Chapter 133: Chapter133

Han Xiaomei's cat was out of the hallway, looking around, and finally she walked into the trace examination department without taking notice.
A few minutes later, she was carrying a shoulder bag, her hands were casually in her coat pockets, she was limping with high heels, and raised her head out of the Municipal Public Security Bureau.
The hour hand was close to 12 o'clock, and Yan Yan, sitting in the living room, suddenly looked up, and the doorbell rang the next second.
"I was scared to death. When I came out, I bumped into Director Gou overtime and asked me why I ran to the Trace Inspection Section in the middle of the night. I had to say that I had forgotten to register the survey box that appeared yesterday. Make up the registration! "Han Xiaomei took out several bottles and cans and spray bottles one by one from the bag, crying without tears:" Director Gou also trained me a few words, and he knew what to do if he told the Yu team? I Is the good career of the company just beginning to be stained! "
Yan Yan said nothing, went to the kitchen to pick up a half cup of distilled water, put on trace gloves after returning, mixed the powder of luminol and potassium hydroxide with water, and poured it into a spray bottle filled with hydrogen peroxide.
"Brother Yan, what are you doing," Han Xiaomei finally felt terrified, and whispered, "You ... did you cut your wrists at home and get blood on the ground?"
"..."
Yan Ye looked her up and down, came to the bathroom door and took a breath.
Han Xiaomei shivered behind her, and saw Yan Yan holding the spray bottle to the ground, the corner of the wall, and the washbasin, spraying dozens of times, exiting the bathroom and turning off the light.
"Hoo--" Han Xiaomei covered her mouth.
The sink in the dark was dotted with stars. On the ground, a small piece of faint blue-green light glowed slowly. It was a blood reaction!
"Do you know what's going on?" Yan Yan asked.
"I didn't see anything, I didn't know anything!" Han Xiaomei covered her eyes with both hands: "Yan team, Yan brother, Yan rich man! I beg you, I promise to say nothing after going out! "
"Your police school textbooks should have learned that Luminol solution is catalyzed by iron ions in the blood and emits blue light upon oxidation. Therefore, it is used to detect blood at the crime scene. But if other strong oxidants exist at the scene, Luminol It also emits light, so using hypochlorous acid bleach or urine to smear the scene, strong fluorescence will interfere with the judge's judgment on blood stains. "
"I, I, I, and we have been back," said Han Xiaomei. "The strong fluorescence catalyzed by hypochlorous acid lights up very fast, and the fluorescence catalyzed by blood iron ions lights up slowly, which can be divided by taking pictures and exposing them. Distinguish ... "
"But what to do when criminal cameras were not popular?" Yan Yan asked rhetorically.
Han Xiaomei's brain turned desperately, but Yan Han's powerful aura made her turn stumbling.
"It's actually very simple," Yan Min said with a sneer, slowly: "As long as the scene is blocked and kept dry, the oxidant will evaporate when it is tested for a few days, and iron ions will not disappear for a long time, even if Luminos will still shine in a few years. "
Han Xiaomei said silently: "Oh-"
"I walked for three weeks. No matter how much bleach was used that day, it should evaporate completely when it was completely dry. In other words, these fluorescences are not hypochlorous acid, but blood."
Fluorescence is very weak, on the one hand, it has been cleaned by bleach, on the other hand, because the amount of bleeding itself is not much, and it is washed away by water, causing the area of ​​blood water to spread. Thinking Han Xiaomei had a knot in her head and asked subconsciously: "Who's blood?"
As soon as she said it, she could not wait to bite off her tongue.
"Who else can it be," Yan Yan looked at the fluorescent shapes on the ground and on the platform, and said eeriely: "Of course it's the idiot named Lu."
Han Xiaomei: "..."
In the evening.
The red flag car stopped downstairs in the unit, and Lu Bureau got out of the car. He declined the driver's kindness to help him carry the bag upstairs, and stumbled into the corridor door alone.
Then he turned the corner, immediately lifted his back and raised his back. His steps were light and flexible, and he strode into the elevator.
"I'm back!" Lu Bureau opened the door with a rattling of keys, shouted aloud, put the purse under the creak in the porch, and lowered his shoes. There was a rattling sound from his wife's cooking in the kitchen, and he turned comfortably to loosen his shoulders, and then the action stopped in the air.
Yan Yan sat in the middle of the living room sofa, staring blankly at him.
