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

Chapter 142 Second Class Merit

"Any other clues?"

Wang Song shook his head: "Basically there are none. The crime scene is in the deep mountains and old forests. The corpse has been eaten by wild beasts, and there is no trace left."

"If it weren't for a donkey friend who went into the mountain and accidentally found the body, no one would be able to find it."

Compared with death, disappearance is the most difficult case to deal with.

Dead, at least know that people are dead.

Missing, no one knows what happened to the person.

The fingerprints extracted from Zheng Bin's field dagger were not just blurred.

After Lu Chuan zoomed in on the fingerprint, it was obvious that it was a composite fingerprint after superimposing multiple layers of fingerprints.

Moreover, there are bloodstains on it, and there are incomplete scratches that are vaguely discernible.

"After using the dagger, the murderer should have wiped the fingerprints on the handle of the knife with something."

Wang Song nodded: "Well, the experts from the provincial department said the same thing."

"But when it was processed again, it was not particularly careful, and some residual scratches and fingerprints were left."

Such fingerprints are slippery in Mandarin.

Not only that, after the murderer wiped the handle of the knife, it should have been covered with a layer of other fingerprints.

Needless to say, the murderer must have handed the handle of the knife back to Zheng Binshi.

As expected to be able to identify and analyze the fingerprints of the two murder cases successfully, Wang Song nodded while listening: "That's right, what the experts from the provincial department said."

Lu Chuan nodded, and he could see these details when Lu Chuan mastered the intermediate fingerprint identification and analysis skills.

However, if you want to conduct identification analysis on fingerprints at that time, you will be beyond your capabilities.

"Brother Wang, wait a minute, it may take a little longer on my side."

Obviously, the processing of this fingerprint cannot be completed in a short while.

This is also the most difficult fingerprint that Lu Chuan has encountered so far.

Lu Chuan can't guarantee whether the appraisal will be successful in the end.

The first step is to digitize the fingerprint and complete the data layering through two-dimensional transformation.

Compared with the stacking of fingerprint lines seen by the naked eye, after the data is layered, the upper and lower layer data of the fingerprint image will be easier to process.

On this side, it is easy to say, but it is troublesome to deal with.

Lu Chuan had to manually screen the data, and it took more than an hour to complete this step.

In the meeting room, the silence was a little scary.

Except for the sound of Lu Chuan typing on the keyboard, no one else was out of breath.

Although nine years have passed in the case of Zheng Bin's murder, there has been no conclusion.

Was it because of the case in Zheng Bin's hands that he was killed, or because he encountered something in the mountains and was killed.

And because the person died during the vacation period, it is not even counted as work-related death.

Not to mention sacrifices and the like.

Regardless of the identity of the police, this is a simple murder case with no clues.

Therefore, even in those years, the investigation and handling of the case was not as strong as Song Kun's murder.

It's just that Zheng Bin's wife who was just pregnant was suffering.

And there is no son born, no father.

In recent years, Zheng Bin's wife has not remarried, and the Water District Criminal Police Brigade has arranged for an auxiliary police officer to do internal work, which can be regarded as helping orphans and widows in disguise.

After the fingerprints are layered, it is the highlight.

Since the fingerprints were scratched and wiped by the murderer, there were no fingerprint lines for reference at the beginning and end of the front and rear ends.

What Lu Chuan needs to do is to restore the multiple friction lines into the shape of fingerprints.

This afternoon, no one disturbed Lu Chuan.

When Gao Wenxiang and others were smoking, the topic also revolved around Lu Chuan's identification and analysis of fingerprints: "Old Sun, you are the strongest in this wave of ours, do you think there is something to be done?"

Sun Hao let out a puff of smoke: "I also saw Zheng Bin's case back then."

"As far as that fingerprint, let alone me, the experts from the provincial department have studied it for more than ten days, but it's not done yet."

"Lu Chuan..."

Others also sighed.

Obviously, although everyone knows that Lu Chuan is powerful, he is at least a lot stronger than everyone else. It is of course powerful to be able to beat two homicide cases that have entered the fingerprint battle between the provincial government and the department.

This shows that Lu Chuan has reached the level of top experts from the provincial department in terms of fingerprint identification and analysis.

However, even so, the experts from the provincial department did not get the fingerprint.

When everyone was smoking, Lu Chuan's fingerprint preprocessing also entered the most critical time.

Wang Song has been sitting next to Lu Chuan, watching with his own eyes how Lu Chuan took out the fingerprints bit by bit.

Regarding Lu Chuan's operation, Wang Song basically couldn't understand it.

If I have to describe it, I can only be ignorant.

"Finally almost!"

28:[-] p.m.

After four hours of fighting, this fuzzy fingerprint finally turned into a third of the fingerprints with clear lines and normal lines in Lu Chuan's hands.

Next, just mark the feature points, calculate some data, and compare them in the system.

Untold hardships, the last long-winded.

"Can it be done?"

Wang Song looked even more nervous than Lu Chuan, his forehead was covered with fine beads of sweat.

Lu Chuan smiled wryly: "This fingerprint is too severely damaged, and the degree of force deformation makes it impossible to see the original fingerprint."

"I used the method of probability analysis to find out the possibility of the most likely fingerprint extension. As for whether it will be successful...no one can say for sure."

"Put it into the system and run away, let's smoke a cigarette."

Wang Song watched Lu Chuan drag the fingerprint into the system comparison interface, then got up and went to the smoking room outside the building with Lu Chuan.

At 04:30, it was already dark.

However, none of the criminal police who participated in the fingerprint battle left. They will all wait for the results of Lu Chuan's identification and analysis.

"Finished?"

In the smoking room, everyone was there. Gao Wenxiang saw Lu Chuan and Wang Song coming out, so he asked first.

"Running in the system, smoking a cigarette."

In fact, everyone really hoped that Lu Chuan would come out to smoke.

After all, the taste of Zhonghua is indeed much better than Hongmei.

Lu Chuan diffused cigarettes for everyone as usual, and lit one himself.

Although Lu Chuan has no addiction to cigarettes, as Lu Chuan's father said, cigarettes are the best social props among men.

With this, there is a common thread.

"What's going on in the Wang Bureau?"

In the afternoon, Lu Chuan was busy identifying and analyzing fingerprints, and didn't bother to inquire about the two cases in the morning.

Asked casually.

"Haha, we were talking about this just now."

Sun Miao leaned over: "Ju Wang just came back, and the two cases you identified and analyzed in the morning have been caught."

"I heard that there was no interrogation. On the way back from the prison, everything was left behind."

Gao Wenxiang probably knew Lu Chuan better than others because he was sitting next to Lu Chuan in the morning: "I just heard that Director Song has spoken. This fingerprint battle is over, and you will definitely get a second-class merit!"

Second class work!
Hearing this, all the participants in the battle had different expressions.

Who doesn't want to do meritorious service.

Not only honor, but the key is money.

However, it is not something ordinary people can do to settle two homicide cases at once.

As far as the record of the Haizhou Public Security Bureau's fingerprint battle is concerned, not to mention the next six days, there are only two homicide cases, even if it is placed in the provincial department, that is a major victory.

As for Lu Chuan, who solved the murder case with his own strength, giving a second-class merit is not considered high.

Of course, first-class work is estimated to be unlikely.

Unless Lu Chuan solves half of the thirteen murder cases, that's about the same.

Chatting and chatting, Wang Song took two strong puffs of Zhonghua, which had almost burned to the butt of the cigarette, and wiped out the cigarette butt in the column ashtray at hand: "You guys chat first, I'll go back and see the comparison results."

(End of this chapter)