1995, Starting as a Criminal Investigation Expert

The absurdity of Li Shu's words.

It's like two people were talking about what to eat for dinner one minute, and then you suddenly say, "Let's bury each other when we die."

No one reacted at all.

Moreover, this means that the person who said this was Li Shu. If it were any ordinary criminal police officer in the branch, Tang Weidong would probably have pointed outside the door and said: "Get out, go outside and say whatever you want."

Tang Weidong merely glanced at Li Shu and continued speaking his own words.

No one else paid any attention.

Only Lin Wanping gave Li Shu an ambiguous look and shook his head slightly.

Young man, you shouldn't think about that kind of thing, it's bad for your health.

Zhao Yong and Li Shu waved their hands slightly, indicating that they should pay attention to meeting discipline and give Tang Weidong some face.

Despite his age, Qin Wenbao was young at heart. He chuckled and nudged Li Shu with his elbow, whispering, "What are you sweeping up, pornography?"

Li Shu realized that this was all a misunderstanding.

He quickly raised his hand.

Then everyone turned their attention back to Li Shu.

"Li Shu, what do you want to say?" Tang Weidong instantly switched to a smiling face.

Li Shudao said, "Director Tang, what I mean is, could we catch the suspects through a crackdown on prostitution?"

Upon hearing this, everyone present was taken aback.

Xu Qiang was genuinely stunned. So you weren't just talking nonsense, you were trying to... arrest the suspect?

"Oh, no."

Lin Wanping, sitting opposite him, hurriedly asked, "Li Shu, how do we arrest suspects in a prostitution raid?"

This is robbery, what does it have to do with the crackdown on prostitution?

Li Shu quickly picked up the case file and told them about the scratches on Liu Yanjuan's body.

"Is this there?" Tang Weidong was taken aback and quickly picked up the file to look at it.

Xu Qiang also hurriedly looked at the information.

It was only discovered during yesterday's re-examination, and since it wasn't a significant finding, Qin Wenbao only added it to the latest data today, so he really hadn't noticed it.

Li Shu nodded and continued his analysis.

"Chief Xu analyzed it to me before, saying that the suspect might be committing robbery for the first time and didn't have much experience. Such a person should have been very nervous throughout the crime. The crime scene investigation can also prove this point."

There were signs of wiping inside the taxi, and the area of ​​the scratches was quite large, with blood everywhere.

When the body was discovered, the back door was not closed, indicating that the suspect left in a hurry.

The bloody fingerprints left on the inside of the doorknob further prove that the suspect was in a great hurry during the crime and overlooked this blind spot.

"What kind of psychology do you think it is for a suspect to suddenly grab the victim's chest during a robbery?" Li Shu asked rhetorically.

This brought up a psychological issue, and Xiao Rui suddenly said, "Li Shu, isn't this the criminal psychology you mentioned to us before? You said you were going to study it."

Lin Wanping was also there at the time and hurriedly said, "Yes, yes, you said it, we need to study why bad people are bad people."

The people present whispered among themselves.

Most people have never heard of this concept.

But Tang Weidong had indeed heard of it before, and nodded, saying, "I know about this. They say people abroad have been researching it for many years."

Xu Qiang had already come to his senses.

As a criminal investigation team leader, his most common method in solving cases is to look for unusual occurrences.

After thinking for a moment with his arms crossed, he said, "Li Shu, you're right. Why would this guy have to touch me in that situation?"

They're not seasoned veterans; they're not afraid of the victim's resistance and have plenty of time to spare.

This person was clearly a novice. They should have been extremely nervous at that time, but instead, they had ulterior motives. This is indeed abnormal.

Li Shudao said, "Director Tang, I don't know if this criminal psychology is useful, but it is a kind of research that reverses cause and effect, and as I just said, this person still has to touch it at this time."

"Then the victim was older and not particularly pretty, maybe just had a larger bust. On the day of the incident, she was wearing a low-cut short-sleeved shirt."

"If even this situation aroused the suspect, then I think the suspect must have been very eager for sexual relations, but had no way to release it, and was extremely repressed. So in that situation, he might have looked down, seen the victim's collar, reached out and grabbed it, leaving a mark."

Shao Guiying also realized what was going on and hurriedly said, "Doesn't this also answer a question, namely why it turned into murder, and why the victim resisted?"

