i'm not a detective

Chapter 123 Can fatty pork blow up people?

The crime rate in Japan is very low, but about 5000 people go missing every year.

This is official statistics. Judging from the working capacity and efficiency of the Japanese police, the actual number of missing persons should be far more than that, but it is difficult to determine how many people have disappeared.

Two missing persons were killed today, one in the morning and one in the afternoon.

No one sleeps at the Hirano General Police Station tonight, the whole building is brightly lit, and there are police cars coming in and out with flashes of red and blue. Find out the criminal before he is scolded as a pig's head.

This is different from the previous cases. The bombing case, or the serial bombing case, is easy to make national news, and the nature of killing one or two people is very different from ordinary homicide cases.

Nakano Eri is now the "strong general" of the Hirano Police Station, and there are three groups of people under her command, who were also assigned tasks at the search headquarters meeting, so she immediately invited the "elite soldier" Qiyuan Takeshi to assist in the analysis According to the facts of the case, strive for an additional layer of insurance.

Staying at the police station is still safe. Presumably the prisoner is not crazy enough to blow up the police station. In addition, there are consultant fees to be paid. The cooperation with Nakano Eri was also very pleasant. Takeshi Qiyuan also brought Qingjian Liuli over. Make soy sauce, flip through the case information at will, and see if you can provide some suggestions for arresting the prisoner.

The first incident took place at 32:[-] this morning. On a bustling commercial street outside the city center, a man suddenly rushed out of a small alley with an improvised bomb strapped to his back, crying "Help", "Help!" Help me", "Please, please help me cut the blue line" and other words, holding a pair of scissors and looking for someone to help dismantle the bomb, but only scared the people around and ran around, there were no bomb disposal experts at the scene , no one dares and no one wants to help.

About 5 minutes later, there was a loud muffled sound. Under the eyes of everyone, the man howled in despair, his back exploded, and he flew out, bloody and bloody, and died on the spot. By the way, it spread to several people around him, causing three Minor injuries, minor burns to the respiratory tract of many people, plus a larger-scale panic fleeing, causing dozens of people to smash their heads, scrape their knees, and sprain their ankles.

"The explosives turned out to be ammonium nitrate glycerin. I asked why the sound was so strange." Qi Yuanwu looked at the information and recalled the scene at that time, but solved a small doubt before.

The first case happened earlier, and the forensics department had already completed the on-site investigation and search. Leaving aside the remains of the victim, it was really tragic, but fragments of the improvised bomb were found in all directions, which probably restored the appearance of the bomb. The test is also completed, and it is rare that the efficiency is high once.

"What is ammonium nitrate glycerin?" Qing Jian Liuli was watching the criminal policemen coming and going in the big office, with an elite demeanor, her beautiful big eyes were full of envy, and she wanted to join them and work together. Yuan Wu came back to his senses after speaking, and wrote down the key points of knowledge by the way-when the ammonium nitrate glycerin agent exploded, it sounded like a super boring fart from a long distance.

Takeshi Qiyuan also became interested in this matter, and went to look closely at the photos of the bomb fragments found by the forensics class from the first crime scene, and explained casually: "An explosive that is easy to synthesize and can release toxic gases The disadvantage is probably that the power is relatively small, and it is more dangerous when it is synthesized by hand, it is easy to collapse yourself first, and the advantage is that it is difficult to trace the source."

Seeing that Liuli didn't understand, nor could she understand the string of chemical terms on the information, she asked curiously, "Why is it so difficult to trace the source?"

"Because all the ingredients can be obtained legally. The main ingredient is fat pork. Even if you buy [-] kilograms at a time, no one will suspect that you want to blow up others, let alone record it."

"Fatty pork can kill people?" Qingjian Liuli was stunned, thinking of twice-cooked pork, which was the most delicious fatty pork in her opinion, but she never thought that such a delicious thing could be turned into a murder weapon.

"Of course, everything in this world can be a murder weapon. As long as you add fat pork oil to caustic soda, you can get soap and glycerin, and then mix nitric acid and sulfuric acid at a ratio of 3:3:4..." Takeshi Qiyuan said halfway. Stop talking, "Forget it, I won't tell you the details, lest you turn around and blow yourself up to death, but all the materials needed for this kind of explosive can be separated or synthesized by yourself from daily necessities at home, and you can easily avoid the control .”

After a pause, he added, "If you really can't figure it out, you can think of this explosive formula as Nobel's 'Denamer formula' back then. It is said that Nobel only went to elementary school and had no interest in science. , It is because they are not afraid of death and dare to mix nitroglycerin with various things that they finally get rich. The same is true for the current prisoners, who use an outdated low-power explosive that can be mixed by hand with local methods. "

Qing Jian Liuli still didn't quite understand it, she didn't know what the Dynamite formula was, but in order not to appear too ignorant, she suddenly realized: "So it's like this..."

Explosives are not easy to trace, so it seems that the only clues can be found from the victim, but she found that Qiyuan Wu was still looking at the fragments of the bomb, and she couldn't help but wondered: "Can you find clues on these fragments?"

Qiyuan Wu shook his head: "No, they are all rough handmade products, from the support rod, the fixed bolt to the plug, the medicine pool, and the igniter, they all seem to be homemade, with obvious traces of hand-polishing, but combined with explosive , has been able to explain a problem."

"what is the problem?"

Qiyuan Wu smiled and said: "The prisoner is very likely to be self-taught, still using old-fashioned textbooks, and a bit crazy, not afraid of death at all, with such a rough production, he is very likely to blow himself up or blow himself up before committing a crime." be hospitalized."

