[0364 Using fingerprint technology in Daming]

What Wei Bao is going to take is a fingerprint!

Whether people in this era can understand fingerprints as evidence or not, Wei Bao doesn't care, anyway, he asks for a certainty.

Just now, Zhao Kehu had obviously abandoned his wife who had violated Zhao Laosi.

But he didn't admit that he killed Zhao Laosi and Zhao Laosi's son, which made Wei Bao's heart a little empty, and until this moment, he couldn't be sure whether the real murderer was really Zhao Kehu.

Wei Bao wants to give himself peace of mind, and the one he finds out must be the real murderer, and he can't just wronged people.

In fact, Wei Bao had already thought of extracting fingerprints before, but he didn't know if it would be successful.

There are plastic bags on warships, and several methods can be found to extract fingerprints, such as the Ha gas observation method, if it is a smooth surface, Ha gas observation; The naked eye observation method is observed with the help of a certain light and angle. Magnifying glass observation method, with the help of a magnifying glass, observe under a certain light and angle.

These Wei Bao have common sense.

For example, the ultraviolet observation method uses the characteristics of ultraviolet rays to observe.

There's no way around it, there's no tool for that.

Wei Bao believes that for potential handprint patterns that are difficult to find with the naked eye, it is necessary to use physical and chemical methods to find and extract fingerprints.

He can probably give it a try, but after more than a year, Wei Bao is not sure whether he can extract a valid fingerprint.

According to his previous speculation, Wei Bao felt that Zhao Kehu had slept with Zhao's fourth daughter-in-law, and people were willing to continue to work at Zhao Kehu's house, and they had obviously made friends with Zhao Kehu!

Maybe Zhao Kehu was bumped by Zhao Laosi when he belched with Zhao Laosi's daughter-in-law one day, Zhao Kehu was afraid of the incident, so he wanted to buy Zhao Laosi, who knew that Zhao Laosi ate the scales and had an iron heart, that is, to make it public, to teach Zhao Kehu to be ruined.

Zhao Kehu was scared, so he first managed to kidnap Zhao Laosi's daughter-in-law, and then killed Zhao Laosi and his son in a fit of rage, so that the family disappeared here.

With Zhao Kehu's local power, it is easy to do.

What Wei Bao thought was that if Zhao Laosi wanted to break the adultery, it would definitely not be in Zhao Kehu's house, Zhao Kehu was a wealthy compound, and men couldn't enter the inner courtyard at all.

Then there is only one possibility, it is very likely that it was at Zhao Laosi's house, when Zhao Kehu and Zhao Laosi's daughter-in-law were belching, they were broken by Zhao Laosi!

Since it is in Zhao Laosi's house, it will definitely leave fingerprints, and he is dignified, what are you going to do in someone's small thatched house? This can be regarded as a very favorable circumstantial evidence!

Wei Bao has lost hope of finding the murder weapon, more than a year has passed, and the ghost knows what kind of killing tool the murderer used in the first place?

Hammers, stones, it's all possible, where to throw them? Or did you take it home?

According to the analysis of Luo Guozhong and Luo Guoxiao, two Jinyi guards under Li Chengnei who are very experienced in handling cases, it is very likely that it is a stone.

If it was a stone, maybe the murderer would have thrown it away, after all, there was no fingerprint extraction and identification technology in this era, and no one would be afraid to leave the murder weapon.

Then there is no way, after more than a year, where can I extract fingerprints? It's impossible to even tell which stone is the murder weapon.

Therefore, Wei Bao thought of Zhao Laosi's family.

Zhao Laosi's house, Wei Bao has already been to it, and the furnishings in the house are very simple, just like the original situation of his house.

A simple plank bed, followed by a slightly larger log pier that acts as a table, and a few smaller wooden piers that act as a bench.

Such a simple condition, if you want to do belching, you can only do it in bed, Wei Bao thought, the ancient people have not been open to the stove, right?

Besides, they are all earthen stoves, dirty, and it is estimated that after finishing one, they can't be washed for half a day when they go home.

A group of Sui Hu and Wang Qiuya didn't know what Wei Bao was going to do.

