I teach kendo in Tokyo

Kazuma grinned: "Isn't this the same as showing off? This kind of thing has always existed."

"It will continue to exist in the future." Shiratori glanced at Kazuma with a meaningful look, "Unless you..."

Kazuma interrupted Shiratori: "So, do you have any additional solutions to this case? Just like the one you recommended to me yesterday."

"You have to know that in our Japanese courts, if there is a conflict between the actual evidence and the prisoner's confession, the side with the confession will win. I am not saying absolutely, but I have been a criminal police officer for so many years and I have never seen the actual evidence win."

Kazuma nodded and signaled Shiratori to continue speaking.

Shiratori continued: "But we can determine who the real culprit is through on-site investigation. Now Japan has also introduced many of the latest criminal investigation technologies. It seems that in addition to traditional items such as fingerprints and blood types, they have a new, absolutely unique It will be the wrong item to determine the identity.”

Kazuma looked at the calendar on the wall of the house next to him to confirm the current year, month and day, and then directly said the identity of the key that Shiratori sold: "Is it DNA?"

"Yes! It is said that this is a more accurate detection method than blood type matching and *spot matching. As long as a little bit of dandruff is extracted, the prisoner can be identified."

Ma Sha: "Actually, this may not be easy to use now."

"What might not be useful?" Shiratori didn't turn around for a moment, looking at Kazuma with a puzzled expression.

"I'm talking about DNA testing. This test is different from ordinary testing. If you want to conduct DNA matching, you must first establish a database covering all citizens across the country, and these databases are all interconnected. Now this alone cannot be done."

After all, it was 1985, and the hardware foundation of database technology had not yet been born. Various scientific research institutions in this era were still using tapes to record audio.

Because magnetic tape is the most reliable, most convenient, and largest-capacity medium in this era.

Therefore, it is not possible to establish a gene bank in this era like later. After extracting the genes in dandruff, compare them with the gene bank and determine the identity immediately.

In fact, at least in the era when Kazuma traveled back in time, humans did not establish a universal gene bank. They only recorded the genes of prisoners with repeated criminal records.

Gene comparison still mainly relies on collecting body samples of suspects, such as hair, and then comparing them with genes extracted at the scene.

The premise of using genetic comparison is that the police first identify a few suspects, but it cannot find the needle in the haystack to find the suspect.

After explaining to Ma Yitong, Shiratiao frowned: "Then there is no change! I thought that with this genetic technology, I could just throw evidence into the machine and print out the list of suspects. Spit it out."

The forensic examiner from the forensic department next to him smiled and said, "It's better to go find Doraemon."

Shiratori raised his eyebrows: "How come the forensic department feels that more and more people are watching Doraemon recently?"

Kazuma: "I grew up watching Doraemon. What's wrong with taking Doraemon as an example? Don't you think about the Oolong Police Station scene all day long?"

"Oolong Police Station? My son seems to have seen it when he was in junior high school. Do you think I look at such a childish person?" Shiratiao asked.

Only then did Kazuma realize that he had overestimated "Oolong Police Station". Because his painting style was old, he thought it was an early work. But in fact, even the painting style of Osamu Tezuka's Astro Boy was in 1985. It is considered a new thing in 2017 and has only been around for more than ten years.

And works with the style of "Fist of the North Star" and "Saint Seiya" are cutting-edge nowadays.

This is the unique time and space dislocation of people from the future.

Kazuma: "Let's not mention these, let's talk about what we just said..."

"You don't have anything to say just now? Investigate the scene, find the real culprit, and then..." Shiratori turned around, blocked other people's eyes with his body, and made a gesture of wiping Kazuma's neck.

Kazuma: "Why do I feel like you have been persuading me, Shiratori-senpai..."

"It's not an illusion, I'm just doing this. If you don't want to do this, then either join in the same trend, or become a pure white knight who is annoying wherever you go." Shiratori said Kazuma, "By the way, Amao You will probably become the dislike of thousands of people soon. Because the lawyer industry is much grayer than ours."

Kazuma ignored Shiratori's last two words and carefully observed the entire scene.

Japan's murder investigation attaches great importance to murder weapons, to the point of perversion.

You can feel this when reading Japanese detective novels and even Conan.

Why do prisoners in Conan often make fuss about murder weapons, and even come up with things like a thousand ways to kill with fishing line and a thousand ways to kill with piano wire? It's because Japan attaches too much importance to solving crimes.

In contrast, China's criminal law directly stipulates that as long as other evidence is conclusive and mutually corroborating, there is no need to find the murder weapon.

