Diary of a Criminal Investigator

For a fleeting moment, Wang Kai could even distinctly feel his adrenaline surging.

His heart was racing, and his blood rushed to his head!

Another case cracked?

Wang Kai's phone chimed with a notification about the fingerprint battle's results.

It was automatically forwarded by the fingerprint matching system, so as soon as Lu Chuan matched the case from Culture Park seven years ago, Wang Kai headed straight to the dedicated fingerprint meeting room.

Checking the time, it was half past one in the afternoon, and Wang Kai had just caught the suspect in the previous case here, and Lu Chuan had already matched another homicide?!

A certain plant.

If Wang Kai hadn't been aware of his identity, with two crime suspects sitting behind him, he would've surely blurted it out.

Four years ago, the robbery in the High-speed Rail New District, Wang Kai had paid attention to it several times.

Or rather, there wasn't a single cold case of homicide in Haizhou City Public Security Bureau that Wang Kai didn't pay attention to.

Every year, Wang Kai would organize the elite from various Criminal Investigation Teams to reevaluate these cases.

Additionally, each major Criminal Investigation Team had dedicated personnel keeping an eye on these cases on a daily basis.

Aside from current cases, investigating past unresolved cases is part of a detective's routine work.

Compared to current cases, the probability of solving old cold cases is actually not high.

Or rather, it's quite low.

After all, no matter which era a homicide occurred in, all available resources would have been exhausted at that time to investigate it.

And becoming a cold case indicates that most resources from back then didn't solve it, and it's impossible to utilize all resources again to investigate it later.

Therefore, under limited resources, to solve a cold case requires luck, or it depends on technology.

Such as fingerprint analysis, footprint identification and analysis, bloodstain pattern analysis, and so on.

And today, Lu Chuan gave Wang Kai a huge surprise.

Solving two cold cases in one day!

Lu Chuan is on track for another merit award of second class, isn't he!

In the car, Wang Kai called the captain of the Criminal Investigation Team in the High-speed Rail New District.

"Immediately contact the head of the fingerprint battle at the municipal bureau, the home invasion robbery case in your jurisdiction four years ago... has been solved!"

Fingerprint Battle Meeting Room.

Sun Hao, Gao Wenxiang, Sun Miao, and others had already surrounded Lu Chuan.

Two cold cases' fingerprint matches succeeded consecutively!

If it were only one, it could be explained by luck, but two? Who dares to call it luck?

Moreover, everyone had just witnessed how Lu Chuan identified the fingerprints.

The screen flooded with streams of data, rapidly switching images, and shortcut keys that nobody understood.

This proves one thing, Lu Chuan is indeed amazing!

In Haizhou City Public Security Bureau, most of the technical workload is at the Technical Appraisal Center.

However, when it comes to capability and case-solving, you have to count on the Crime Scene Investigation of the Criminal Investigation Team.

Liu Guodong is definitely an ace.

And now, there's Lu Chuan.

"Teacher Lu, take a look at our case in Tianshan District, an eight-year-old cold case that's also in the database!"

"Teacher Lu, our case in the Water District, ten years ago, a family of four was killed, both kindergarten-age children, the vile murderer, Teacher Lu, please look at ours first!"

"Teacher Lu, our county, our county also has one..."

The number of homicide cases in this battle, or that have entered the fingerprint battle in recent years, has always been thirteen.

Although everyone hadn't successfully matched any, they were all too familiar with these cases.

In Haizhou City's seven districts and one county, each place has unresolved homicides.

Few have one case, some have up to three.

Seeing how impressive Lu Chuan is, everyone's mode of address changed.

And it felt right calling him that.

After all, he is originally from the team, and the district and county Criminal Investigation Teams are subordinated, so addressing him that way isn't a loss.

Moreover, Lu Chuan's fingerprint identification and analysis... it's truly impressive.

"Everyone, don't rush, take a break. Our battle this time is set to last a week.".

Lu Chuan didn't expect everyone to be so enthusiastic.

Before coming, Yang Sen and Old Bai had reminded him not to underestimate these people, even though they are from lower Criminal Investigation Teams.

But in their domains, they have status and strength.

Among them, most have capabilities similar to Yang Sen and Old Bai, and some, like Sun Hao and others, might even surpass them.

Just a notch below Liu Guodong.

Lu Chuan is young, new to the police, has a limited network, so he needs to learn more.

Getting to know these people will make handling cases in the future much smoother when faces are familiar.

Especially, the lower Criminal Investigation Teams have good relations with various industries, giving him more options for unforeseen situations in the future.

However, Lu Chuan now feels these people are quite easy to get along with.

Look at that, they're all calling him Teacher Lu.

In fact, what is a network—a bunch of known people.

Liu Guodong and others have such good connections not because of great social skills but because most people of the same age hold high positions.

As years pass, naturally, they get to know each other.

Today you ask me for a favor, tomorrow I ask you for one.

That's how connections and networks accumulate.

After all, Lu Chuan is new to the police, only half a year in, people of his batch are still mopping floors and wiping tables.

"Please, don't call me Teacher, just call me Lu or Lu Chuan."

These words made everyone feel even more at ease.

"Come on, let's go have a smoke, take a break, and it's almost lunchtime. We'll get back to it in the afternoon."

Since Lu Chuan said so, of course, no one opposed.

A whole group, eighteen smokers, went out en masse.

The municipal bureau office building has strict rules, no smoking in the office area.

Luckily, leadership emphasizes a people-centered approach.

There's an outdoor glass house built specially for smoking.

Actually, only those attending meetings or, like Lu Chuan and his colleagues, working in concentration use it.

In reality, those working in the municipal bureau don't usually come out.

Maybe they don't smoke...

"Come, smoke this, smoke this."

A pack of Chunghwa cigarettes, Lu Chuan went around distributing.

He had to; everyone gathered around him, using the chance of smoking to talk about their cases.

Lu Chuan couldn't just smoke a Chunghwa while others smoked Honghe.

Once the Chunghwa cigarettes came out, the atmosphere instantly became livelier.

"Teacher Lu, your lifestyle makes us envious."

Gao Wenxiang sniffed the cigarette with closed eyes: "Teacher Lu, does the team pay well?"

Gao Wenxiang had also changed his address for Lu Chuan.

"No, it's my dad who smokes, I just follow him."

Your dad...

Smoking Chunghwa, though not knowing Lu Chuan's Lu is from Qiangsheng Group, everyone understood Lu Chuan comes from a well-off family.

Times of leisure pass quickly.

After two cigarettes, it was lunchtime.

During the fingerprint battle, Lu Chuan and his colleagues were dining in the cafeteria with the leaders of the city bureau.

This morning, they didn't have such privilege; they were eating breakfast at the hotel.

Just now, they heard that Director Wang specially instructed the cafeteria, setting aside two tables for those attending the fingerprint battle.

The vegetables stir-fried in small pots.

The director in charge of logistics personally accompanied them.

"Director Wang is still handling a case and asked me to entertain everyone."

After speaking, he looked at Lu Chuan: "Teacher Lu, do you find this food to your taste?"