Chapter 86 Beat Him
Chi Xia and others spent an entire afternoon picking out twenty-three reports that were more consistent with the case of white bones from the missing persons data.
Among them, five people reported the case within three months, and the remaining 18 reported the case between .
Curly went out for a while and came back with a disappointed look on his face: "I even asked the police, but they haven't received any relevant reports recently."
"Then we can only look for it among these missing cases." Lin Wenjue breathed a sigh of relief.
"Twenty-three..." Cao Bin lay on the table in pain: "How can we check this? We have to knock on every door again."
Curly added: "It's not just a matter of knocking on the door. The person is clearly missing. If we go to their door and tell them that your person may be missing, we will definitely be turned away. In serious cases, we will even be beaten..."
Lin Wenjue held the thermos cup and said, "There is nothing we can do. We can only bear it silently. After all, we are happy people's policemen."
His plaintive tone made everyone laugh. Before everyone’s laughter faded, Ning Yi came in while chewing on some instant noodles: “I don’t know whether you are happy or not, but I can bring you happiness. Hurry up and give me a glass of water. How can you eat this dry stuff?”
Luo Xun poured him a glass of water and handed it to him: "Any results?"
Ning Yi rolled his eyes at him and sat down on the chair: "I can't waste Captain Luo's instant noodles. The results are all in there. See for yourself."
Luo Xun took the document from his hand, and Chi Xia immediately leaned over to take a look.
Curly-haired boy complained: "Lao Ning, that's not called instant noodles."
Ning Yi frowned: "Doesn't this look like instant noodles?"
Curly said earnestly: "It has a name, it's called Little Raccoon Crispy Noodles."
Ning Yi was stunned for a moment, then he took another bite and swallowed it with the water in the cup. "Don't worry about what it is, as long as it's edible. But why is it called a raccoon and not a red panda or a little bear? Don't you think it's weird?"
Curly held his head and said, "Someone come and save me, I want to die..."
Ning Yi looked at Curly-haired man who was about to collapse and smiled with such gloating pleasure.
After reading the information, Luo Xun handed it to Chi Xia and asked Ning Yi, "You mean, the time of death of the deceased is actually three months from now, which is... three months ago?"
Ning Yi stood up and said, "Yes, according to the normal skeletonization process and Dongzhou's climate, the corpse should have been skeletonized for at least six months or even longer. However, after our inspection, the bones showed signs of being processed, which means that someone used chemical means to speed up the decay process of the corpse."
"In other words, the murderer has some professional knowledge of chemistry?" Chi Xia also finished reading the information and handed it to Lin Wenjue and the others.
"Hydrofluoric acid?"
Lin Wenjue looked at the chemical name on the information and said, "There won't be many ordinary people who know how to use this thing to corrode corpses."
Cao Bin continued his words: "Even if they knew, ordinary people wouldn't easily get their hands on this kind of chemical."
Ning Yi explained: "The main uses of hydrofluoric acid are as analytical reagents, preparation of high-purity fluorides, glass etching and electroplating surface treatment. When its concentration is low, it has weak acidity due to the formation of hydrogen bonds. But the key point is that when its concentration reaches 5 mol/L or more, self-ionization will occur. At this time, its acidity is equivalent to that of anhydrous sulfuric acid. At this time, it is very corrosive, mainly causing serious damage to teeth and bones."
Cao Bin covered his head and said, "I only understood the last sentence..."
Ning Yi curled his lips and said, "It doesn't matter if you don't understand what I said before. What I want to say is that, to a certain extent, if the murderer was more ruthless, we might not be able to find this body today."
His words made everyone feel a chill down their spine. Yes, if they added a little more, perhaps they could destroy the body and cover up all traces.
Chi Xia frowned in thought, then slowly spoke: "I remember that the concentration of hydrofluoric acid sold on the market is equivalent to 22.5 mol/L, because this thing is mostly used for the purification of aluminum and uranium, as well as etching glass, engraving patterns, marking scales and text, and it can also be used in the semiconductor industry and refineries. Forensic Doctor Ning, so hydrofluoric acid, it is not as difficult to get as sulfuric acid, right?"
Curly and Cao Bin were completely stumped. They lay on the table, constantly adjusting their language systems to understand what they were saying.
Ning Yi looked at her in surprise: "You know a lot."
Luo Xun also looked over and thought: She not only knows that, she even blew up her own house when she was fifteen while studying chemistry.