The reason for this provision is because "the murderer is likely to hide or even destroy the murder weapon so that it cannot be found." This reason is very convincing at first glance.

But Japan cannot do that. Japan must have a murder weapon. Without a murder weapon, the only option is to have the suspect plead guilty and sign the interrogation record.

Kazuma tried to find clues of other murder tools at the scene.

As long as the murder weapon can be identified, it is possible to bring the real culprit to the dock in court and have him plead guilty and serve the law.

However, a criminal police officer from Section 1 broke through the blockade and rushed in to report: "Someone has surrendered. He is a low-level member of the Fuqing Gang."

Shiratori snapped his fingers and looked at Kazuma: "I bet this person is fake and the real murderer."

The man in the trench coat from the other class nodded and said, "But the bullets fired by the firearm in this man's hand must have the same bullet pattern as the bullet that hit the victim's head."

Bullet marks are the spiral lines left on the bullet when a rifle with a rifled barrel fires a bullet.

This is actually left by the spiral pattern in the barrel.

Because all firearms will wear out when used, and the wear is not fixed, frequently used firearms will leave a unique spiral pattern.

This is also called the fingerprint of a firearm. Although this "fingerprint" can be changed by replacing a new barrel, it is generally assumed that bullets with the same spiral pattern are shot from the same gun.

What this person means in the first lesson is that the person who surrendered must have brought the pistol as the "murder weapon".

Several criminal police officers from Section 1 waved to Shiratiao: "Let's go. Congratulations on adding another achievement."

"What's the use of adding merit? I can't continue to be promoted." Shiratiao showed a self-deprecating smile and said goodbye to the person who taught him a lesson.

Kazuma: "Why do you feel that they are all so polite to you? When I was in the Metropolitan Police Department, they were always cruel to me."

"First, I have no factional conflict with them, and second, I am about to retire." Shiratiao spread his hands, "Let's see what we can find from this scene where the investigation has ended."

When Shiratori said this, the people from the forensic department were packing their things. After hearing what he said, they took the lead and stood up and said: "Shiratori Police Department, don't make it sound like we are lazy and don't work. We need to do what we need to do to collect evidence." It’s all done, we didn’t just start collecting things because someone surrendered.”

"I know. By the way, collect the body slowly first, we still want to take a look."

"Are you sure? There is no other cause of death. He has only one gunshot wound all over his body. The traces of someone hitting his head were also shattered together with the back of his skull."

Another forensic expert offered advice: "Dum bombs violate international conventions, and you can be charged with an additional crime and get a few more years in prison."

"That's useless. He's not a murderer. More sentences will make the fallacy bigger."

The forensic examiner shrugged and asked Shiratiao: "Police Shiratiao, when did you start to be a messenger of justice? You are not like you before."

"Isn't there someone who is curious about the truth?" Shiratori pointed at Kazuma, then pulled up the joints of the body to show Kazuma, "Look, this place is cramped."

Kazuma took a closer look: "Yes, indeed."

"If someone hits you hard on the back of the head, you may get cramps."

The forensic examiner who was still collecting things said: "This is useless. There is no definite connection between the two things. The cramp may be caused by being hit on the back of the head, or it may be a side effect of the bullet shattering the brain."

Shiratori: "Then when you came in, did you see the corpse's legs twitching?"

"When we arrived, he had been dead for a long time. Even if his feet were twitching due to nerve stimulation, they had stopped long ago. The body was hard when we arrived."

Shiratori: "The tendon dislocation you see must have occurred before rigor mortis."

Kazuma: "You always seem to want me to think that there is someone else responsible for this case."

"..." Shiratori stopped what he was doing and turned to look at Kazuma.

Silence suddenly fell between the two of them.

Suddenly, Shiratori took off his gloves and pulled Kazuma out: "You follow me."

Kazuma looked confused: "What?"

Shiratiao didn't answer and dragged him out of the blockade.

As soon as they left the blockade, uniformed police officers from a nearby police station took away the blockade.

Then the undertaker in charge of disposing of the body arrived.

That's right, because Japan lacks forensic doctors, the body will be handed over to the undertaker after the forensics department has collected evidence.

If there is any situation in the future, a forensic doctor will perform an autopsy.

Shiratiao pulled Kazuma into the car, then drove the car silently, racing all the way.

Kazuma: "Speak, this is driving me all the way and I'm so confused!"

"Shh!" Shiratori rolled his eyes at Kazuma, and parked the vehicle on the side of the road along the river.

