Zhou County is located on the outskirts of Ningyang City. It is a very small county. It is more suitable to call it a village. It takes an hour and a half to drive there.
Sitting in the car, Han Bing briefly explained the case to Wang Gang.
A month ago, a murder occurred in Zhou County. The deceased was a woman in her early twenties. She died in her own home and was accidentally discovered by a neighbor.
The deceased was disheveled when he died, with many bruises all over his body and signs of rape. The cause of death was suffocation.
Because of its egregious nature, the local police station transferred the case to the Criminal Police Team and assigned it to Han Bing.
Due to the shortage of manpower in the criminal police team, although Han Bing is the leader of the action team, he actually also has to take care of investigation responsibilities.
After Han Bing's investigation, the suspect was initially pointed at the deceased's cousin Zhou Qing.
Because some witnesses said that on the day of the incident, Zhou Qing went to the deceased's home and had a conflict with the deceased.
When Han Bing wanted to arrest someone and come back for interrogation, he didn't expect Zhou Qing to leave Ningyang first, which was very consistent with the sign of absconding in fear of crime.
The person ran away and the case reached a deadlock. Han Bing could only ask the local police station to cooperate. If Zhou Qing was found to have returned to Zhou County, he would immediately notify the criminal police team.
At the same time, Han Bing also asked the railway department to cooperate in finding Zhou Qing's whereabouts. However, due to the technology of the times, it was difficult to find someone. If Zhou Qing forged his identity and fled to another city, it would be even harder to find someone.
Wang Gang now understands why Han Bing has such a bad temper. The criminal police team faces vicious cases all day long, faces the evil of human nature, has long working hours, low wages, and faces pressure from all aspects when handling cases. It can adapt to a lower emotional intelligence.
Not coming.
After the car arrived in Zhou County, the local police station sent people to pick them up and took Wang Gang and others directly to the downstairs of Zhou Qing's house.
According to a neighbor's report, Zhou Qing returned home at eight in the morning and has not been out since. The police at the police station were worried about alerting others, so they sent people to keep an eye on him and did not dare to break in rashly.
Wang Gang felt strange. Logically speaking, after killing someone, he had already escaped, so why would he go home? Or should he go home in full view of heaven? Aren't he afraid of being seen?
Han Bing didn't care so much. He called people, took his gun, and forced open the door of Zhou Qing's house.
Wang Gang rushed into the house and found that the suspect Zhou Qing was leisurely eating fried noodles at home. When he saw a large group of police rushing in, he not only did not run away, but also shouted.
"Who are you and why did you break into my house?"
Han Bing pushed Zhou Qing to the ground without saying a word.
Wang Gang felt that Han Bing was a little reckless, but seeing the accustomed expressions of his colleagues around him, he fell silent.
"Bring the person back to the team for interrogation."
Han Bing greeted two people, picked up Zhou Qing and took him away.
"Why are you arresting me? Help me! Someone has kidnapped me." Zhou Qing was arrested and was struggling fiercely and yelling.
"Shut up, don't you know why I'm arresting you?" Han Bing said to Zhou Qing impatiently.
Zhou Qing was taken into the car and then headed to the criminal police team.
In the criminal police team, Han Bing interrogated Zhou Qing personally, but Zhou Qing always said that he was wronged and did not kill his cousin Li Yuanyuan, and he only learned that his cousin was dead today.
?In the past month, he was not absconding out of fear of crime, but was on a business trip for work.
Wang Gang borrowed the case file from his colleagues, and after reading it for a while, he called Han Bing out of the interrogation room.
"Xiao Wang, why did you call me out?" Han Bing searched for a long time and found nothing. He was suffocating in his heart.
"The guy inside is too tough-mouthed and refuses to explain."
"Team Leader Han, is it really not him who killed Li Yuanyuan?" Wang Gang asked.