Qing Jian Liuli looked at him speechlessly. After analyzing it for a long time, he found out that the criminals were all bombing around the city center. You said he was mentally normal. Is that possible?

She was speechless for a moment, then looked at the restored simple picture of the bomb, and asked a little strangely: "Okay, it's a bit crazy for us to be the prisoner first, but he also installed a timer for the bomb and gave the victim A pair of scissors, let him run to ask someone to help cut the wires... What is he trying to do? If someone helps cut the wires, can the bomb really be dismantled?"

Takeshi Qiyuan also looked at the part of the restoration picture about the bomb timer, nodded slightly and said: "Theoretically speaking, if you can cut it right, you can indeed disable the bomb. As for what he is drawing..."

Qing Jian Liuli lifted her spirits, solved a puzzle that had puzzled her for a long time, and asked excitedly: "Can you really stop? I thought it was made up in movies and TV dramas."

"Art comes from life, and that part has been adapted, but it's really not made up." Takeshi Qiyuan pointed to the restoration diagram of the time bomb and said, "In the simplest terms, the timer is a parallel circuit with two branches. , the detonator is placed on one of the branches, and the other branch is a simple wire.

It is stated in the science textbook that if in a parallel structure, one of the two branches has a resistance, that is, the timing detonator, and the other branch has no resistance, the current will all go from the non-resistance branch, and the igniter will not get it. The current will not work, and the bomb will not be able to detonate at this time. You can only wait for the timing to arrive. The mechanical or electronic structure of the detonator will take effect, so that the resistance will disappear, and the current will flow into this branch to activate the igniter. The igniter ignites the charge pool, causing A series of explosive reactions.

So if you cut the line, you can theoretically stop the bomb from detonating. "

Qingjian Liuli understood, and felt that dismantling the bomb was not too difficult, and immediately said excitedly: "It's that simple? Then can't I just cut off all the wires? Or just pull out the battery, so the timer will run out of power. It won't detonate either!"

Looking at her, Qiyuan Wu couldn't help laughing and said, "You are such a genius. If the prisoner didn't install a set of capacitive sensing circuits to detect the voltage, it would indeed work, but it is more likely that the prisoner must have installed it, and the voltage would become unstable. In an instant, you will be blown to the sky immediately."

Oh, by the way, this kid is talking about the most simplified situation. The prisoner is definitely not that stupid. He will definitely install some other things in a mess, and even design several sets of current loops to prevent others from cutting wires and smashing the timer. No, take the bomb away from the body or simply dig the battery.

But having said that, it's no wonder that high school is beyond the scope of compulsory education, and can be considered higher education. It turns out that as long as you graduate from high school, you are enough to go out and commit crimes!

The things that high school students learn are a bit powerful. If you are not afraid of death, you can make a time bomb after learning it.

Qing Jian Liuli has completely figured it out, and gave up the idea of ​​changing jobs as a bomb disposal expert, and is going to go back and continue to strengthen self-study. You must learn high school knowledge well, or you will be despised even if you become a criminal, let alone a detective or a criminal policeman. .

She quickly changed the subject, looked at the colorful photos of wires and said: "If it is really possible for the bomb to stop working by cutting the wires, the prisoner gave the victim the scissors and asked him to call for help. He did it on purpose? He did it on purpose. Wires of different colors are used... No, the time bomb in the movie seems to be a bunch of colorful wires, why is that?"

"There is no problem in this aspect, because everyone knows that bombs are super dangerous goods, and it is impossible to assemble them daily and put them in your home or carry them with you. That is not preparing for a crime, it is suicide, so they are temporarily assembled when they are needed. The wires are not divided into different colors. When the prisoner connects the power supply, igniter, spare igniter, igniter chamber, failure igniter chamber, trigger and timer, he confuses and connects the wrong wires. He blew himself up."

Takeshi Qiyuan stroked his chin and said, "But why did the prisoner allow the victim to ask for help, and even gave him the tools? It's really weird. There should be some kind of purpose, but it's hard to judge what the purpose is at the moment."

Qing saw a black shadow flashed in Liuli's mind, and she asked vigilantly, "Could it be the mysterious person X? He came out to commit crimes for fun again?"

"Who is the mysterious person X?" Takeshi Qiyuan looked at her in surprise, "Such a stupid code name, what kind of trash novel is it from?"

Only then did Qing Jian Liuli remember that she came up with the code name herself, and she hadn't told Qi Yuanwu yet, so she hurriedly said: "It's the accomplice in the last suicide fraud case, and he even sent you something, didn't you say he was a perverted entertainer? Is it a crime? Could it be that he strapped a bomb to the victim this time and wanted to watch the victim struggle for fun?"

"Him?" Takeshi Qiyuan was also very impressed with this person, but he touched his chin and thought for a while, then pondered, "Probably not, last time he induced and assisted others to commit crimes, and personally went into battle to tie people and bombs... and last time The characteristics shown do not match, and the suspicion is not high."

Qingjian Liuli touched her chin and thought for a while, she felt that it made sense, the mysterious man X gave her the feeling of manipulating other people's fate, and she went directly to commit the crime, and the style suddenly fell down... Thinking about it this way, it is indeed suspicious Big.

She hurriedly went to find the victim's information again, and said: "Then let's take a look at the victim's situation. Although the victim may be randomly selected, the criminals have kidnapped the victim. At least some clues can be left behind." , you can look for clues from here."

She is very enthusiastic, even more enthusiastic than the criminal police, and she is very active in solving the case, or at least wants to make a contribution, but before she finished speaking, the criminal police in the big office suddenly became agitated, and someone shouted excitedly while covering the phone: "Xiao Li There is news from the police department, and the prisoner called to make a request!"

(End of this chapter)