"Ding!"

"Advanced Mission: According to the matching fingerprint information on the corpse, lock down the suspect in the Qinghe Playground dumping case, and assist the task force in solving the case." At the same time as the fingerprint matching in the computer was successful, Lu Chuan's mind heard the prompt sound of the system task at the same time.

Conference Room No. 1 of the Criminal Investigation Detachment.

"Fingerprints found on the corpse?" Qin Yong was overjoyed with Liu Guodong's report. can leave fingerprints on the corpse, and it is left on the duct tape binding marks at the ankles, in this case, it is likely to be the fingerprints of the murderer.

Sure enough, the reliable one has to be the current survey.

"Lu Chuan found it?" Liu Guodong nodded: "Just now, when Lu Chuan was collecting trace physical evidence for the second corpse, he found this fingerprint. On the projector, it was the fingerprint photo found by Lu Chuan.

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

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

"But Lu Chuan had an impression of those fingerprints, and after seeing the fingerprints on the corpse, he had a sense of familiarity." Qin Yong nodded approvingly, and the trace inspection criminal police identified and analyzed the fingerprints, just like the front-line criminal police catching fugitives.

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

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

secretly took a photo and asked a colleague in the office to check, and sure enough, a theft suspect was on the run. In fact, the two policemen had only seen the photos on the investigation report two weeks ago, and they had a certain sense of familiarity.

As a result, I met unexpectedly, and after checking and confirming, I was arrested. Liu Guodong switched the projection, and what appeared was a set of files: "Although the fingerprints on the match have no identity information, there are relevant materials of the case." "The fingerprints were related to an arson case.

"Three weeks ago, there was an arson case in the area under the jurisdiction of the Huaguang Street police station." On the projector is the specific situation of the case.

"The fire was in a water company's archives."

"Water Utilities' Archives?" Qin Yong carefully looked through the file in his hand and was a little puzzled. This case is actually not a big case.

The information in the archives is the project settlement and final account information of the water company. In terms of importance, it is still a bit of value for water companies, but in terms of economic value, it is a pile of money from selling waste paper.

After reporting the case at that time, the Huaguang Street Police Station sent someone to investigate the current investigation and found gasoline residues. At that time, it was confirmed 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 at that time, the Huaguang Street Police Station investigated for two weeks, but there was no clue." The project archives were deliberately set on fire, and the purpose was certainly not for money.

Of course, this kind of thing has not been encountered by the criminal investigation detachment before. It is not necessarily an outsider who set the fire, but there is also a possibility of one's own people, and it is quite large.

The project data is the basic data of the project audit, and if some people in the water company do something in the project, and then burn the data, it is not impossible to make a death without proof.

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

The attention received was relatively small, and there was basically no police investment. It was the two policemen who went to collect a vague fingerprint, and Huang Qiangmin, the director of the Huaguang Street Police Station, did not come forward.

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 corpses found at the construction site of the Qinghe Amusement Park, and the nature is different.

"Let's go, let's go to the arson site." It is much easier to investigate an arson case than to investigate a serial murder case.

And now, as long as the arson case is detected, the fingerprints related to the naked corpse case will also be found. 4:28 p.m.

At No. 28 Huaguang Street, the water company has a single-family two-story building here. It was the first floor of the building that was set on fire.

Huang Qiangmin was making a report: "At that time, the fire was not big, and after the smoke alarm was triggered, the automatic sprinkler system was activated. "The fire protection facilities in the small building are relatively complete, and there is an automatic sprinkler system in the archives.

"But because the arsonist poured gasoline, the files were basically burned." At the arson site, Lu Chuan has already begun to do the current investigation.

The scene was very chaotic. On the one hand, when a fire breaks out, the sprinkler system is activated, which already destroys the traces left by the arsonist.

On the other hand, someone should have cleaned the scene after the fire. Now, the whole scene is pitch black, and the water stains on the ground have dried up, and it is difficult to find anything big.

"Yang Zi, where were the fingerprints collected at that time?" At that time, the policeman who handled the case to collect fingerprints was now Lu Chuan's college roommate Yang Lin: "On the gasoline barrel." Yang Lin turned on his mobile phone: "At that time, we found a gasoline drum at the scene, and at the bottom of the oil drum, fingerprints were found. This is the last time Yang Lin and Lu Chuan had dinner, everyone chatted, and Lu Chuan casually chatted about some small methods of fingerprint collection.

"I just used what you said last time, the over-the-top fingerprint collection method, how about it, buddy, okay?" Yang Lin was recently at the Huaguang Street Police Station, and he was very open.

Now there is a faint meaning of the full-time investigation of the Huaguang Street Police Station. Since Yang Lin and Lu Chuan often talk on the phone, chat on WeChat, and occasionally talk about some fingerprint collection.

Lu Chuan often told Yang Lin some tips and methods. Although it is not a systematic knowledge, it is sufficient to meet the needs of the general field.

An example of this is Yang Lin's fingerprinting at the arson scene, which is not very clear, but at least not taped.

The fingerprint can be further identified and analyzed.

"Is that gasoline drum still there?" Yang Lin nodded: "At the police station, I will bring it back on the same day." "This is a professional background, and I subconsciously have a rigorous attitude towards the case.

There was nothing left to see at the scene, the footprints on the ground were a mess, and it was not known how many people had come in and out after the arson.

The entire site has been destroyed and has no value. Twenty minutes later, Lu Chuan saw the gasoline barrel from which Yang Lin had his fingerprints taken at the Huaguang Street police station.

It is said to be an oil barrel, but it is actually a blue paint barrel. It's just that it's temporarily filled with gasoline.

"Has this bucket been investigated?" This is the only evidence preserved in the arson case at the moment, and the only thing that the suspect may have left a clue about.