"Maybe it wasn't him. Li Yuanyuan never had any grudges with anyone during her lifetime. Someone also saw her arguing with the suspect Zhou Qing on the day of her death. Zhou Qing loudly said that he wanted to kill her," Han Bing said:
"He has a tough mouth. If you give me a few more hours, I will be able to pry his mouth open."
Wang Gang pondered for a moment, opened the file, and said to Han Bing: "When the victim was found, was there half a nail fragment left on her neck?"
"Yes! Isn't it written in the case book?" Han Bing frowned and said, "You called me out just to ask this?"
Wang Gang explained: "The deceased died of suffocation. There were obvious strangulation marks on his neck. He should have been strangled by the murderer and suffocated to death. I have reason to suspect that the half of the nail belonged to the prisoner."
"I know!" Han Bing said unsurely: "What do you want to say?"
"When I just arrested him, I found that the nails on all ten fingers of Zhou Qing's hands were intact." Wang Gang said seriously: "He may not be the murderer."
Han Bing blinked, looked at Wang Gang as if he were a fool and said, "Don't you know that nails will grow back? It's been a month since the incident, and the broken nails will also grow back.
ah."
Wang Gang sighed and said: "Whether the criminal police team still retains the half of the armor, take it out and compare it with Zhou Qing, it will be clear."
Han Bing looked at Wang Gang with an even weirder look.
"Comparing nails, what are you comparing?"
"Compare the nail texture!" Wang Gang said in surprise: "The vertical lines on everyone's nails are different, just like fingerprints, unique."
Han Bing said in surprise: "Why didn't I know about this?"
Wang Gang reacted instantly. It was only 1978, and no one at home or abroad had a unique concept of nail texture, and no one had applied it in investigation.
"Team Han, we have vertical lines in our nails. If you put it under a microscope, you can see about a hundred fine lines densely packed together.
These textures vary in thickness and spacing, just like fingerprints, they are all unique. Just cut off Zhou Qing's nails, put them under a microscope, and compare them with the half of the nail, and you will know."
Han Bing hesitated and said, "Is it possible? I've never heard of cases being handled this way."
Wang Gang said confidently: "Are I right? Just find someone to experiment with. You can find more people's nails to compare."
Han Bing was dubious, and then consulted with Team Chen. It turned out that Team Chen had never heard of nail texture, so he called Wang Gang over.
"Xiao Wang, is the nail texture you mentioned reliable?"
"Whether it's reliable or not, you'll know after an experiment. It won't waste much time anyway." Wang Gang said with a smile.
Team Chen asked again: "How did you discover that the nail texture is unique?"
Wang Gang said: "I discovered it accidentally when I was painting my nails."
When Team Chen heard this, he became even more upset. He always felt that Wang Gang was a bit unreliable.
Wang Gang also knew that there was no precedent for this matter and it would be difficult to get Team Chen to support it.
"Captain Chen, if you are in trouble, just pretend that I didn't say anything. It's just that murder is a very serious crime after all. We don't have evidence of Zhou Qing's crime now, so it's not wrong to give it a try!"
Captain Chen gritted his teeth and said, "I want to discuss it with the superiors first. I can't guarantee whether it can be done."
Wang Gang turned to look at Han Bing and said: "Captain Han, did you check the people around the deceased Li Yuanyuan, especially those with broken nails?"
"Of course there is." Han Bing said firmly: "It's just that no one Li Yuanyuan knows has broken armor."
Wang Gang asked again: "Is there anyone who has just had their nails cut?"
Just as Han Bing was about to say no, he suddenly remembered that the neighbor who originally identified Zhou Qing seemed to have his nails trimmed.
"There is one person, but I have seen his nails, and they are not consistent with the broken nails."
Wang Gang smiled and said: "The nails can be trimmed, but the texture cannot be changed."
Han Bing said gloomily: "I will take the person back to the team for interrogation immediately."
"Bring more people with you." Captain Chen looked at Wang Gang's determined look and said uneasily: "Remember to bring a gun."