Solving the case: Combining the police dog's olfactory genes at the beginning

"Be careful."

Luo Fei whispered, pretending to help her organize her equipment, but actually slipped a miniature tracker into the collar of her diving suit.

Chen Xuanran put on his diving mask and flipped himself into the water. The surface of the water quickly returned to calm, leaving only a few ripples.

Luo Fei stared at his watch, each second feeling like a stretched rubber band.

Fifteen minutes later, the water finally stirred.

Chen Xuanran surfaced, removed his breathing apparatus, and gave Luo Fei an OK sign.

"everything is normal."

A barely perceptible smile appeared on President Wei's lips as he handed the remote control to Luo Fei.

"Press the red button and the container will float up."

He demonstrated how to use it, his movements as practiced as if he were showing off a toy.

Luo Fei took the remote control and his expression suddenly changed.

"Mr. Wei, I'm afraid you'll have to come with us."

Before he could finish speaking, handcuffs were already on Mr. Wei's wrists.

Zhou Xuan and Zeng Jian acted simultaneously, subduing two of President Wei's men.

"Police! Don't move!"

Luo Fei flashed his ID, his voice echoing across the empty, unfinished bridge.

Mr. Wei actually laughed.

"Officer Luo, I've heard so much about you."

Luo Fei was startled; the other party knew his true identity!

But there was no time to think. Suddenly, countless lights lit up along the riverbank, and a large number of police officers emerged from the bushes.

Police speedboats roared across the river, their searchlights illuminating the entire area as if it were daytime.

"Good job!"

Meng Haonan strode onto the yacht and patted Luo Fei on the shoulder.

"You've done a great job this time!"

Luo Fei did not let his guard down.

"Captain Meng, don't forget what you promised."

"Don't worry, Zhou Xuan and Zeng Jian will start as auxiliary police officers and will be promoted to full-fledged officers if they perform well."

Meng Haonan smiled and looked at the two young men who were holding Wei's men hostage.

Police officers used specialized equipment to retrieve the container from the water.

Two enormous silver spheres gleamed under the searchlight, like two alien eggs.

Drug enforcement experts carefully cut open the outer waterproof membrane to reveal the transparent packaging inside.

"This is."

The expert, wearing gloves, picked up a small piece of the crystal, examined it under the light, and then tasted it incredulously.

"crystal sugar?"

Luo Fei rushed forward, grabbed a handful of "goods," and stuffed them into his mouth.

"Hahaha."

Mr. Wei's laughter came from the guard vehicle, and you could feel his smugness even through the iron bars.

"Officer Luo, is the sale of rock candy prohibited by law?"

Inside the interrogation room, the incandescent light made Mr. Wei's face appear deathly pale.

He leaned back in his chair, his posture as relaxed as if he were in his own living room.

"Wei Chengjun, do you think you can get away with this?"

Luo Fei sat opposite him, his voice cold.

"We have all the evidence against you for manufacturing and trafficking drugs over the past six years."

Mr. Wei raised an eyebrow.

"Oh? Then where's the evidence? My rock candy factory?"

Luo Fei stared into President Wei's eyes and activated his "Genius Eye," a secret ability he never showed to anyone.

A string of information appeared above President Wei's head.

[Wei Chengjun, 42 years old, former special forces soldier, started manufacturing drugs six years ago.] But key details are unclear, especially information about the mastermind behind the scenes.

"Who's behind you?"

Luo Fei suddenly asked.

Mr. Wei was somewhat surprised, but quickly regained his composure.

"Officer Luo has quite the imagination. I'm just a rock candy seller."

Luo Fei's phone suddenly vibrated; it was a text message.

He glanced at it, and his expression changed drastically. Teacher Qin had passed away in the hospital; the cause of death was unknown.

"That's it for today."

Luo Fei got up and left the interrogation room, then dialed the phone number of Cheng Yunchuan from the intelligence department in the corridor.

"Investigate the rich second-generation who killed Qin Yutong back then."

Cheng Yunchuan's voice came through the phone.

"It's been investigated. That person died of a drug overdose last year. By the way, there's a strange phenomenon: the number of drug-related deaths in Jiangcheng has increased tenfold in the last five years."

Luo Fei gripped his phone tightly.

"go on."

"Seven or eight years ago, there was a city-wide anti-drug campaign in Jiangcheng, and drugs were almost eradicated. But six months later, a large amount of high-purity drugs suddenly appeared on the market, and experts speculated that they might be produced locally."

Cheng Yunchuan paused for a moment.

"Also, the Luxiao Group that you asked me to check, all the Hope Primary Schools they donated to build are called 'Huayu Hope Primary School'."

On this day, at the memorial service, Teacher Qin's smile was gentle in the black and white photo frame.

Luo Fei stood at the edge of the crowd, his gaze sweeping over the students who were sobbing with their heads down.

Most of them were dressed simply, some even with patches on their clothes; they were all impoverished students whom Teacher Qin had sponsored during his lifetime.

"Captain Luo, what's wrong?"

Chen Xuanran asked in a low voice, noticing that Luo Fei's fingers were trembling.

