Reborn in 97, I solved a cold case at the Municipal Bureau

Chapter 7 Testing
The other party asked the question out of the blue, which made Zhou Yi slightly stunned.

But he immediately replied, "Provincial Public Security Police Vocational College."

"Oh, Provincial Police College, what do you study?"

The old policeman's tone was very casual, completely different from before, as if he had already believed Zhou Yi's identity.

But Zhou Yi immediately became alert, thinking that something must be wrong when something was abnormal.

"Criminal investigation."

"Really? Hey, I have a classmate who teaches at your Provincial Police High School. His name is Xing Jian. Do you know him?"

Zhou Yi immediately nodded to show that he knew him and wanted to see what he was up to.

"We haven't seen each other in years. Is he still teaching criminology? How's his relationship with his wife? He was talking about divorce when he was drinking."

After hearing what the other party said, Zhou Yi finally understood that he was testing me.

Zhou Yi said frankly, "You may be a forgetful person. Professor Xing teaches criminal law, not criminology."

"Really? It seems I remembered it wrongly." The old policeman said in surprise.

"One more thing, maybe you remembered it wrongly, Professor Xing is a woman. As for her relationship with her lover, we students don't know about it."

The old policeman's reaction this time was very calm. He took a puff of his cigarette and said calmly, "Really? Look at my memory."

Zhou Yi knew that this answer would basically dispel the other party's suspicions, because this kind of information was not something that could be easily obtained.

But Zhou Yi inferred that the other party would not rule out the suspicion of murder because of this, and the old criminal police had a very strong investigative awareness.

As expected, the other party said, "Since you are also a police officer, you should know the rules. Even if your identity is confirmed, we still have to detain you for 24 hours, and you cannot leave Hongcheng after that. After all, you appeared at the crime scene."

Unexpectedly, Zhou Yi said directly: "I understand the regulations, but usually the reason for detaining someone for 24 hours is because there is no clear evidence to rule out a criminal suspect."

"We will verify everything you just said. But even if your family and the hospital staff confirm what you said, it doesn't mean that you are not a suspect."

"You have to know that you were arrested near the crime scene, with a large amount of blood on your body. The most important thing is that no one can prove what you said happened at the scene."

"Without a witness, what you said is just one side of the story."

The old policeman said this seriously, his expression and tone returning to what they were before.

"There are no witnesses, but what if there is physical evidence?"

"What?" Zhou Yi's words stunned the old policeman.

Just then, there was a knock on the door of the interrogation room.

"Captain Wu, I'm Xiao Xu from the Forensic Department."

A young woman's voice sounded outside the door.

Hearing this somewhat familiar voice, Zhou Yi's heart suddenly skipped a beat.

Could it be...

The old policeman stood up and opened the door. The warm yellow corridor light shone on the clean white coat of the young woman at the door.

If his hands and feet had not been handcuffed, Zhou Yi would have stood up excitedly.

I never expected to meet her under such circumstances.

Xu Nian, the youngest forensic doctor in the city bureau, is his first love.

Xu Nian reached out and tucked the hair at his temples, then handed over a document.

"Captain Wu, this is the preliminary autopsy report. Please take a look."

Hearing Xu Nian shouting this, Zhou Yi finally knew who this shrewd old policeman was.

Wu Yongcheng, deputy captain of the Criminal Investigation Detachment of Hongcheng Public Security Bureau.

He had heard of this man's name when he was a young policeman. After all, for him at that time, he was already an unattainable person.

Later, when he was transferred to the Criminal Investigation Detachment of the Municipal Bureau, Wu Yongcheng had already been transferred to another city to take up a post.

So before rebirth, the two had never met.

However, Zhou Yi had seen Wu Yongcheng's name many times in the files of the 316 case, because he was the one who was responsible for investigating this unsolved case.

Wu Yongcheng thanked him, took the report handed to him by Xu Nian, opened it and started reading.

Xu Nian glanced into the interrogation room and happened to meet Zhou Yi's eyes.

She was just taking a casual look, but she didn't expect the suspect inside to be staring at her, which made her feel a little strange.

Zhou Yi suddenly had an idea and immediately shouted, "Captain Wu, this autopsy report is the physical evidence that proves I am not the murderer." This sentence immediately attracted the attention of the other two.

Wu Yongcheng looked back at him with a stern look in his eyes: "Where? How come I didn't see it?"

"How about you show me the report and I'll explain it to you?"

Of course Zhou Yi had read this report, but it was in that cramped data room more than 20 years later.

But he couldn't say anything about the report now, otherwise there would be no explanation.

Therefore, he needs to let the other party take the initiative to tell the information in the report.

"Are you kidding me? I can show you a suspect in the case file?"

"You don't have to read it. I only need to ask four questions to prove my innocence."

Zhou Yi said this with such confidence that Xu Nian, who was about to leave, stopped and looked at him curiously.

She wanted to see how the other party would use the autopsy report she had produced to prove their innocence.

Without waiting for Wu Yongcheng's agreement, Zhou Yi immediately asked the first question.

"How did the deceased die?"

Wu Yongcheng hesitated for a moment and replied, "Knife wound."

He also wanted to see what the other party was up to.

"How many?"

"Six swords."

"Which knife was the fatal wound?"

Wu Yongcheng and Xu Nian were both shocked. This question was too professional.

Xu Nian looked at Wu Yongcheng, and when she saw him nod slightly, she spoke.

"The wound on the left carotid artery is 45 centimeters long and centimeters deep. The insertion angle was degrees."

Zhou Yi nodded and didn't say anything else.

Wu Yongcheng waited for a moment, and when he saw that he was silent, he immediately asked, "What about the fourth question?"

"No need. The medical examiner has already addressed my fourth question."

"So where is your proof of innocence?" Wu Yongcheng asked with a frown.

"The pressure in the human carotid artery is very high. If the carotid artery ruptures due to trauma, blood will spurt out."

Xu Nian nodded. His carotid artery ruptured and blood could even spurt out more than one meter away.

"And from the angle of stabbing, we can definitely infer the relative positions of the deceased and the murderer when the knife was stabbed."

Zhou Yi pointed at himself and said, "Except for the blood on my hands that was stained when I tried to bandage the victim's wounds, the blood on other parts of my body was caused by injuries during the fight with the murderer. You just need to take samples and test them, and you will know whether what I said is true or not."

"It's impossible for the murderer to commit a crime without a drop of the victim's blood on his body in order to create such a wound."

"This is my best proof of innocence!"

Just a few words shocked Wu Yongcheng. This guy's thinking was very clear and precise, and this kind of analysis angle was not something that ordinary people could think of casually.

"Ahem, Xiao Xu, can you please excuse me for a moment?"

Wu Yongcheng walked out of the interrogation room and closed the door.

Outside the interrogation room, Wu Yongcheng asked, "Xiao Xu, do you think what he said makes sense?"

Xu Nian nodded: "He is right, and it is basically in line with the logic of the facts."

"Is it possible that the murderer cut the victim's carotid artery without getting any blood at all?"

"Yes." Xu Nian's answer made Wu Yongcheng's eyes light up.

But Xu Nian immediately added, "If the victim completely lost the ability to resist and the murderer took protective measures, then blood stains could be avoided."

Wu Yongcheng was suddenly speechless. It was the same as not saying anything.

Just then, the young policeman came running over in a hurry, holding a fax in his hand.

"Master, the identity of the deceased has been confirmed."

"In addition, the identity of this kid has also been confirmed."

(End of this chapter)