Eight o 'clock in the evening, at the back door of the park.
"Bah, this pervert!" Li Hui spat.
Han Bin shrank back. "Watch your saliva."
"Do you think this Zheng Wen actually hid such important evidence?" Li Hui was a little exasperated.
"This was a big blow to her. She probably didn't notice it at the time, and it was hard for her to talk about it later."
"There's someone in the park."
Han Bin and Li Hui stood at the entrance of the park with a stack of photos in their hands.
After processing by the technical department, they obtained some frontal photos of the suspects. More images were still being processed. Some of the images were probably hard to see even after processing.
There were lights next to the entrance of the park, so they could see the people coming in and out clearly. Otherwise, the images would be even more blurry.
When they saw the people in the photos, they would stop and ask them, recording their names, identities, phone numbers, and fingerprints.
Even if it wasn't the person in the photos, they would routinely ask if there was anything unusual on the night of the crime.
Although this work was not tiring, it was a tedious job that had to be done with his mouth.
Zhao Ming and Tian Li did the same at the front door.
Several days passed.
The four of them searched the park and found more than twenty men who had committed the crime. Although there were clear images of some of the men, they hadn't been to the park recently. Their information could be found on the public security network.
It was another afternoon. Han Bin was taking a lunch break in his office.
"Slap slap …" There was a series of slapping sounds. Zeng Ping called out to everyone. "Gather here."
"Captain Zeng, are you going to the park again?" Li Hui's tone was low.
"Not today."
"Why?"
"The DNA results are out." Zeng Ping took out a document from his bag.
"Did the database match?" Han Bin asked.
"Yes, the suspect was arrested for causing trouble. This is his information," Zeng Ping said as he turned on the projector and showed the suspect's information.
Name: Chen Jun
Race: Han
Age: 28
Height: 177cm
Job: Qingdao Technology Company.
Family Status: Unmarried.
Address: 6-703, Yuxin Road, Jiangxin District, Qingdao City.
"Captain Zeng, what are you waiting for? Let's arrest him." Zhao Ming rubbed his fists.
…
The group of people drove to Jiangxin District.
He pretended to be a real estate company and tricked them into opening the door.
The suspect, Chen Jun, was successfully arrested.
Chen Jun was a typical otaku. His house was very messy. He lived alone in a rented house.
Han Bin and the others searched carefully, but they didn't find any tools to commit the crime. They brought the suspect back to the police station.
In order to solve the case as soon as possible, Zeng Ping decided to interrogate them overnight.
…
Kojima Substation, interrogation room.
The suspect sat on the interrogation chair. Han Bin and Li Hui were in charge of the interrogation.
Zeng Ping, Tian Li, and Zhao Ming listened through the one-way glass in the observation room.
"Name, age, place of origin …" Han Bin started to ask as usual.
"Chen Jun, 28, from Qingdao City …"
"Do you know why we called you here?" Li Hui asked.
"No, I don't know." Chen Jun shook his head.
"We suspect that you are involved in a rape case. We hope you can cooperate with the investigation."
"How is that possible! I have never done such a thing. "Chen Jun was shocked.
"Last Monday, on the night of June 18th, where were you?" Li Hui asked.
"I don't remember."
"Think about it."
Chen Jun thought for a moment. "I was at home."
"Can anyone prove it?"
"I live alone."
"In other words, no one can prove that you were at home that night?" Li Hui asked.
"Officer, I'm really innocent." Chen Jun shouted.
"Every suspect who entered this room said that they were innocent. Loud voices can't prove their innocence."
"I'm really innocent!"
"Then let me ask you, why did your white genetic material appear at the crime scene?" Han Bin asked.
"Where is the crime scene you mentioned?"
"The street park."
"I have never been to that park."
Li Hui snorted. "Stop pretending. If you have never been to the crime scene, how can you have your white genetic material? It can't be faked."
"I'm really innocent. There must be something wrong," Chen Jun shouted.
Han Bin shook his head. "White genetic material is evidence that can convict you. If you can't explain why it appeared at the crime scene, no one can help you."
"I really don't know." Chen Jun was so anxious that he cried.
…
An hour later, Han Bin and Li Hui came out of the interrogation room.
Zeng Ping went straight to the point. "How was the interrogation?"
"The suspect has no alibi."
"Any new clues?"
"The suspect is very tight-lipped. He only said that he doesn't know." Li Hui sighed.
"The DNA comparison has been successful. It's useless even if he doesn't admit it," Zhao Ming said.
Han Bin thought about it seriously. "Captain Zeng, I think there are still suspicious points in this case."
"What are they?"
"This Chen Jun doesn't seem to be lying."
During the interrogation, Han Bin used micro-expression analysis to observe Chen Jun's every move. He found that Chen Jun was frightened and scared, but there were no signs of lying.
This was not the behavior of a murderer.
Zeng Ping was a little surprised. "Is there any evidence?"
Han Bin shook his head. This was all his analysis.
"Han Bin, the police care about evidence," Zeng Ping said earnestly.
"As long as Chen Jun doesn't have an alibi during the time of the crime and can't explain why his genetic material appeared at the crime scene, he can't be cleared of suspicion."
"Yes."
"Alright, everyone is tired today. Let's call it a day. We'll continue the interrogation tomorrow."
When he returned home, Han Bin was still thinking about the case.
Was there an error in micro-expression analysis?
Or was there another murderer?
With this question in mind, Han Bin slowly fell asleep.
…
The next morning.
Huayuan District, Room 1201.
After getting up, Han Bin washed up, changed into a clean suit, and went downstairs for breakfast.
Han Bin's parents also lived in this building, Room 601.
Han Bin's father was Han Weidong. He was also a police officer, working in the Guang 'an Police Station.
His mother, Wang Huifang, was retired and stayed at home.
Han Bin entered the house and saw his father sitting at the coffee table, drinking tea and reading the newspaper.
"Dad, haven't you read enough at the police station?" Han Bin said with a smile.
"What do you know? One is never too old to learn. I'm learning national policies and actively responding to the call of the country."
"Where's my mother?"
"She went to the market to buy groceries."
"What are we having for breakfast?" Han Bin yawned.
"Go and wash your hands. I'll get you some rice."
"I get this kind of treatment?" Han Bin was a little flattered.
"Your mother said that you detectives are busy with your work, and she wants me to support you." Han Weidong snorted.
Han Bin laughed and said, "Mom, you're so smart."
"Show off."
Han Bin washed his hands and went to the dining room. There was a plate of egg fried rice, a bowl of corn porridge, a small plate of pickled vegetables and beef on the table.
"The food is not bad." Han Bin was also hungry. He ate two mouthfuls of egg fried rice and seemed to have thought of something. "Dad, is this rice leftover from yesterday?"
"Leftover rice. It has less water content and tastes better when stir-fried." Han Weidong also knew how to cook in his spare time.
Han Bin thought for a while. "Leftover rice? It's not leftover that day. "
"Eat slowly, there's more in the pot." Han Weidong said and went back to the living room to read the newspaper.
Han Bin ate a few pieces of beef and finished the egg fried rice. He did not eat the corn porridge and rushed to the police station.
He had a theory that might explain why the suspect's genetic material appeared at the crime scene …
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