"You say this child, come here, and bring something." The wife brought out the ruddy and shiny shiitake mushroom braised pork from the kitchen, and murmured with a smile: "This is not good for years, but also give me an old lady What skin care products-I said, where do I apply that, what kind of old face is ruined, it is wasteful to apply it ... "
My wife went back to the stovetop to stir-fry the golden needled mushrooms, and there was only Lu Bureau and Yan Zheng standing in the big space, facing each other.
"At that time, Jiang stopped visiting Yue Guangping without permission. Only half a year later, Yue Guangping died and Jiang stopped." Lu Bureau finally sighed and murmured, "The country really should make a rule to prohibit the detachment leader from casually visiting the public security bureau's guest. This sign is a terrible evil ... "
Boom!
A glass full of rock sugar chrysanthemum and wolfberry tea was placed on the desk by Lu Bureau, and then he "hehe" shoved his big into the swivel chair, wearing a reading glasses and asking, "What the are you doing? Say in advance, You are still under suspension review and you are not allowed to spy on any daily affairs and case-related information of the city bureau, otherwise you will be dealt with in violation of discipline. "
"When you came to my house that night, what were you planning with Jiangzhan?"
Lu Bureau gave a hand, "What what?"
Yan Yan's face remained calm.
"..." Lu Bureau held up the tea cup: "I have told you everything that should be said, and the rest that I can't tell you, it's useless to ask. I'm not Lao Wei, and you can be softened by asking a few words. Regulations are regulations ... "
Snap-Yan Min flicked a mobile hard disk out of his coat's chest pocket and patted it on the desk.
Lu Bureau was almost choked by tea: "What is this?"
"On the night you were stabbed by Jiang Zhan, a surveillance video of the back door of Hubin District."
There was a sudden silence in the study, and both eyes focused on the small, unsophisticated silver mobile hard disk on the desktop, and they didn't know what they were thinking about. After several minutes, Lu Bureau slowly said:
"The surveillance video has been taken away and stored in the city bureau. According to confidentiality regulations, except for the case handlers, the property company is not allowed to restore and leak the original video to any irrelevant person without authorization, otherwise it will bear severe criminal responsibility ..."
"But the company's internal leaders can access it." Yan Zheng interrupted him, "I'm sorry, my dad has now become the new boss of that property company."
Lu Bureau: "..."
An indescribable expression finally appeared on Lü Ju's always chubby and grinning face, which seemed to be holding on to something. Judging by his mouth shape, what he got back by stiffly should be: "I am a fairy board!"
"That night three weeks ago, you came to my house to visit Jiangzhan and proposed an undercover plan to him. Unlike the wind you later let out, Jiangzhan did not reject you, he agreed."
Yan Yan leaned back in the back of the chair, the cold light in the eye socket under Jianmei.
"You discussed to let Jiang Zhan stab you and then escape out of Jianning overnight. But there is a very dangerous point here, that is, Jiang Zhe needs at least a few hours to go to where the police can't find it for a while. Even if your stabbed wound avoids the main blood vessels and internal organs, it will be difficult to persist for a few hours on a cold and rainy night without rescue-so you have to discuss the difference. "
Lu Bureau supported his forehead, calmly speaking.
"Jiangzhan did leave the house at about nine o'clock, but you have been staying in my house until early in the morning. It is estimated that the cleaners on the street started to work before you stood in my bathroom and carefully looked in the mirror to find the knife edge. You stabbed yourself with a knife. In your early years, you came from a forensic background. In the past few decades, there have been hundreds of corpses and you know the structure and blood vessels of the body. The reason why you do n’t stab it outdoors is because the rain that night has reached the first place. In the early morning of the next morning, the 'Assassination Site' that you surveyed beforehand is very dark and remote. If your hands are slippery because of low visibility, it is likely to cause an accident. "
"After you cleaned up the bathroom carefully, you left my house, came to the assassination site, and burst the small blood bag prepared in advance. It was logically discovered by the sanitation workers and sent to the hospital." Yan Xuan said indifferently. The knife injury is different. It will be found if the injury is strictly inspected, but Director Hu of the Provincial Department of the Technical Corps is responsible for the injury assessment. Our city bureau is a good master. As long as it is hinted in advance, he will not rush to work seriously. Check. "
Lu Bureau wanted to refute anything, but Yan Zheng did not give him the opportunity: "Besides, there is another area where physical evidence can be used for community surveillance, but the video is not clear. When I was under surveillance by Fang Zhenghong a few months ago, One night he followed me downstairs and was found. Jiang Zhan and I later transferred videos from the property company afterwards. It was then that Jiang Zhan remembered the various blind spots in the community. "
Lu Bureau held the beating forehead and said earnestly: "Yan Yan, I understand the fact that you do not want to believe that Jiang Zhan is a traitor. But can you occasionally and reluctantly, condescending and noble, and trust your leadership a little?"
