How much is a human life worth?

The answer given by Li Bing was fifty yuan.

In the interrogation room, in the face of ironclad evidence, Li Bing has completely collapsed.

"We agreed, give her fifty dollars, she has to ask for eighty...... I...... I didn't mean to kill her...... Not intentionally ......"

Ren Qiang has been a police officer for more than 20 years, and he has interrogated more prisoners than he has ever seen women.

Murderers, and it is not one or two people who are interrogated.

However, like Li Bing, he is really the first.

Five hours ago, Huang Lan's clothes and a large amount of blood were found in the No. 3 air-raid shelter in Jiguan Mountain.

The scene of the first murder of Huang Lan was confirmed.

Lu Chuan immediately investigated the scene and found a large number of fingerprints, footprints, and murder weapons.

After comparison, Li Bing was determined to be the murderer.

What shocked the investigators was Li Bing's motive for killing.

Huang Lan went out every night and came back in the middle of the night, and there was indeed something going on.

According to Li Bing's confession, on his way home on the evening of 19 June, when he passed by Tongguan Road, he saw Huang Lan at the fork in Jiguan Mountain on Tongguan Road.

"It's only eighty yuan in the store, and it's fifty yuan outside......

Huang Lan did not do business in a house with a small red light, but solicited it on Tongguan Road herself.

As for the location, it's in the woods of Cockscomb Mountain.

However, the two had a dispute over the price.

Li Bing used the switchblade he carried with him to kill Huang Lan.

"Tell me about the process of disposing of corpses and bones."

"After I killed her, I left her body in the bomb shelter."

"I'm afraid that someone will find out, so I didn't dispose of the body at first, but just went over every few days to take a look."

"Then I found that the body had begun to decompose, and when I went back half a month ago, I found that only bones remained."

"I was afraid that the bones would be found in the future, so I dismantled the skeleton in the bomb shelter, and then took a little bit at a time to the feed factory, mixed it in the big bones and cut it, some of them were crushed into bone meal, and some of them were ...... Sold to a hot pot restaurant......"

The entire process of Li Bing's crime has now closed the loop.

After the interrogation, Li Bing identified the scene, and the case was solved.

"Ding!"

"Advanced mission completed: the host found the scene of the first crime of the skeleton case, completed the collection of criminal evidence, and assisted the skeleton task force to solve the case."

"Quest Reward: Beginner Fingerprint Analysis Skill Card."

"Does the host claim the reward?"

"Pick!"

Fingerprint identification and analysis is the most commonly used evidence analysis method in criminal investigation methods.

Regarding the identification and analysis of fingerprints, it originated in foreign countries and systematically formed theoretical knowledge.

But in ancient times, regarding the application of fingerprints, it had already begun.

The drawing in the signature is the fingerprint rubbing, which is used for identity marking.

Fingerprints have been widely used as an effective identification tool for hundreds of thousands of years.

The reason why fingerprints have become a tool for identity identification is based on two principles: the shape of each person's fingerprint remains unchanged for life, and everyone's fingerprint is different.

Just like there are no two identical anthuriums in the world, some are pink, some are brown, some are delicate, some are dry and waterless, some have been touched by many people, and some are clean and lovely.

When Lu Chuan was at the Public Security University, he learned relevant knowledge, and as a more important skill in the field survey major, Lu Chuan was able to conduct some simple fingerprint identification analysis when he graduated.

However, compared with the primary fingerprint identification and analysis skills rewarded by the system, the identification knowledge that Lu Chuan has learned is a little pitiful.

After years of development, fingerprint identification has formed a standard workflow in criminal investigation.

In the relevant work specifications, fingerprint identification can be divided into several processes: preparatory inspection, separate inspection, comparative inspection and comprehensive evaluation.

The purpose of the same determination is achieved by comparing the final appraisals, so as to provide evidence for criminal proceedings.

The lines on the fingerprint are convex and uneven, and the lines have a starting point, an end point, and an intersection.

These feature points are the important features of fingerprint comparison.

In reality, it is difficult to collect fingerprints very comprehensively, that is, it is difficult to completely compare all the lines in fingerprints for fingerprint comparison.

Therefore, the current fingerprint comparison methods can be divided into two categories.

The technical term is called similarity and difference assessment, and in layman's terms, it is to compare whether the fingerprints are not the same or the same.

This requires the determination of fingerprint alignment features, such as the intersection of two fingerprint lines.

The two fingerprints are compared at the intersection of the same position, and if there is a difference, there is no need to compare other feature points.

Because of this difference, it is enough to determine that the two fingerprints are not the fingerprints of the same person.

Of course, there is a lot of jargon in fingerprint comparison.

For example, the convex part of the fingerprint pattern is called the crest, and the concave part is called the yu.

The crest and crest extend intersecting, creating endpoints, bifurcations, divergences, outliers, rings, and striations.

The identification and analysis of fingerprints is to analyze the similarities and differences of fingerprints through these feature points.

Complicated knowledge and some special identification methods made Lu Chuan a little dizzy.

However, with the intermediate fingerprint collection skills, coupled with the primary fingerprint identification and analysis, Lu Chuan's ability in fingerprints has been greatly improved.

Recently, the atmosphere of the criminal investigation detachment has been more relaxed.

Although it took more than a week to solve the skeleton case, the final result was very satisfactory.

The murder case, as long as it is solved, then everyone is a good comrade.

The next week was mainly to fix the evidence and organize the materials.

Recently, after the baptism of two murders in a short period of time, everyone has become more and more familiar with this set of processes.

But familiarity is familiarity, and no one dares to make mistakes in the sorting out of the materials of the murder case.

Lu Chuan's life is somewhat moisturized.

At the end of September, it will be the eleventh long holiday.

"Lao Yang, where is Eleven going to play?"

Lao Bai was already planning the eleventh game with the enamel jar.

"Where can I go, my child will take the college entrance examination next year, and I will accompany me to do the questions."

Yang Sen's life is a bit hard now, and he revolves around the child every day.

However, in his words, in another eight months, he will be exhausted and completely freed.

"Where is Lu Eleven going?"

Lu Chuan, who has nothing to do, is moving the anthurium out and basking in the sun, but he can't see the light and the leaves are not green enough: "There is no arrangement, I may have to invite Forensic Doctor Shen to have a meal." ”

The meal with Shen Yan began with human bone hot pot soup.

Now that the case is almost over, the meal has to be made up.

Lao Bai nodded: "Xiao Shen is good, his parents both work in the city bureau, and they are also leaders, so they can be regarded as a police family." ”

Lao Bai was a little envious of this, because his son did not choose the police academy in the college entrance examination that year.

However, sometimes Lao Bai is also a little lucky, fortunately his son did not work as a policeman.

After all, police officers are at higher risk than most industries.

At a time like Lao Bai, he is definitely a healthy policeman who raises the average age of the police.

Bang.

While the men were talking, the office door was opened.