The next day.
East City.
Jinye District.
Zheng Ziying lived here.
Li Ze and his group drove to the entrance of the neighborhood and saw the security guards.
"Wu Kang, check the surveillance cameras."
"Xingyu, bring some people to visit the owners of the residential area and see if they saw Zheng Ziying on the day of the crime.”
"Yes, sir! Captain."
After giving the order, Li Ze brought the technical team into Zheng Ziying's house.
There were two bedrooms and a living room. The room was very clean and had a faint fragrance.
Li Ze put on his gloves and shoe covers. After scanning the layout of the room, he said,"Let's get to work."
"Yes, sir!"
Song Shirou, Xia Zirui, and the others spread out and began a thorough search of the house.
Li Ze started to stroll around the living room.
He went to the TV cabinet and picked up the photo frame.
In the photo, there was a man and a woman. Their appearances were somewhat similar.
The man was handsome, and the girl was naturally beautiful.
Both of them had smiles on their faces.
Zheng Zhe.
Zheng Ziying.
Unfortunately, Zheng Zhe had passed away.
As for Zheng Ziying…
Li Ze shook his head and returned the photo frame to its original position.
Time slowly passed.
Unknowingly, Li Ze came to the study.
Xia Zirui and a few police officers were busy working.
This place should be where Zheng Ziying worked and rested all year round.
If there were any traces, this was the most likely place.
"Captain, here you go."
Seeing Li Ze enter, a police officer stood up and handed a book to Li Ze.
Li Ze took it and flipped through it before nodding slightly.
This book was also part of the evidence chain.
"Keep it."
"Yes, sir!"
Li Ze came behind Xia Zirui and said,""How's the investigation going?"
Xia Zirui, who was doing a detailed examination, said,""I haven't found anything yet."
Hearing this, Li Ze looked up at the curtains.
It was closed.
"Are the curtains always closed?"
" Yes, Captain," one of the officers said." It's been closed since we came in. Xia Zirui won't let us open it."”
Li Ze looked at Xia Zirui approvingly and said,""Very smart."
This was Xia Zirui's strength.
He was very sensitive when it came to trace detection.
Xia Zirui, who was busy, raised his head and said with a smile,""Captain, you rarely praise me.”
"To test for the residual of methichlorane?" Li Ze asked with a smile.”
" Yes," Xia Zirui nodded." Didn't you say that Zheng Ziying could make her own pheromone?"”
"Then her study is the most suspicious.”
"And the curtains are closed."
"Who closes the curtains in broad daylight?"
"Since she's been avoiding light, Zheng Ziying probably rarely comes in after committing the crime.”
"Well said, but…" Li Ze smiled even wider.
"Hmm?" Xia Zirui was confused." But what?”
Li Ze pointed to the ground and said,"You should try gas chromatograph."”
"To accurately detect the residue and decomposition of the steroid, gas chromatograph is the most suitable method.”
Gas chrommatography was a analytical method that used gas as the mobile phase.
It was widely used in the identification and analysis of chemical compounds.
However, not many people knew how to do it.
Li Ze knew that Xia Zirui had mastered this technology, but he rarely used it.
Of course, he knew how to do it himself.
"Gas chromatograph?" Xia Zirui was stunned for a moment, then his eyes lit up." Right, I almost forgot. I'll start right away!"”
……
Two hours later.
Everyone left the neighborhood.
In Li Ze's hands were the surveillance records of Wu Kang's investigation.
She obtained Bai Xingyu's interview records.
There was also Tong Xuan's copy of the consumption records.
It also included…Xia Zirui's test results.
Wait a minute.
This was a complete chain of evidence.
There were no surprises.
After handing all the materials to Wu Kang, Li Ze opened the car door and said," Let's go to Dongcheng University."
……
11 AM.
Dongcheng University.
This was a key school with a high admission score.
Similarly, those who could become teachers here had to have a minimum degree of a PhD.
The standards for some unpopular subjects could be lowered, but they had to be at least a master's degree.
It could be said that the students who graduated from here could be considered top students.
Not to mention the teachers inside.
It was around the time when classes were over, so there were many students on campus.
Li Ze didn't alert anyone. He quietly showed his ID and entered the campus. He went straight to Zheng Ziying's classroom.
Most of the students had already left. Only a few of them were still asking Zheng Ziying questions.
Zheng Ziying was dressed in a professional suit. Her long hair was draped over her shoulders, and she had a smile on her face. She answered them patiently.
Fu Xiaojun and the others were silent when they saw this.
Li Ze also sighed.”
This was the second time he said this.
If not for Zheng Zhe, Zheng Ziying would be a good teacher.
In the future, there would be countless highly educated talents who would enter society under her guidance.
The best ending for Zheng Ziying was to have a world of peaches and plums.
It was a pity.
There were no ifs.
"Let's wait."
Li Ze said.
"This is her last class.”
Time slowly passed.
When the last student thanked Zheng Ziying and looked at Li Ze curiously before leaving, they walked into the classroom.
Li Ze waved his hand, signaling the people behind him to wait.
He went forward alone and sat in the first row of the classroom. He looked up at Zheng Ziying.
At this moment, Zheng Ziying was packing her desk and laptop.
Zheng Ziying was surprised to see someone come in.
"May I ask…what's the matter?"
Li Ze crossed his hands on the desk and said slowly,""Hello,"
"I'm Li Ze, the captain of the Eastern City Police Department.”
Zheng Ziying's pupils constricted.
……
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