Then he handed Kazuma the binoculars and pointed to a boat on the river.

He Ma Jiang doubtfully picked up the binoculars and saw Mr. Zhang from the Fuqing Gang at a glance.

"Wait a minute, Mr. Zhang? He is talking to..."

"The current acting president of the Kanto United Federation is in the position just because you cut your shirt into a vegetative state."

"Wait a minute, is the Fushou Gang going to make peace with the Kanto Alliance?"

"How is it possible, but you think about it, a gangster from the Guandong Alliance died, and then a gangster from the Fushou Gang came to take the blame, and then the big guys from both sides drank and had a good time on the boat. Don't you think there is something wrong with this?"

Kazuma: "Hmm... It's a bit of a coincidence. But I don't think you told me everything. You actually know who the prisoner is, right?"

"Yes." Shiratiao nodded, "The current acting head of the Kanto Alliance on the ship had a young master whom he loved, and then the young master committed a crime."

"Then let him stay in jail for a few years. As long as he finds a big lawyer, it will turn into negligence causing death in a minute."

"That young master has just been elected to the Tokyo Metropolitan Assembly, in the same term as your Nanjo."

Kazuma said "Oh".

Shiratori continued to ramble: "The Yakuza's son has started to enter politics. Isn't this just like the movie "Once Upon a Time in America"?"

In the American past, the gangster leader got in touch with the federal department by helping to suppress the beating of workers by hanging street lamps. Then he sacrificed his brothers, "died" himself, and turned into a high-ranking federal official.

Kazuma: "So, you are going to let me kill this Yakuza Young Master? Can't you expose this?"

"Do you have evidence?"

Kazuma hesitated for a moment, but in the end did not say "You can't prove what you said."

He still wanted to believe in White Bird.

At this time, Bai Niao lit a cigarette, took a strong puff, blew out a smoke ring, and then raised his head and looked at the slowly moving boat on the river: "Almost all my dreams in life have been realized. Only a little is left."

"There are too many gray parts in my life. I don't know when I was abandoned by those big shots in the struggle, and ended up being dragged into the interrogation room of the Tokyo District Prosecutor's Office.

“I managed to put my two children through college and graduate school, and let them enter big companies.

"They are different from me. They are not lifelong police officers like me! They have gone to college, and they do not have a glass sky. From now on, my Shiratori family is half Chinese. My children are still looking for jobs. Design a family crest.”

Kazuma looked at Shiratori silently.

Shiratiao took another irritated puff of his cigarette and continued: "The only thing I'm worried about now is that I will be treated as an outcast in the struggle of those big shots. You know? If I are suddenly taken to the Tokyo Prefectural Inspection, what will happen to me?" Both children will be affected."

Kazuma: "What does that have to do with you inducing me to become an extrajudicial sanctioner?"

"Because then you will make trouble for the big shots, and I will be your counterweight, understand?" Shiratiao put the cigarette in his mouth and slapped his chest with both hands free, "I just want to retire safely, is that wrong? That's it. You got what you wanted, and I got what I wanted, so I’m good to you!”

Kazuma looked at Shiratori, and he always felt that Shiratori had something left unsaid.

However, the logic of Shiratori's words is quite logical.

Kazuma thought seriously for a few seconds and shook his head: "No, I will not punish this young master. Because the person who died was a bad guy, and the one who went to prison is also a bad guy. However, I will give him some obstacles."

Refers to installing bugs and tapping telephone calls.

Shiratiao made a cheering gesture: "Okay, the extrajudicial judge has made his own ruling, so I won't say anything."

"No, I..."

Kazuma's words were interrupted by Shiratori: "No, this is the ruling. Remember, whether you decide to let someone go or sanction him, you are using your authority as a judge. 'Justice' Sanyo."

In fact, I almost updated it to a new book... The name of the new book was chosen by the editor, and it's called "All Battles End in Eight Seconds."

Why are the battles so short? Because the male protagonist is a quick shooter.

Not in the sense of **, he is a real fast shooter.

Yes, I'm going to write about cowboys, okay!

If I wanted to write about a big-breasted magician who was shot because he was too sexy, and if I wanted to write about being shot in a queue because he was said to be too niche, I would have no choice but to become a Western gunslinger.

When I chose this topic, editor Mung Bean complained: "The ones you chose are all niche, you don't want to be popular, right? Come on, I don't care!"

Therefore, the new book is a Western gunfighter that is extremely niche. I don’t want it to be popular, so don’t vote or invest.