Luo Fei didn't answer; his gaze was fixed on the half-open coffin. Through the crack, he saw the deceased's profile—it wasn't Teacher Qin at all.

Although their facial features are similar, the black mole on their earlobe is in the wrong place.

Teacher Qin has a mole on her left earlobe, while the person in the coffin has a mole on their right earlobe.

"Chen Xuanran".

Luo Fei suddenly grabbed his partner's arm.

"Teacher Qin isn't in the coffin."

"what?"

Chen Xuanran was somewhat shocked

"That's impossible, the forensic doctor has already..."

"He is Teacher Qin's younger brother."

Luo Fei interrupted her, his voice low and urgent.

"They switched identities. Teacher Qin didn't die; he's the poison master we're looking for."

Chen Xuanran gasped and instinctively looked around, afraid that someone might have overheard their conversation.

Luo Fei had already pulled her out of the mourning hall and into the police car parked by the roadside.

"you sure?"

Chen Xuanran closed the car door, his voice filled with disbelief.

Luo Fei took out his phone and quickly pulled up a photo.

"Look, this is a photo of Teacher Qin from last year when she participated in a school event. She has a mole on her left earlobe. And the person in the coffin..."

He scrolled to the next picture, which was the inside of the coffin he had just secretly photographed.

"There is a mole on her right earlobe. Teacher Qin has a twin brother who lives in Dongshan Nursing Home and suffers from Alzheimer's disease."

"So Teacher Qin faked her death by using her younger brother's identity."

Chen Xuanran suddenly realized.

"But what was his motive? Why would he make drugs?"

Luo Fei started the car and drove away from the memorial service.

"To avenge her. Not for money, but to avenge Qin Yutong."

"Qin Yutong?"

Chen Xuanran pondered for a moment.

"It's the one from your high school days."

"My classmate is also Teacher Qin's granddaughter."

Luo Fei's voice suddenly became hoarse.

"Five years ago, she was killed in a car accident caused by Jiang, the youngest son of the chairman of Wuzhou Group. That bastard was a drug addict and was driving under the influence of drugs at the time of the accident. Afterwards, his father paid someone to take the blame. The person who took the blame was sentenced to eight years, while Jiang went unpunished."

Chen Xuanran remained silent for a moment.

“I remember this case. At the time, the media reported extensively on the ‘rich second-generation driving under the influence of drugs and causing death,’ but then it suddenly disappeared.”

"Because the Chiang family used money to settle everything."

Luo Fei sneered.

"Qin Yutong's parents divorced as a result, and her mother suffered a mental breakdown and was admitted to a nursing home. Teacher Qin knew the truth, but was powerless to help."

The car drove into the police station parking lot, but Luo Fei showed no intention of getting out.

He turned to Chen Xuanran, his eyes sharp.

"Later, when Jiangcheng launched a drug crackdown, Jiang was unable to buy drugs and was forced to quit drugs. Later, he became the vice president of Wuzhou Group and married the daughter of a certain group, enjoying great success."

"So, Teacher Qin..."

"Teacher Qin saw that he not only escaped punishment but also started a new life, and felt no remorse for Qin Yutong's death." Luo Fei gripped the steering wheel tightly.

"So he decided to take revenge in his own way, using his chemical knowledge to make drugs and make Jiang relapse into drug addiction."

Chen Xuanran gasped.

Therefore, Wei Guofu...

“Wei Guofu was Teacher Qin’s student. Initially, he only helped him distribute drugs. Later, Teacher Qin used the money he earned from drug trafficking to help Mr. Wei invest in pharmaceutical companies and obtain OEM orders as a cover.”

Luo Fei explained.

"Boss Wei also recruited three pilots, who distributed drugs to entertainment venues through Brother Shui and Scarface. The entire network was designed to get the drugs back into Jiang's life."

"Oh my god."

Chen Xuanran covered his mouth.

"That Mr. Jiang"

"Died from a drug overdose, it happened a week ago."

Luo Fei sneered.

"Teacher Qin's revenge is complete."

After a moment of silence, Chen Xuanran suddenly looked up.

"Wait, how are you sure Teacher Qin is the Poison Master? Besides the corpse in the coffin?"

"Wei Guofu was Teacher Qin's student; the case of Qin Yutong and Jiang; the timing of Teacher Qin's 'sudden death'; and more."

Luo Fei took out his phone and pulled up a photo.

"This is the list of sponsors for Dongshan Nursing Home. Wei Guofu's pharmaceutical company is the main sponsor. Teacher Qin's younger brother lives there."

Chen Xuanran's eyes lit up.

"So Teacher Qin might be hiding there!"

"Yes."

Luo Fei finally opened the car door.

"Let's go, apply for a search warrant, and go meet this 'deceased' chemistry teacher."

Three hours later, Luo Fei and Chen Xuanran led a team of police officers to surround the Dongshan Nursing Home.

The nursing home is located on a hillside in the suburbs, in a quiet and peaceful environment.

"Chen Xuanran, take your men and seal off all exits."