I saw Childe take out a pencil, a pencil sharpener, a pair of scissors, and a clean, unused brush.

Wei Bao first used a pencil sharpener to cut out a small pile of pencil ends, and replaced the fingerprint powder with these delicate graphite powders, which can have the same effect.

Then put on the kind of medical disposable gloves that Wang Qiuya had seen, sprinkle some graphite powder evenly, and then gently brush it with a brush.

Wei Bao did it very carefully, and then said to Sui Hu: "You do as I do, brush the exposed wooden part of this bed, and don't touch it with your hands." ”

Wei Bao said this because there was still a little rag sheet on the plank bed, and then the thatched part, but in fact there was not much exposed, only a little bit of the edge of the bed was exposed.

"Childe, what is this for?" Wang Qiuya couldn't help but ask.

"Fingerprints! I'm going to see if there's anyone's fingerprints here. The fingerprint is the handprint that presses the handprint, you know, everyone's handprint is different and unique, people can lie, fingerprints don't lie. Wei Bao explained.

Wang Qiuya sighed, and immediately understood, "Childe wants to find Zhao Kehu's handprint on this bed?" If Zhao Laosi had his handprints in his house, he would have no way to defend himself, let alone in bed? Isn't it? ”

Wei Bao nodded: "Yes! ”

"If there is really such a thing, if you can really extract the handprint, it will be simple, we have the original copy of the handprint signed by the shareholders when the Tiandi firm sales company was established, didn't the son say that the suspects should be rich people? As long as you match the handprint, you can immediately know who the murderer is, and see whose handprint will be on this bed. Wang Qiuya said happily.

Wei Bao nodded and didn't speak, because he didn't know if he could extract it successfully, it was only experimental.

If you are very sure, Wei Bao will take this step at the beginning, and you don't have to ask this and that.

In this era, the bed is a very private thing, even if you go to a poor person who has no place to sit on the ground, you can't go to someone's bed, let alone a woman's house.

Unless it's the home of an old bachelor like Wei Bao and Luo Sanzi and Liu Chunshi, then it's another story.

"However, will Zhao Kehu and Zhao Laosi's daughter-in-law be so crazy? Dare to be in the bed of Zhao Laosi's house? Wang Qiuya asked suspiciously.

Wei Bao didn't say anything, everything was just his conjecture.

The common method of physical extraction of fingerprints is suitable for fingerprints left on the surface of non-absorbent items such as metal, plastic, glass, and tiles.

In the powder method, choose a powder with a large color contrast, sprinkle it and extract the complete fingerprint.

In the magnetic powder method, fine iron powder particles are used as a brush, and the magnet is used as a brush to brush back and forth to show fingerprints.

Common chemical methods are applied to the surface of absorbent items such as paper, cards, leather, wood, etc.

Iodine fumigation – that is, the use of iodine crystals to heat up to produce vapor, which reacts with the grease of the fingerprint residue to produce yellow-brown fingerprints, which must be photographed or chemically fixed immediately.

Ninghaidelin method - spraying the reagent on the sample, after reacting with the amino acids of the body's secretions, it will show a purple fingerprint.

Silver nitrate method – When the silver nitrate solution reacts with sodium ammonia in the latent fingerprint, it produces a black fingerprint in sunlight.

Fluorescent reagent method – Fluorescent ammonia and phthalate react almost immediately with proteins or amino acids in fingerprint residues to produce highly fluorescent fingerprints, which can be used on the surface of colored items.

In addition to the fluorescent reagent method, Wei Bao can try almost everything, and he chooses the simplest one, if this is possible, then there is no need to experiment with other more complex methods.

Under Wei Bao's instructions, the followers began to pick up the brush, brushing in one direction, and the fingerprints gradually appeared.

Wei Bao was overjoyed, squatting on the ground to watch, although it was a big night, just with the help of the light of the kerosene lamp, it was definitely not as good as the daytime light, but he could still faintly see the fingerprints on it, which was clear.

Wei Bao secretly thought, this is probably thanks to the fact that there are no soap and hand sanitizer in this era, and the grease on everyone's hands is quite heavy, otherwise after more than a year, where are there such obvious traces?

