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It was nearly midnight, and the light in Qiao Zhen's room was still on. The stalemate of the case made people uneasy and even anxious, and when she returned to the apartment after working overtime, she leaned on the dining table and drank a large glass of water, only to remember that she was almost inadequate during the day, and until now, the brain nerves are still running at high speed, and they can't stop for a moment. Of course she understands the truth that "work is not the whole of life", but she just can't stop.

She worked there for almost eight hours straight, looking for traces that might have been missed, examining every spot for hair, fibers, glass, metal, dander, and suspicious human tissue...... A wide variety of trace substance traces. Fortunately, the victim's family took into account that the child was going to take the high school entrance examination, so they moved out of this "murder house" after the incident and moved to live temporarily near the child's school.

This provides irreplaceable favorable conditions for evidence protection and investigation work, and the traces of the scene are almost intact except for a few footprints that have been added sporadically. If the technician sent by Zhang Chenzhi agreed with the expected candidate, it was not Shi Yan, but Chen Shijie. Near noon, he climbed into the window through the outer wall, raised his voice an octave, and told Qiao Zhen excitedly: "Guess what I found?" A new set of footprints, the location is very hidden, and it is reasonable that they were not surveyed last time. ”

Indeed, the evidence at the scene is jumble and dizzying, and it is not surprising that it is quite possible that some important information is naturally overlooked without making any mistakes.

Qiao Zhen also made a new discovery, and couldn't hide his smile and wanted to share it with him, but this excitement was quickly frozen by Shi Yan's cold call: "Why don't you call me to join you at the re-inspection site?" ”

"It's not my arrangement, and I don't know who I'll send beforehand."

"You knew you were coming, weren't you discussing work when I went to Team Zhang that day?"

It was a tricky question, and if she admitted the truth, she would have to bear the joint and several responsibility for not calling her on the scene, and if it wasn't for work, her subtle look at them that day unabashedly exposed her suspicions.

When Qiao Zhen hesitated how to answer, Shi Yan told her: "The DNA comparison I mentioned that day, the results are out. ”

"Yes, are there any suspicious objects?"

Shi Yan replied with some frustration: "The police officer at the police station didn't hold back his vomiting at the scene. Another clue was ruled out. ”

"So, will you come over?" Qiao Zhen's plan to compare the fiber with DNA failed, and he asked hesitantly in frustration.

Shi Yan replied coldly: "The leader has no arrangement, I don't need to force this case, there are other things at hand." I'm going to tell you about it. ”

Qiao Zhen thanked her and hung up the phone. She originally wanted to announce the discovery loudly, but at this moment, in the face of Chen Shijie's inquiring eyes, there was only a simple and calm statement: "The murderer was also injured at the scene." ”

Chen Shijie looked around in surprise for traces, and at the same time asked, "How can you see it?" ”

Qiao Zhen pointed to the floor drain in the bathroom drain with his gloved fingers: "There are blood samples here that have never been collected. ”

"Last survey, I saw that the technicians here have also checked."

"But I only missed the blood droplets here," Qiao Zhen carefully lifted the floor drain and pointed at the stainless steel gap with his hand, Chen Shijie leaned over and squinted his eyes to take a closer look, there was a coagulated residual blood that was barely visible to the naked eye.

"Last time, Team Zhang portrayed the murderer, saying that he was a young man, very likely to commit the crime for the first time, an acquaintance of the deceased, and also knew the surrounding terrain, but now he can add two, his arm strength is relatively large, and he was also injured in the process of committing the crime." Qiao Zhen said.

Chen Shijie was silent for a while, and questioned: "That's not enough to prove that this blood is the murderer, right?" ”

Qiao Zhen quickly retorted and explained: "You see, first of all, judging from the corpse spots of the deceased Zhang Qin, she has not been moved, which can also be confirmed by her son's words, and secondly, Zhang Qin's family is not injured, I asked, Zhang Qin's daughter-in-law is not in the menstrual period, so the blood droplets that droop and drip are not the blood spurted by the deceased, and there will be no second person bleeding in this position." ”

"Then since you said that he hid in the bathroom after committing the crime, then it is very likely that he even treated the wound here, with his panic psychology when he committed the crime, it should be too late to deal with the traces left behind, why are there no other marks?"

