1995, Starting as a Criminal Investigation Expert

Waiting for the traffic light to turn green.

Peng Rong asked curiously, "Didn't you already read the on-site investigation report? What else do you need to go see?"

Li Shudao said, "Senior, we haven't been able to find a result from the complete fingerprint comparison, so I was thinking, what about that half fingerprint? Maybe we can study it further. So I want to go to the scene and see why the suspect would leave that fingerprint based on the environment."

The complete fingerprints were collected from the inside of the safe in the finance office.

This half fingerprint was collected in the finance office, inside the trophy of the first prize in the May Day Labor Skills Competition in the High-tech Zone.

Although complete photos were taken at the scene and the trophy is now in the city bureau's evidence room, Li Shu still wants to go back to the scene and see the actual situation.

In particular, let's speculate on what gesture the owner of this half fingerprint used when holding the trophy and leaving their fingerprint.

Understanding this might allow us to deduce the force he applied to his fingers.

This may be helpful for later fingerprint research, attempting to reconstruct fingerprints, and searching for characteristic features.

"That half fingerprint."

Peng Rong said "Oh," and continued driving while twisting the accelerator, "Team Leader Han and Team Leader Zhao have studied it and identified three features, but they felt the identification conditions were too poor, so they gave up."

At this point, he turned to look at Li Shu and changed his mind, saying, "Alright, if you want to see it, I'll take you there. It's on the way anyway."

He guessed what Li Shu was thinking.

I guess they just weren't able to match it and were unwilling to accept it.

After all, they proposed a rapid positioning method, probably hoping to make a name for themselves, but it ended up being a disappointing failure.

Naturally, they set their sights on the remaining half of the fingerprint.

Now I'm thinking of going back to the scene and analyzing it step by step.

Peng Rong could understand this mentality.

When he first joined the company, he was full of energy and always thinking about solving cases and making contributions. He was extremely proactive.

Later, the tedious work wore down his spirit.

Anyway, it's not a big deal. If Li Shu wants to go, then let him go.

Li Shu quickly expressed his gratitude.

Before long, the two arrived at the Tingyang Municipal Public Security Bureau.

I went upstairs straight to the technical squadron.

Guo Xiangyang is here.

Upon hearing that the match was confirmed, his eyes lit up, and he exclaimed with delight, "I knew my left eyelid had been twitching all day! It turns out there's good news!"

As he spoke, he quickly opened the file bag and looked at the appraisal report.

"Another repeat offender."

He took a picture of the documents on file.

This person lives in the Lihu District and had been punished twice before for petty theft.

He called over a subordinate and had someone deliver the documents to the Criminal Investigation Team. He cheerfully picked up a thermos and poured water for the two men, then muttered, "Old Han is all bark and no bite. He kept saying he was busy, but in just a few days, he's already figured it out."

Normally, it would take several days to compare a fingerprint.

The fact that the comparison was completed in just four days only shows that Han Jianjun still treats his own affairs as an important matter.

Peng Rong took the water glass and instinctively said politely, "Captain Guo, it was mainly the case in the High-tech Zone that caused the delay. We only started comparing yesterday, and as soon as we found a match, we rushed to send it over to you."

"yesterday?"

Guo Xiangyang was taken aback.

The comparison only started yesterday, and it matched today?

"That's pretty lucky."

The fact that the match was found so quickly can only be explained by one thing: good luck.

Sometimes you get incredibly lucky and can match a pair of hundreds of photos; it's all unpredictable.

Peng Rong nodded and said that they were lucky.

Thinking that he still had to take Li Shu to the crime scene, Peng Rong didn't chat for long. He took a few sips of his drink and then got up to say goodbye and leave.

Guo Xiangyang escorted the two downstairs.

Back upstairs, a short while later, I received another call from Han Jianjun.

Guo Xiangyang answered the phone with a laugh: "What, you called me specifically to thank me? Why don't you just come yourself? I'll treat you to drinks tonight."

Han Jianjun said, "No, there's something I forgot to tell them."

Then they asked Peng Rong and the other person if they had arrived.

"They've been here, but everyone left a while ago," Guo Xiangyang said.

Han Jianjun exclaimed, "Oh dear," and then said, "It's like this, we have a new guy in our team who's figured out a method for fingerprint comparison. I was thinking of having him go over and teach you guys. It's very simple, you'll learn it in no time. But the method is really useful, it can increase the efficiency of fingerprint comparison several times over."

Each branch office has a need for fingerprint comparison.

Now that a new method has been found that can improve efficiency, Han Jianjun naturally won't keep it to himself and wants to teach it to everyone.

He only made the call after he returned and learned that Zhao Yong had asked Li Shu and another person to deliver the appraisal report to Tingyang.

That way, I won't have to make another trip.

"A new method?"

Guo Xiangyang immediately perked up and hurriedly said, "Old Han, don't try to fool me. Is it true that the efficiency will be several times higher?"

Han Jianjun said, "How could it be fake? Otherwise, how could the fingerprints you sent have been matched so quickly?"

Guo Xiangyang slapped his thigh and complained to Han Jianjun for not saying so earlier.

Everyone's gone now.

Immediately, they asked what the solution was.

The fingerprint database gradually accumulated.

The criminal investigation team, also wanting to save trouble, always sends fingerprints collected from the crime scene here for comparison.

But comparing them is both time-consuming and laborious.

If we follow Han Jianjun's suggestion and double the efficiency, it will save us a lot of trouble.

"Who is it? Peng Rong? This kid's got some skills, I didn't realize he was capable of this," Guo Xiangyang asked again.

He knew that Peng Rong had only joined the municipal bureau a few years ago and was considered a newcomer.

The method was simple, but it couldn't be explained clearly over the phone in a short time, so Han Jianjun simply asked Guo Xiangyang to come over when he was free the next day, and then said, "It's not Peng Rong, it's another one, Li Shu. Didn't you go together? This kid just graduated and was assigned here a few days ago."

"he?"

Guo Xiangyang was startled, and then he remembered Li Shu.

Li Shu didn't say much throughout the whole process, so Guo Xiangyang didn't have a deep impression of him.

Only now do we realize that this so-called new method was actually devised by Li Shu.

And then he remembered that the expert on the report was named Li Shu.

"Wow, that's a real talent!" Guo Xiangyang exclaimed.

Having only been on the job for a few days, I'm already coming up with some amazing new methods.

"Why wasn't this kind of talent assigned to Tingyang?" Guo Xiangyang said again.

The team needs to expand, and he is short-staffed.

Han Jianjun snorted and said, "If we distribute it to you, can you keep it?"

After saying that, he stopped chatting and told Guo Xiangyang not to forget to come to the bureau tomorrow before hanging up the phone.

Guo Xiangyang muttered a couple of sentences about the new method, then, feeling restless, hopped on his motorcycle and headed straight for the Municipal Bureau.

And I can't help but think of what Peng Rong said: that the comparison started yesterday and was completed today.

It seems this wasn't just good luck, but rather the use of Li Shu's new method, which is why the efficiency was so high.

Meanwhile, Peng Rong led Li Shu straight to the crime scene.

This is a foreign-invested enterprise called Jiapa, whose main business is sporting goods.

The factory is located north of the High-tech Zone Management Committee, on Fengxin Road, which is about one kilometer away.

The area is alright.

However, to Li Shu's surprise, when he arrived at the factory and was about to go upstairs to the finance office, someone happened to be coming downstairs and walking out.

It is Lin Wanping.

With his briefcase tucked under his arm, he spotted Li Shu and his companion at a glance.