"Leader?" Yan Yan smirked at the bottom of his eyes, and said, "Vice Vice Bureau Wei and the Yu detachment knew your plan from the beginning, otherwise the small blood bag that had been squeezed out at the" scene scene "would be tested for serum chlorine penetration. Isn't it filling? "
Lu Bureau: "..."
Lu Bureau finally sighed.
"Yan Yan, Superintendent Yan, and Deputy Deputy Detachment." He asked helplessly, "Why don't you believe that Jiang stopped at your house and stabbed you to lead me? Then he fled while in chaos, and I lied about being assassinate Actually, it's to protect you, the of melon ?! "
"Because you cleaned the blood in the bathroom with bleach is you." Yan Yan said coldly, "Jiang Zhan will not mistake my face towel as a rag."
The well-developed Lu Bureau estimated that the final flaw came from here. He sat silently in the swivel chair, his big round face, which had been raised in just a few days, twitched, only his eyelids fluttered and he couldn't stop.
"Do you have anything else to say?"
"……Have."
Yan Yan made a mock gesture, please.
Lu Bureau finally couldn't help asking this sentence: "You are a man in his thirties, and his face with an old pink and yellow towel ?!"
Yan Yan raised his lips with no smile. "The old towel absorbs water well, otherwise how can the taste of hypochlorous acid be retained to this day?"
The two looked at each other for a long time, and Lv Bureau had a complex expression. I didn't know whether to praise Yan's outstanding sense of investigation, or whether he regretted that he finally planted it on an old towel. That night he didn't wipe off the last bit of bleach water with his coat. He was afraid that the woolen fabric fibers would stay in the seams of the tiles and leave suspicious signs. .
"Old, old!" After a few minutes of stalemate, Lu Bureau finally shakes his hair and expresses a heavy emotion: "It's not working, oh!"
Yan Yan leaned on the back of his chair, his thighs were folded, his hands were on his chest: "So Jiangzhan did not stab you?"
"..." Lu Bureau nodded.
"Isn't he taking the initiative in spades?"
Lv Bureau nodded helplessly.
It seemed that something was holding Yan's throat so that his throat was blocked, staring directly at the opposite.
"Jiang Zhan was deployed as planned, sneaking into the drug trafficking gangs of Wu Tun and Wenyi to undercover, ready to wait for the opportunity to remove the entire underground drug trafficking route between the China-Myanmar border and even Jianning." Lu Bureau said slowly: "This incident It is highly confidential and has very few insiders. It has been approved by Director Liu of the Provincial Public Security Department. We have promised Jiang to stop. If the task is successfully completed in the end, he will be vindicated, and the truth of the 1009 bombing three years ago will be revealed. World. "
"If it wasn't for Lu Bureau, I could still maintain the illusion for you for a while ..."
"Do you still believe me? Don't believe me."
"... When we meet again in the future, it is already the enemy of life and death, and death is the best filter ..."
"Yan Yan," the sky full of clouds reflected in the eyes of Jiangzhan, and he only looked at the figure of his lover close by, and said, "I love you."
...
Countless sounds trembled in the ear drums at the same time, Yan Yan lowered his head, and held his mouth tightly and gasped. Crazy joy and extreme pain are torn in the chest at the same time, tearing the liver and intestines apart, and twisting out the severe pain that is asphyxiating.
Lu Bureau crossed his fingers, lowered his head slightly, and shot sharp eyes from the gap between reading glasses:
"You should be proud of Jiang Zhan, Yan Yan, he has sent us the first very important newsletter."
The author has something to say:
The surveillance video has a seemingly bug that will be revealed in the next chapter.
In Lu Bureau's plan, Yan Mao would never find blood in his home, so he wouldn't spray Luminol at home. Rinsing blood with bleach is to prevent in advance the technical investigation of the provincial department to take Luminuo to search Yan Yan's home in case of accident, so bleach is not a bug in Lu Bureau's plan, Yan Yan's wolf-like nose is (＾ -＾) v2k novel reading network