"Of course, he didn't have time to deal with the traces he left behind, and the problem was that his biometrics were overwritten by latecomers."

"Shi Yan has news there?"

Qiao Zhen nodded: "He cleaned the wound in the pool, and then wiped the faucet out of common sense, but unfortunately, the physiological traces he left on the wall of the pool were confused by the DNA cover that our police vomited later." ”

"So, it's likely that the path he escaped was not through the door, but through the bathroom window?" Chen Shijie's eyes lit up and he looked out the window.

Qiao Zhen smiled and nodded, before, they actually missed this cluttered and inconspicuous corner, just because Zhang Qin's son said that he heard a sound in the corridor, but there was no one in the bathroom. And now it seems that the footsteps in the corridor are likely to be just passing neighbors, and it is precisely the bathroom without sound that is the real escape path of the murderer.

From the third floor, the ceiling height is not chilling, not to mention the large podium, which is an outdoor patio connecting the two buildings, which is covered with various household debris covered in plastic film, and there is room to settle down. It's a great place to hide in the night. However, for suspects, it is not so easy to remove traces such as footprints and palm prints.

"Perhaps, he didn't expect that this place is simply a paradise for our evidence technicians." Chen Shijie rubbed his hands and was eager to try.

When Shi Yan came out of the room, quietly, Qiao Zhen, who was immersed in the thoughts of the day, smiled and recalled the joy when the two of them found hidden traces, and suddenly saw Shi Yan in a white dress standing in front of her, looking at herself coldly, so shocked that a mouthful of water almost didn't spray on her face.

"Don't scare me, okay? In the middle of the night. Qiao Zhen covered her chest, she thought Shi Yan was asleep, she had always had the habit of going to bed early and getting up early.

Shi Yan saw that her face had changed, and she wanted to apologize but couldn't help but tease: "People who don't change their faces when they go out of the scene, with this psychological quality, they shouldn't be." ”

"You're not waiting for me, are you?" Qiao Zhen came back to his senses and asked.

"You're thinking too much." Shi Yan refused to admit it, she knew Qiao Zhen, if she didn't gain anything today, she would definitely spend the whole night on the scene, "It seems that you are already confident?" ”

"It's not about that, it can only be said that there is progress." Qiao Zhen told her everything he had found and the evidence he had obtained.

After hearing this, Shi Yan changed the topic: "Didn't Team Zhang go to the scene?" ”

"He probably has other jobs, he didn't go, what's wrong?"

Shi Yan turned around to pour water, and said in a casual tone, "Isn't he always there where you are?" ”

Qiao Zhen calmed down, it seemed that she was going to discuss this topic today, she told herself not to avoid it anymore: "What you saw that day was not what you thought. ”

Shi Yan turned around, looked into her eyes, and asked word by word, "What do I see, and what do I think?" ”

"If you say you still like him and keep me at arm's length from him, then I can do it."

"He, who do you think he is for you?"

Qiao Zhen looked at Shi Yan, who was smiling, and the nameless fire suddenly burst out: "Don't you think you're speaking aggressively?" For the sake of a man, there is really no need to ruin the relationship between you and me. ”

"Have you considered my feelings?"

"What did I do?"

"What you should be asking is what you didn't do. He courted you, approached you, protected you, did you refuse? ”

"Did he do that? Well, even if he really did it, but I didn't notice it at all, how could I refuse? ”

Shi Yan was speechless, but the anger in her eyes couldn't be stopped. Qiao Zhen understood that she was angry with her Mu Zhi Mu Jue, but she was indeed an innocent party, why should she suffer the harm of this nameless jealousy?

If before her first marriage, she would endure it again and again, and even didn't want to bother to explain, trying to let time resolve everything, but when she got out of the siege, she knew better that there are some things that time will only make them deteriorate, and she will never go back to the past. That's the price to pay for it.