"Childe, there really is, I've seen it all. That's a wonderful way to do it. Wang Qiuya said happily.

Wei Bao snorted and stood back, so that the entourage could finish safely.

"But it's all overlapping, can you tell the difference?" Wang Qiuya was still squatting on the ground and watching.

"Yes, as long as the extraction is clear, it can be done one by one. Just take your time. Wei Bao affirmed.

After more than half an hour, Wei Bao took out the scotch tape and distributed it to a few followers, asking them to print the fingerprints on the scotch tape.

Use a small piece of transparent adhesive tape to press firmly on each fingerprint, gently peel it up, and then stick it on a piece of white paper.

The fingerprint is extracted.

A small bed actually extracted the fingerprints of more than 20 pieces of paper.

Wei Bao secretly thought, if there is a modern computer comparison, it is almost the same, purely with the naked eye, I don't know how long I will have to watch it? I couldn't help but look outside with some anxiety, and looked at the sky in the distance, as if the dawn was about to be broken by the light.

Being reborn again makes Wei Bao feel that time is precious!

Playing football, playing basketball, and having fun all day long, that is to kill time and relax, if you can smoothly obtain local governance authority, Wei Bao will work harder.

"Childe, it's done." Say to Wei Bao.

Wei Bao said to Wang Qiuya and his entourage: "Go back and compare immediately!" See if the handprints on this and the suspects' handprints are the same! ”

Wang Qiuya and the entourage agreed, and everyone began to return.

When Wei Bao went back, Zhao Kehu didn't cry anymore, but his expression was sluggish, as if a person who had evacuated his soul sat still.

"How is he?" Wei Bao asked Wei Zhongba.

"It's nothing, I'm tired of crying, maybe I've been sitting like this." Wei Zhongba said: "I have already brought back all the people related to Zhao Kehu's family and Zhao Kehu, and I am organizing inquiries." ”

Wei Bao nodded: "Very good!" Is an hour enough? Did you ask any useful clues? ”

"Not yet, they all said that they don't know what Zhao Kehu and Zhao's fourth daughter-in-law have." Wei Zhongba replied.

"It seems that Zhao Xiaolian is right, she really didn't tell anyone about seeing Zhao Kehu and Zhao Lao's fourth daughter-in-law sleeping." Wei Bao muttered to himself. At the same time, there is a feeling that there is no impermeable wall in the world, if Zhao Kehu and Zhao Lao's fourth daughter-in-law really have anything, check all the people close to Zhao Kehu, it is impossible to have no eyebrows at all?

"You told them that if you don't report the facts of the case, is it tantamount to complicity?" Wei Bao asked.

"Having said that, I must explain the law." Wei Zhongba said: "I know all the people in Zhao Kehu's family. ”

"Well, speed up the inquiry!" After Wei Bao finished instructing, he resisted the urge to yawn, and returned to the conference room, wanting to squint for a while, and then wait for the results of the fingerprint comparison to come out.

Wang Qiuya saw that Gongzi was sleepy, so she hurriedly covered the chaise longue that was carried from home with a blanket: "Childe, if you don't want to go back, just sleep on it, right?" ”

"As soon as the results of the fingerprint comparison came out, it immediately woke me up." Wei Bao said to Wang Qiuya.

"Good. Childe can sleep in peace. Wang Qiuya helped Wei Bao press the blanket: "I'll stare at it, don't worry." ”

Wei Bao closed his eyes at this time, it was already dawn, and it was less than 7 hours before the deadline of noon! A little more than three and a half hours.

Dimly asleep, I don't know how long it took.

Wang Qiuya shook Wei Bao awake and said softly, "Childe." ”

Wei Bao opened his eyes and asked urgently, "How is it?" ”

"A major discovery!" Although Wang Qiuya was a little dark by Wei Bao, and her eyes were a little bloodshot, her eyes were still bright.

Wei Bao sat up dizzily and suddenly: "How is it?" Found Zhao Kehu's fingerprints? ”

"That's not true, but I found Hou Lixing's handprint!" Wang Qiuya said.