"I just happen to know a little bit." Chi Xia smiled and said, "I studied science in high school."
Luo Xun snorted softly, and probably only Chi Xia heard it.
Ning Yi continued, "It's not that difficult to get it, but it does require certain qualifications. At least, you have to be engaged in a related industry. Another thing is that the storage conditions of hydrofluoric acid are difficult for ordinary people to achieve. Chi Xia, don't you agree?"
"Yeah." Chi Xia nodded. "Let's not talk about common sense like keeping the room cool and ventilated. When storing hydrofluoric acid, the temperature in the space cannot exceed 30° and the relative humidity cannot exceed 85°. It is indeed difficult for ordinary people to do this."
Ning Yi was very satisfied with her explanation, with a smile in his eyes: "Hydrofluoric acid is clear and colorless, but it is a fuming corrosive liquid, and it is accompanied by a strong irritating smell. You can pay attention to this during the investigation, it can help you a lot."
Luo Xun nodded.
Curly shuddered and said faintly, "Life is really full of murderous intent..."
Ning Yi laughed loudly, patted his butt and prepared to leave: "Well, comrades of the killing team, my mission has been completed. Next, you should attack bravely. I will always support you from the rear."
He clenched his fist, made a cheering gesture, and left the office in a cool manner.
Lin Wenjue watched him leave and said slowly: "Why do I want to beat him up so much?"
Cao Bin gritted his teeth and said, "Rampage him."
Curly firmly seconded, "Beat him."
The three of them looked at Luo Xun together.
Captain Luo lowered his eyelids nonchalantly and picked up the documents on the table again: "I agree."
The three of them looked at each other and ran outside. Soon, the cursing and screaming of Ning Da's forensic doctor were heard in the corridor.
Chi Xia was infected by their laughter and Ning Yi's screams, and could not help laughing. When she looked up, she saw Luo Xun staring at her.
The smile on her lips hadn't faded yet: "Captain Luo, why are you looking at me?"
Luo Xun's expression flickered twice, and he asked her: "Um...are you hungry?"
"fine."
Chi Xia leaned over to get the missing persons files and picked out five of them: "According to what Forensic Doctor Ning said just now, we can rule out at least eighteen of these twenty-three files."
Luo Xun calmed down and placed the remaining five documents on the table with her.
"Du Xiaoyu, 28 years old, unmarried, one son."
"Tang Lan, 30 years old, married, with one son and one daughter."
"Liu Caiyun, 35 years old, married, two daughters."
"Zhou Wanrou, 34 years old, married, one son."
"Wan Jiaqian, 32 years old, divorced, one daughter."
After he finished speaking, he looked at Chi Xia and said, "Who do you think is the one we are looking for?"
Chi Xia looked at the documents solemnly: "No matter which one it is, it will be a disaster for their relatives. Captain Luo, let's investigate now."
"What are you looking for?"
Luo Xun put away the information and said, "Look at the sky outside. If we go there at this time, we'll be beaten out."
Chi Xia looked out the window and saw that it was already dark.
"Let's go back first." Luo Xun said, "Have a good rest. We may have to run all day tomorrow, and..."
He looked at Chi Xia with a hesitation, and after thinking for a while, he pointed at her arm and asked, "How long do you need to use that medicine?"
"It won't be used again in the short term." Chi Xia touched his arm.
"Well... that's fine."
Luo Xun felt around and took out a card, then handed it to Chi Xia: "Well , you just got here, and I haven't had time to get you a meal card yet. This is my card, take it and use it as you like."
Chi Xia looked at the card, then at Luo Xun's face. Seeing that Captain Luo looked a little embarrassed, she suddenly found it funny and suddenly remembered the fight between the two in the alley. He was also in the same grumbling tone at the end, and said that he wanted to find flowers in an attempt to cover up his mistake.
Luo Xun felt even more embarrassed when she stared at him, and poked her with his arm: "What are you standing there for? Take it, do you dislike it?"
Chi Xia took the card with a smile and suddenly asked him, "Captain Luo, were you shy in the alley?"
"What?"
Luo Xun was stunned, then thought of something and his face turned red again.
Chi Xia smiled and said, "Nothing, Captain Luo, I'm off work now."
Luo Xun quickly shook his hands: "Hurry up, let's go."
Chi Xia walked to the door, turned around, and met Luo Xun's panicked face.
She said, "Captain Luo, you are blushing, do you know that?"
Luo Xun: ...
I owe you, right?
