wearing any clothes when it was found."

"It doesn't matter whether the murderer took off his clothes in church or at the scene of the first crime."

"I think there must be some traces left on the body. Can you conduct a trace evidence analysis on the surface of the body?"

Liu Guodong's proposal is indeed a feasible solution.

Moreover, 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: "I'll try to get it done during the day."

The action team's investigation into Zhang Cuicui's ex-husband Song Tiezhu 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 drinking these years, he had to support a young wife 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 was 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 housing until about ten o'clock on Sunday morning. After leaving the low-rent house, I 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 been back since."

"Look, this is the surveillance footage 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 didn't return to the community until 10: noon the next day, and he had already changed his clothes!"

Xiao Chen's discovery gave the investigators a shot in the arm.

"Let's go! Go to the interrogation room!"

After Zhang Hui obtained 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 said is true...you have to believe me...hiccup..."

A strong smell of alcohol permeated the entire interrogation room.

boom!
Zhang Hui slammed the table, and the loud noise startled Song Tiezhu.

"Song Tiezhu! You lied!"

"You didn't go home after leaving the low-rent housing community at 7:28 pm on Friday. You came back around 2 a.m. the next day and even changed your clothes."

"The time Zhang Cuicui was killed was 10: on Friday night."

"You said you didn't kill the person, then tell me where you have been during this time!"

"I……"

Song Tiezhu waited for a long time, knowing that he couldn't hide it, so he told Ai Ai about the situation 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 Factory, Youyou Road, High-tech Zone."

"On the surface, that place is an auto repair shop, but in fact it is an underground casino at night. We often go there to gamble."

"But you must never be accused of saying it by 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 21000 yuan with me, and I lost it all in less than half a night. I even lost all my clothes."

"Then around 2 a.m., I was kicked out by the casino security."

"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 the money, so you killed her, right?"

"No no no!"

Song Tiezhu quickly shook his head: "Comrade policeman, I really didn't kill him, and I'm not stupid. Zhang Cuicui's death will do me no good at all. No one will give me money."

"And you also said that he died at 10:30 on Friday night, but it was after 2 in the morning when I arrived at her house."

"There was no one at home when I went there."

"real!"

"No one? How did you get in?"

"Key, I asked my son to give me the key..."

"Then I couldn't find anyone, so I went through the drawer and found 20,000 yuan, and I left."

"Really, I didn't do anything else! I didn't do anything!"

...(End of chapter)