Fingerprints are like old wine for drunkards, and the head of the club is for old color batches. You won't forget the wine you've tasted, the sheets you've rolled, and the fingerprints you've seen.

For those who have been examined for dry marks, who has not had a backlog of cases in their hands, and who has not had fingerprints that have failed to compare. When encountering a case, fingerprint comparison can't be done for a while, some traces can't wait to be carried in their arms, and when they go to the toilet, others swipe their mobile phones, and they swipe their fingerprints.

Each fingerprint is like an identity identifier and has its own different characteristics. It's like a person's figure, some of the fingerprint papillae are relatively flat, like an airport, and some are more magnificent, like undulating mountain peaks.

Some fingerprint ridges are soft and thin, like willow leaf waists, and some are thick, like buckets. In the eyes of ordinary people, fingerprints are messy thick lines, but in the eyes of trace examination, every fingerprint that is studied and played with has its own life.

In front of the dissecting table, Lu Chuan changed his position and carefully observed the half of the fingerprint extracted from the traces of the deceased's ankle tape.

"Discovery?" Shen Yan was also very happy that Lu Chuan could find this fingerprint, and the forensic doctor didn't really study this when he did an autopsy.

Whether it's forensic pathology or forensic anthropology, it's either a study of how a body died or who it is, but it all starts with the body itself.

Fingerprints on corpses, to be honest, this is a bit of a composite talent. Ordinary forensic doctors will not do it, and ordinary trace examinations will not do it.

"I feel like this fingerprint is somewhat familiar...... But I can't remember where I've seen it, so I'll go back to the office and take a look in the system when I'm done. "The fingerprints made by Lu Chuan have been compared in the system, and they are recorded whether they succeed or fail.

As long as these fingerprints are called up and compared, they should be able to be found.

"Let's do trace evidence collection first, and then send it to the provincial department after we finish it." This time, the examination of trace physical evidence progressed relatively quickly, and the results found were relatively similar to the previous corpse.

In addition to physical evidence collected from hidden parts such as fingernails and mouths, similar hairs were found on the second corpse.

"It's supposed to be an animal hair, and it's more likely to be a dog or a cat, and it certainly doesn't have to be a dog or a cat." Lu Chuan agreed with Shen Yan's judgment: "The two corpses had this kind of hair in many parts, indicating that the deceased should have been able to touch this kind of hair often before his death. ”

"Is it possible that something left on the body that wrapped it when the murderer threw it?"

"There is also this possibility, the murderer can't throw the body so naked, it should be covered with something, but the specific situation depends on the test results." There are obviously many possibilities for speculation about hair.

But either way, you need to wait for the test results to come in.

"You rest first, just finished dissecting the corpse, and help me get trace physical evidence for testing, I'll hand over the things first, and then look at the fingerprints." On the side of the dissecting table, the two tossed back and forth several times, and Shen Yan's physical exertion was indeed very large.

Fine beads of sweat had soaked from his forehead, sticking to a few strands of hair.

"Okay, then you go and get busy, I'll go back to the office and rest for a while." The two separated, and Lu Chuan quickly returned to the field survey office.

"Master, this is the second trace of physical evidence collected from a corpse." handed over the physical evidence box to Liu Guodong, Lu Chuan immediately sat down in front of the computer and crackled on the keyboard.

Liu Guodong, who was just about to send physical evidence, looked at Lu Chuan, who was busy: "Let's rest first, this case is not making much progress now, and it is estimated that it will be a protracted battle again." Lu Chuan shook his head: "No, Master, when I was just collecting trace physical evidence, I found that there were also glue marks left on the wrists and ankles of this corpse after being tied with tape. Liu Guodong nodded, the gum on these traces has been collected, and after the analysis, it can be determined what tape the murderer used, which has some value.

"In addition to these, half a fingerprint was also found on the glue mark on the left ankle of the corpse this time." Well?

"Half a fingerprint?" Lu Chuan's words surprised Liu Guodong a lot, fingerprints were found on the corpse, it is very likely that they were left by the murderer.

Yang Sen and Lao Bai also gathered around: "Fingerprints were found on the corpse? ”

"This is a big discovery, it is very likely that the murderer left it." Lu Chuan operated the computer and retrieved the fingerprints he had seen, and spoke: "The fingerprints were found on the tape band on the inside of the left ankle of the corpse. ”

"It's very likely that the killer left it when he unwrapped the tape."

And this half of the fingerprint makes me feel a little familiar, and I always feel like I've seen it somewhere...... "Bang!" The sound of Lu Chuan tapping on the keyboard stopped, and the screen displayed the fingerprint identification and analysis records that Lu Chuan had done half a month ago.

A slightly distorted, but highly sharp, fingerprint appears on the screen.

"This is it!" Half a month ago, when investigating the murder of Song Kun, Lu Chuan was busy and did an appraisal and analysis of the fingerprints submitted by the police station and the criminal police brigade at that time.

At that time, there were a total of 12 groups of fingerprints, nine groups were successfully identified, and three groups were successfully identified, because there was no matching object in the system, and the identification was not successful.

After that, the matter of these three sets of fingerprints was put down, but Lu Chuan had carefully processed these fingerprints after all.

It's not been long since the time passed, so I'm quite impressed.

"This is it!" Lu Chuan pointed to one of the three groups of fingerprints that had not been successfully identified at the beginning: "This is the fingerprint!" ”

"Match it and see if it works!" Liu Guodong's tone was very excited, this is definitely the key clue.

Although the fingerprint itself was not successfully compared, the case involved in the fingerprint could be called up.

When the time comes, you may find something new. While Liu Guodong was speaking, Lu Chuan had already preprocessed the fingerprints collected on the corpse.

It's one thing to look familiar with it yourself, and it's another thing to put it into the system and compare it. There are only half of the fingerprints on the corpse, and there are more ridge line segments, in fact, the identification and analysis of this fingerprint is still very difficult.

At least, with the strength of Liu Guodong, Yang Sen and Lao Bai, it is estimated that it will not be possible. But in front of Lu Chuan's advanced fingerprint identification and analysis skills, this somewhat blurry half of the fingerprint is like a dancer without clothes.

Naked in front of his eyes, without the slightest secret. In just ten minutes, the feature points were marked and the relevant data was calculated.

Bite! The system immediately emitted a familiar sound of successful perfect matching.

"It's done!"

"It's really done!" Yang Sen and Lao Bai shouted excitedly. Liu Guodong was still holding the trace physical evidence box handed over to him by Lu Chuan at this moment, looking at the comparison success report on the computer screen, and his mouth cracked: "I'll go and report the good news to the Qin team, Xiao Lu, you have made meritorious service again this time!" ”