Yingying was stunned for a moment and said politely: "This is already home, so I'll eat it at home."

Nancy smiled and said, "We're shopping. I've just arrived in Shanghai. I don't know where to go. In such a big city, I'm scared to kidnap my local buns from Nanyang. Just think of helping me, a local girl?"

This cousin is fashionable, fashionable, and he speaks so much. Yingying likes her very much and nods and says, "Okay, let's go out for a walk first. When did the cousin arrive?"

"You'll call me Nancy. I'm not a few years older than you. I'll be sad when I call you aunt. I just got off the boat yesterday. Shanghai City is so big."

"Okay, Nancy." Yingying corrected immediately.

At the same time, Xu Mei walked out of the laboratory with a transparent cup, her feet floating and her expression was dazed. Xiao Wu happened to go to the physical evidence department and saw her coming towards her, she asked, "Miss Xu, what's wrong with you?"

Xu Mei was slightly stunned for a moment, and showed a smile. She pressed one temple and said, "Maybe she has not had a good rest recently, so she has a headache."

"Miss Xu, are you going to drink water? I'll pour it for you."

Xiao Wu saw the glass in her hand and wanted to take it and pour water for her.

Xu Mei hurriedly put her hand holding the teacup behind her: "I won't drink water."

"Then this cup?"

"I just find a cup, I'll leave first, and the archives and old files need to be sorted out."

Xu Mei left in a hurry. Xiao Wu looked at her back, shook her head, walked a few steps in the direction she came, and looked up. The laboratory next to the physical evidence department was the laboratory.

Xiao Wu pushed the door and entered the laboratory. Forensic Xiao Chang was sitting aside and writing something on the notebook.

"What is Miss Xu doing? Do you have old physical evidence that needs to be inspected?"

Xiao Wu asked.

Xiao Chang raised his head: "Ah, you said Miss Xu."

She said, and raised the notebook in her hand: "I am busy writing reports here, and Miss Xu operated it myself."

"What's wrong? I haven't heard of anything to be tested?"

"Oh, she said to check the water quality at home and take a cup to check it."

Xiao Chang came over and looked at the test bench and said, "Ms. Xu is very cautious in doing things, the operating bench is clean, I don't know what she was looking for just now."

Although I don’t know what Xu Mei came to test, Xiao Wu can be sure that it must be related to the glass cup.

Xiao Chang leaned his head and looked at the pool: "There is still some water here. What kind of water is this? It looks like... a little milky."

It turned out that Xu Mei had just poured the test stuff into the pool next to her. It happened that the plug under the pool was not pulled out today. Xiao Chang lit it in the little water with his hand and smelled it again: "It just smells a little milk. I remembered that the cup Miss Xu brought was not clean, so it was a milk cup, should I test for milk?"

"Test milk?"

Xiao Wu looked at the faint milky white water in the pool and frowned slightly.

"Hey, Officer An, why did you think of asking this?" Xiao Chang asked.

"I just saw Miss Xu looking a little dazed, and I thought something big happened."

"It's okay, Miss Xu is a medical student. She used to be a forensic assistant. She might just want to test the milk for a while."

Xiao Wu walked to the physical evidence department next door, carefully checked the label on rows of shelves. Finally, he stopped in front of a cardboard box, picked up the box, and opened it on the table. It was the physical evidence of the two cases in July thirteen years ago and the murder of Qin Su'e in August. Because Director An combined them at that time, the physical evidence was put together.

Nothing was collected in the two scenes in July, because they were born outside or on rainy nights, and the traces at the scene were basically destroyed. In Qin Su'e's case, because the case was at home, the police extracted several footprints and judged that they were footprints of leather shoes. The weapon that killed Qin Su'e was not found. There was also a bloody dress in the physical evidence, a white silk nightgown, a slightly exposed style, with a large piece of blood on it, and it was hard and black. It can be imagined that the scene was very bloody at that time. Qin Su'e was killed in this nightgown. At that time, her daughter was sick, and she slept in the same bed with her daughter for easy care.

Xiao Wu didn't find anything in the cardboard box, so he put it in it and talked about the case with the old man Li who was looking at the room.

The old man Li is in his fifties and has a strong back and a strong waist. He speaks with great energy.

Xiao Wu said: "Old Li, you shouldn't have come to see the physical evidence room, you should go to patrol the streets."

"Haha, Officer An, you are underestimating our physical evidence room." Old Li stretched out his fingers and lowered his voice and said mysteriously, "Not everyone can stay in this room. Some people are watching here, and they have become adults in less than two years."

Xiao Wu felt strange: "Why is this?"

"I'm so resentful. Ninety of the 100 items here are all physical evidence of murders, things used by dead people, bloody clothes, knives, axes, sticks, etc. These things are too evil, and there will be various movements at night. Most people really can't calm down this thing."

Xiao Wu thought of the shop in front of Weihan, and felt aggrieved. He nodded repeatedly, and at the same time stretched out his thumb and said, "Old Li, you are really amazing."

Old Li smiled honestly: "We just do our duty well. In fact, we can't blame them for the heavy yin energy in this room. They are not easy to die. Many people will never be able to get sick after being upset. They are still frustrated when they are alive, so of course they have to cause trouble."

"Yes, so I'm working hard to investigate the old cases now, trying to find out more old cases, catch the murderer, and comfort the victim's spirit in heaven."

"There are too many old cases, and most of the ones that can be found in your hands are recorded. Some cases are too small, and the dead are irrelevant. If you die, you will die. No one cares at all. The broken mat is buried in one roll."

"Haha, Lao Li, your words are a bit like the good song of Dream of Red Mansions." Xiao Wu said.

"What's good? I don't understand. Take the physical evidence of the cases you just saw. Those three women were killed. Oh, there were five, and there were two in the first year. Everyone in the city knew about it. In fact, the fourth one died shortly after they died. Someone died nearby. They were beggars, and they couldn't tell whether they were beggars or wanderings. Anyway, that's it. Later, the investigation said that they died after eating moldy sugarcane. If they died, they died. There was no difference between a homeless man and a dead dog on the street. Look, they were different from those women. Those women could still be reported to the case and left some physical evidence."

"Sugarcane, do you say that person died after eating moldy sugarcane? What kind of person is that?"

When Lao Li saw Xiao Wu's eyes lit up, he was a little confused.

"What kind of person can be like a wandering person? He has a long beard and can't see his appearance clearly. He doesn't know where to steal raincoats. I heard that he is wrapped in a torn raincoat all year round, blocking snow in winter and rain in summer. I remember clearly because I was a patrolman at that time. I happened to meet him. The man was nestled in the corner of the wall, covered with a torn raincoat on the ground, vomiting all over the floor, and there was still half of the sugarcane that had not been eaten by it. The sugarcane was black. I don't know who was so unintentional, and he gave him moldy sugarcane."

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