Wei Bao was so shocked that he stood up suddenly, "Hou Lixing said before that he didn't know Zhao Laosi and Zhao Laosi's daughter-in-law at all, but now Hou Lixing's fingerprints were found on the bed of Zhao Laosi and his daughter-in-law?" It turned out to be him? ”

Although Hou Lixing was included in the ranks of doubters, Wei Bao was judging the case in the spirit of preferring to kill a thousand wrongs rather than let one go.

If Wei Bao is subjectively judged, among these people, he will not doubt Hou Lixing the most.

Although Hou Lixing and Bai Pengfu usually talk a lot and talk more sourly, the impression left on Wei Bao is not particularly bad, both of them are open-minded people, with good ability to accept new things, and they are also smart and have some courage, otherwise they will not follow themselves to do things.

Especially Hou Lixing, judging from his appearance, his thick lips often give Wei Bao an honest and honest impression, but he never imagined that it would be Hou Lixing!

"Interrogate Hou Lixing immediately!" Wei Bao didn't think much about it, facts speak louder than words, whether it is possible or not, Hou Lixing's fingerprints were extracted from the bed of Zhao Laosi and Zhao Laosi's daughter-in-law, and now, Hou Lixing's suspicion suddenly rose to the first place, far away from Zhao Kehu's suspicion!

Wang Qiuya responded, and was about to go to Wei Zhongba to arrange, "Don't worry, son, sleep for a while, and when the people arrive, I'll call Gongzi again." ”

"That, all the mudras, is it only one person compared to Hou Lixing? Also found the handprints of other people on the list? Wei Bao asked. The list refers to the list of all the wealthy households in the four local areas. The reason why I asked this is actually a bit evil, a woman and a man are already very cheap, but Wei Bao does not rule out a more chaotic plot.

Wang Qiuya understood, her face turned red, and she secretly wondered that a woman could follow several men at the same time, so what had become of it? Shaking his head and said: "I only found Hou Lixing alone, everyone watched it twice, the first time the comparison was completed, I was not at ease, and let people cross and watch it again." ”

Wei Bao sighed and lay down again, "You go and arrange it." By the way, not only Hou Lixing, let Wei Zhongba lead people to arrest all the people who are related to Hou Lixing and ask! Even if this guy refuses to admit it, he can break through from others! He is so vain, it is impossible for him to deal with such a strong man as Zhao Laosi alone! And if he hadn't killed Zhao Laosi's wife, someone would have taken care of him regularly and knew the whereabouts of Zhao's fourth wife. ”

Wang Qiuya agreed.

Wei Bao's heart was full of turmoil, but it was a lot easier, Hou Li's murder was more acceptable than Zhao Kehu's murder.

Although he and Zhao Jinfeng have not yet decided on their names, the parents of both sides have actually reached a consensus, which is considered a relationship between half of the family, if they personally arrest their own father-in-law and convict the father-in-law, how will they get along with Zhao Jinfeng in the future?

He is equivalent to Zhao Jinfeng's father-killing enemy, right?

Wei Bao is also secretly glad that he used fingerprint technology to prevent an unjust, false and wrongful case for no reason like the subjective judgment of this era.

From this point of view, it is estimated that there were many unjust, false and wrongly decided cases in ancient times.

Hou Lixing came soon, just like when Zhao Kehu was interrogated for the first time, he was angry, and he was right, and asked Wei Bao loudly: "Master Wei, it is true that you are the head of the entire Wei Jiazhuang, and you have more power in your hands than any patriarch, but you can't get power at a young age, right?" What is the matter with you who have taken me like a prisoner on this big night? ”

In the end, he is a dignified and upright person, Hou Lixing is full of energy, although he looks honest and loyal, but he does not lose his aura.

