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

Chapter 117 Arson Case

"Ding!"

"Advanced task: According to the matching fingerprint information on the corpse, locate the suspect in the corpse throwing case at Qinghe Playground, and assist the task force in solving the case."

At the same time as the fingerprint matching in the computer was successful, a system task prompt sounded in Lu Chuan's mind at the same time.

Meeting Room No. [-] of the Criminal Investigation Detachment.

"Fingerprints found on the body?"

Qin Yong was overjoyed with what Liu Guodong reported.

Fingerprints can be left on the corpse, and they are left on the tape binding marks on the ankles. In this case, there is a high probability that they are the fingerprints of the murderer.

Sure enough, the reliable ones have to be on-site surveys.

"Lu Chuan discovered it?"

Liu Guodong nodded: "Just now, when Lu Chuan was collecting trace evidence for the second corpse, he discovered this fingerprint."

On the projector is the photo of the fingerprint that Lu Chuan found.

"It's a coincidence. When solving the Song Kun case, Lu Chuan once did a fingerprint identification analysis, and it was all cases sent up from below."

"There were three sets of fingerprints that were not identified successfully at the time, and there were no target objects in the fingerprint library."

"But Lu Chuan has an impression of those fingerprints. After seeing the fingerprints on the corpse, he feels familiar."

Qin Yong nodded approvingly, and the trace inspection criminal police identified and analyzed the fingerprints, just like the first-line criminal police catch fugitives.

The entire Haizhou Public Security Bureau basically arrests suspects due to various accidents every year.

For example, last month, two policemen from the Youhao Road Police Station ate beef noodles in a restaurant after their shifts, and felt familiar to a diner who ate noodles together.

I secretly took photos and asked my colleagues in the office to check. Sure enough, it was a fugitive theft suspect.

In fact, the two policemen only saw the photos on the assisted investigation notice two weeks ago, and they have a certain sense of familiarity.

As a result, I met it by accident. After checking and confirming, I was arrested.

Liu Guodong switched the projection, and what appeared was a set of dossiers: "Although the matched fingerprints have no identity information, they have relevant information about the case."

The fingerprints were related to an arson case.

"Three weeks ago, an arson case occurred in the area under the jurisdiction of the Huaguang Street Police Station."

On the projector is the specific situation of the case.

"What's on fire is an archive of a water company."

"Water company's file database?"

Qin Yong looked carefully at the file in his hand, feeling a little puzzled.

This case is actually not a big one.

The data in the archives are all the project settlement and final settlement data of the water company.

In terms of importance, it is worth a little to the water company, but in terms of economic value, it is a pile of money from selling waste paper.

After reporting the case, the Huaguang Street Police Station sent people to investigate the scene and found gasoline residues.

It was confirmed at that time that someone should have set the fire.

Arson cases, regardless of the value involved, will receive a certain degree of attention.

"After the case was filed, the Huaguang Street Police Station investigated for two weeks, but there was no clue."

The engineering data archive room was deliberately set on fire, and the purpose was definitely not for money.

Of course, this kind of criminal investigation detachment has not encountered before.

It is not necessarily an outsider who set the fire, but the possibility is also quite high.

The project data is the basic data of the project audit. If someone from the water company tampers with the project and then burns the data, it is not impossible to make a death without evidence.

It's just that when this case happened, it was the time when the whole organization was going all out to investigate Song Kun's murder.

The degree of attention received is relatively small, and basically no police force has been invested.

It was two policemen who went to collect a fuzzy fingerprint, but Huang Qiangmin, the director of the Huaguang Street Police Station, didn't show up.

And because the value involved in the case was not great, and the arson did not cause personal injury, the case was dropped.

But now, the fingerprints found in the case are linked to the naked body found at the construction site of Qinghe Amusement Park, and the nature is different.

"Come on, let's go to the scene of the arson."

It is much easier to investigate an arson case than to investigate a serial murder case.

But now, as long as the arson case is solved, the fingerprints related to the naked corpse case will also be found.

28:[-] p.m.

No. 28, Huaguang Street, where the water company has a single two-story building.

It was the first floor of the building that was set on fire.

Huang Qiangmin was making a report: "The fire was not big at the time. After the smoke alarm was triggered, the automatic sprinkler system was activated."

The fire-fighting facilities in the small building are relatively complete, and there is an automatic sprinkler system in the archives room.

"But because the arsonists poured petrol on it, the archives basically burned down."

At the scene of the arson fire, Lu Chuan had already started to conduct site surveys.

The scene was very chaotic.

On the one hand, when a fire breaks out, the sprinkler system is activated, and the traces left by the arsonist have been destroyed.

On the other hand, someone should have cleaned up the scene after the fire.

Now, the whole scene is pitch black, and the water stains on the ground have dried up, so it is difficult to find any major discoveries.

"Yang Zi, where were the fingerprints collected at that time?"

The police officer who collected fingerprints at that time turned out to be Lu Chuan's college roommate Yang Lin: "On the gasoline barrel."

Yang Lin turned on the phone: "We found a gasoline drum at the scene, and fingerprints were found on the bottom of the drum."

This was the last time when Yang Lin and Lu Chuan had dinner, they chatted, and Lu Chuan casually chatted about some small methods of fingerprint collection.

"I just used what you said last time, the method of over-the-top fingerprint collection. How about it, buddy, is it okay?"

Yang Lin was in the Huaguang Street Police Station recently, and he was very busy.

Now there is a hint of a full-time survey by the Huaguang Street Police Station.

Since Yang Lin and Lu Chuan often talked on the phone and chatted on WeChat, they occasionally talked about fingerprint collection.

Lu Chuan often tells Yang Lin some tricks and methods.

Although it is not a systematic knowledge, it is enough to meet the needs of the general scene.

Yang Lin's fingerprint collection at the scene of the arson case is an example. Although it is not very clear, at least it is not attached with tape.

Subsequent identification and analysis of fingerprints can be carried out.

"Is that gasoline can still there?"

Yang Lin nodded: "It's at the police station, I took it back the same day."

This is a professional background, subconsciously has a rigorous attitude towards the case.

There was nothing to see at the scene, the footprints on the ground were in a mess, and it was unknown how many people came in and out after the arson case.

The whole scene has been destroyed and is of no value.

Ten minutes later, Lu Chuan saw the gasoline barrel where Yang Lin took his fingerprints at the Huaguang Street Police Station.

It says it's an oil drum, but it's actually a blue paint drum.

It's just a temporary filling of gasoline.

"Have you investigated the source of this barrel?"

This is the only evidence preserved in the current arson case, and it is also the only thing that the suspect may leave clues.

(End of this chapter)