Luo Fei gave the order in a low voice.

"I'll go up alone."

"Too dangerous!"

Chen Xuanran objected.

If it really is him

"He won't hurt me."

Luo Fei shook his head.

“We are teacher and student, and I am Qin Yutong’s friend.”

Before Chen Xuanran could say anything more, Luo Fei strode into the nursing home.

He showed his police ID and asked for information about Teacher Qin's brother's room. The receptionist pointed to the far end of the third floor.

"Room 318, but Mr. Qin's condition has not been good recently, and he often doesn't recognize people."

Luo Fei nodded and walked up the stairs alone.

The corridor on the third floor was unusually quiet.

The door to room 318 was ajar. Luo Fei gently pushed it open.

The room was unusually tidy, and an elderly man with white hair was watering a pot of orchids with his back to the door.

The old man did not turn around when he heard the door open.

"Luo Fei, you've arrived."

The old man's voice was gentle and familiar; it was Teacher Qin.

Luo Fei stood at the door, his heart pounding.

“You knew I would come.”

Teacher Qin put down the spray bottle and turned around.

Five years had passed, and he looked much older than Luo Fei remembered, but his eyes were still sharp.

“I knew this day would come from the day you impersonated Li Shun to visit me in the hospital.”

Luo Fei entered the room and closed the door.

"My disguise skills aren't good enough?"

"No, it's perfect."

Teacher Qin gestured for Luo Fei to sit down.

“But you forgot to change your voice. The words you said when you came to see me in the hospital were exactly the same as Li Shun’s voice.”

Luo Fei gave a wry smile.

"I see."

Teacher Qin poured two cups of tea and pushed one towards Luo Fei.

“I remember you aspired to be a policeman when you were in high school, and now you have achieved it and made many contributions.”

He took a sip of tea.

"I've been teaching for decades, and now my most outstanding student wants to arrest me. It's really ironic."

"Why do this?"

Luo Fei didn't touch the teacup, but looked directly into Teacher Qin's eyes.

"Is it worth risking your entire life for revenge?"

The smile on Teacher Qin's face disappeared.

He got up, walked to the windowsill, picked up a picture frame, and gently wiped it.

Luo Fei recognized the photo as Qin Yutong's high school graduation photo, where she was smiling brightly.

"Did you know that the day Yu Tong died was her twentieth birthday?"

Teacher Qin's voice suddenly became hoarse.

"She bought a cake, intending to go home and celebrate with her parents. That beast hit her with his car while she was still carrying the cake."

Luo Fei noticed that the old man's hands were trembling.

"In court, the person who took the blame didn't even dare to look me in the eye."

Teacher Qin continued, each word sounding as if it were being squeezed out from between her teeth.

"And the real murderer, the young master of the Jiang family, was sitting in the audience."

Luo Fei remembered this case, a sensational traffic accident five years ago. At that time, he had just been transferred back to Jiangcheng and only heard that a rich second-generation heir had drunk driving and killed a female college student, and was sentenced to eight years in prison. Now it seems that things are far more complicated than that.

"Teacher Qin, are you saying someone took the blame?"

Teacher Qin turned around, her eyes filled with a cold light that Luo Fei had never seen before.

"It's not just someone saying it, it's a fact."

He walked back to the table, took an envelope from the drawer, and pushed it in front of Luo Fei.

"check it out."

Luo Fei opened the envelope; inside was a photograph.

A young man stood at the courthouse entrance, dressed in a suit and tie, with a smile on his face, a stark contrast to the perpetrator in the news reports.

"This is."

"The real young master of the Jiang family, Jiang Minghui."

Teacher Qin's voice was frighteningly calm.

"And sitting in the dock was just his driver's son."

Luo Fei felt a wave of dizziness.

He recalled the countless cases he had handled, the justice distorted by money and power, and the injustices for which there was nowhere to appeal.

But this case is different; it involves his beloved teacher.

"How did you find out?"

Teacher Qin sat down again, placing her hands folded on the table.

"The year after Yutong died, I received a USB drive sent anonymously."

His gaze drifted into the distance.

"Inside is the surveillance video of the intersection where the accident occurred. It clearly shows the person in the driver's seat, who is Jiang Minghui."

Luo Fei frowned.

"You didn't call the police?"

"Of course I reported it."

Teacher Qin gave a cold laugh.

"I went to the Municipal Bureau the next day and handed the USB drive to Deputy Director Du Changfeng."

Luo Fei suddenly looked up.

"Director Du?"

"Yes, that's your current boss."

Teacher Qin's expression was sarcastic.

“I waited for three months without any news. When I went to inquire again, Du Changfeng said that he had never received any USB drive and that the surveillance video had been ‘accidentally’ formatted.”

Luo Fei felt nauseous. Du Changfeng was known in the bureau as the "smiling tiger" because he appeared kind and approachable on the surface, but secretly maintained close relationships with many business people.

Are you sure it's Director Du?

"I saw him accept it with my own eyes!"

Teacher Qin suddenly raised her voice, then sighed wearily. (End of Chapter)