They had always found it strange that the suspect would commit murder instead of robbery.

The unlicensed taxi driver confessed that the man had disguised himself to some extent, wearing a black cloth mask.

Now we may have an explanation.

Xu Qiang nodded and said, "That's right, it's probably because the suspect assaulted Liu Yanjuan. Think about it, she's a widow, she'd definitely be very concerned about this kind of thing, thinking the suspect was going to do something to her, so she hit the suspect with the water glass, thus provoking him."

Widows are often the subject of gossip; if they are violated, no matter how much sympathy they receive, there will still be people gossiping.

When the suspect reached out and touched her, Liu Yanjuan couldn't help but worry about the consequences, which is why she resisted.

At this point, Xu Qiang's thoughts were completely clear.

He slammed his hand on the table and exclaimed, "Madun Bridge!"

Seeing everyone looking at him, Xu Qiang said, "According to the unlicensed taxi driver, the suspect got into the car near Madun Bridge. So why was he there?"

He looked at the crowd.

Lin Wanping exclaimed, "Damn, you went to see a prostitute? Then you ran out of money and impulsively decided to do something wicked?"

Xu Qiang nodded subconsciously, then shook his head and said, "It doesn't seem like it. Since he prepared the knife in advance, I think it's more likely that he planned this all along."

At this point, Xu Qiang frowned and pondered for a moment, then said, "Do you think it could be this situation? For example, this person lives near Madun Bridge, and like Li Shu said, he's very repressed in that area."

"You all probably know how ruthless those hair salons in Madunqiao are at recruiting people."

Before it gets dark, they'd sit there and wave to any men who walked by the door, some even trying to pull them inside.

"The suspect lived nearby and probably passed by the hair salon every day, getting irritated like that every day, and then he had no money."

This place isn't cheap; even fifty yuan is rare, it's mostly eighty or a hundred.

For ordinary people, this is not as simple as going out to eat at a restaurant.

"Then, just like Li Shu said, the repression was suppressed and could not be released, so he may have had evil thoughts and set his sights on taxi drivers, after all, drivers have money."

These days, taxi drivers can earn a good income.

Like Nanjiang, if you're diligent and not afraid of hard work, running a hundred or two a day is no problem.

Add to that the change you prepare when you start your trip, and you might be able to steal three or four hundred yuan, which is no small sum.

"If you've robbed someone, you'll have to use the money. You robbed someone on the night of the 12th and killed someone, so you should at least behave yourself for a couple of days and lay low for a while."

"He might not be able to come up with the money until the 15th, to go see a prostitute, since that's what he robbed the money for."

"If we go to Madun Bridge to crack down on prostitution now, we might actually catch him."

"Also, Director Tang, I think we can focus our investigation on the area around Madun Bridge. Based on this analysis, the suspect is very likely living nearby."

Li Shu nodded repeatedly.

Xu Qiang's analysis is exactly what he wanted to say.

This person is very likely in the same situation as Peng Youjie, having repressed their sexuality for too long.

Unable to find release, they harbored evil thoughts.

Therefore, after successfully robbing someone, he would definitely spend the money to satisfy his desires.

The most likely place they'll go is Madun Bridge.

So, if we launch a crackdown on prostitution at this time, we might be able to catch him.

The group began whispering amongst themselves.

After thinking it over, Tang Weidong agreed with Xu Qiang's idea.

However, he was experienced and asked, "But what about the specific methods? You don't know when he will go. Once he mobilizes forces to arrest him, it will alert him, and at least for a period of time, no one will go."

Anyone present who had a few years of work experience and had never been involved in anti-prostitution operations knew that what Tang Weidong said was true.

"Expert Li, do you have any ideas for your proposal?" Lin Wanping asked, turning his head.

He truly hadn't expected that Li Shu's casual remark about studying why bad guys are bad, which seemed like nonsense, would actually be useful and yield results.

Everyone present looked over.

Li Shu noticed that Xu Qiang seemed to be deep in thought, and sensed that he already had a plan in mind.

However, he had his own ideas. He said, "Captain Lin, Director Tang, our goal is to find suspects, not to actually crack down on prostitution. I think we can arrange for more people to count who crosses Madun Bridge. As long as they are men and have those kinds of thoughts, we can count them all and bring them over to have their fingerprints taken."

"If the fingerprints match, it must be him."