Notes From A Criminal Investigation 7 Chapter 52

He stood in the yard, looked up at the sky, and suddenly shrank his neck and said, "Why do I feel like someone is staring at our yard from the dark, observing our every move, and taking away Zhou Tao's semen and cigarette but.ts."

Zhang Xiaoshu said: "There are tall buildings all around the yard, it's not difficult for them to look down on our yard, and it's not difficult for someone to deliberately observe us."

There are countless stars in the summer night sky, twinkling quietly in the darkness. When the night wind blows, the leaves inside and outside the wall make a rustling sound.

Owen took out a cigarette and smoked it slowly in the dark, thinking silently. After finishing the cigarette, he said to Zhang Xiaoshu: "I want to ask you a medical question. Is sperm still active after leaving the human body? Can the time of ejaculation be detected?"

Although Zhang Xiaoshu is a medical student, she still blushed when her beloved suddenly asked her a sensitive question. Blushing, she still answered seriously with a scientific attitude: "It depends on the external environment. For example, the current temperature, sperm can only survive for a few hours. It can survive in the female vag!na for at least 10 hours, and in the uterus and fallopian tubes for two or three days. Do you mean to determine the time of the crime by checking the activity of semen? This is quite difficult, and the situation is very complicated. It is probably difficult to analyze it. And it is useless to analyze it. As long as the semen is Zhou Tao's, no matter how active it is, he can't get rid of suspicion."