Wei Bao said calmly: "Don't you know why you were invited to the police station?" Do you know what the police station in Weijiazhuang does? ”

"It's your private yamen, Wei Gongzi wants to get over the addiction of being an official in advance." Hou Lixing said angrily: "You can't play with someone my age, right?" Big night, is it fun? I don't sleep enough, I get listless all day, and I get sick easily. ”

"Tell me about you and Zhao's fourth daughter-in-law." Wei Bao said: "Explain how you killed Zhao Laosi and Zhao Laosi's son, and then explain where Zhao's fourth daughter-in-law is now, you can go to bed earlier!" I'm sleepy, too. ”

Hou Lixing was shocked when he heard this, a face that was just because of anxiety and fever, and it was red all of a sudden, and it was redder than drinking too much white wine: "You, what did you say?" I don't know Zhao Laosi, and I don't know which one is Zhao Laosi's daughter-in-law, where does this start? ”

"Zhao Laosi is the adult among the two large and small corpses found on the deserted beach by the sea!" Wei Bao said impatiently: "Don't beat around the bush, I already have conclusive evidence, otherwise I wouldn't have invited you over at this point!" ”

"Say what? Wei Gongzi, you don't suspect that I killed someone, right? Hou Lixing shouted wronged: "I am unjustly dead, I, Hou Lixing, am the Lizheng in the Houma Fang, not to say that everything is done rightly, and he is an example for the villagers." But at least I won't do anything to lure other people's daughters-in-law, let alone kill people~! Someone must be trying to frame me and deliberately chew on the root of his tongue! It may also be greedy for Wei Gongzi's reward of 1,000 taels of silver! ”

Wei Bao lit a cigarette for himself expressionlessly, looked at Hou Lixing in the smoke, stared at Hou Lixing's face, couldn't figure it out, a person who usually looks quite kind, actually has a kind of murder!

Even if Wei Bao usually says a few cruel words, he actually rarely does anything ruthless, except for snatching a batch of high-end furs and killing many people before, he has never opened a killing ring again!

That's what life forces you to do! And Hou Lixing in Wei Bao's view, he is the person he envies the most in modern times, rich is more free than being an official, do whatever he wants, don't be afraid of people's gossip, it is a very comfortable life, but this kind of person likes to find it uncomfortable the most.

"Don't be in a hurry to deny it, take the initiative to say it yourself, it's better than what I said, take the initiative to say that it was surrendered, and if I say it, it's different." Wei Bao said coldly.

"What did I say? I really don't know who Zhao Laosi is, and I don't know who Zhao Laosi's daughter-in-law is, there are many people surnamed Zhao in Jinshan, and there are not a few families surnamed Zhao in our Houmafang, which has nothing to do with my eight poles. Hou Lixing said: "Wei Gongzi, you are still young, don't be deceived by a few Diao people who want to defraud you of 1,000 taels of silver." ”

"Okay, don't cry if you don't see the coffin! We extracted your fingerprints, that is, your handprints, from the bed of Zhao Laosi's house, you can't think of it, right? You are a dignified person, and you are the one in Houmafang, what are you going to do in the bed of a poor family in Jinshan? Wei Bao's voice gradually became stern, and when it came to the last sentence, the sound shook the wood, startling Wang Qiuya and Wei Zhongba on the side, and the hearts of the two of them were pounding.

Hou Lixing was even more trembling when he was yelled at by Wei Bao, and the sweat brush came out all of a sudden, I didn't expect that someone could still extract a handprint from the wood? Never heard of such an operation?

"It can't be! You're framing me! Hou Lixing retorted loudly: "I want to go to the Wei Command Embassy, and ask the Wei Commander to make the decision for me, it's really dirty to arrest people, and to catch traitors and take pairs!" I'm going to the Commander of the Guard, you can just say whatever handprints or something, I don't understand what you're talking about! I know, Wei Gongzi, you are so poisonous, you want to kill me, and then plot to seize my family property, our debts and real estate have been taken by you, and you are now refusing to let go of the rest of my family property, as well as my shares in the Heaven and Earth firm, you are trying to forcibly seize my silver! ”

Wei Bao was almost speechless by this guy, Zhao Kehu said so, and you say so now? "Death doesn't admit it."

Although I had expected that Hou Lixing might be so stupid and stunned as he is now, and he will not admit it, this matter is really not easy to do.

After all, it is ancient times, and Wei Bao believes that everyone can understand fingerprints at once, but there is still a cognitive problem here.