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

When he saw the words "DNA match 99.99%", his fingers unconsciously tightened, and the paper made a slight cracking sound.

Liu Shao Cong

When Luo Fei pronounced the name, he felt a bitter taste on his tongue.

He recalled the second victim he found in the abandoned factory on that rainy night three days earlier.

The girl was tortured beyond recognition, and the bloodstains left on the tree branch became key evidence.

Huang Xiao moved closer.

"Director Wang has already issued the arrest warrant, but..."

He hesitated.

"But what?"

Luo Fei looked up and saw the hesitation in Huang Xiao's eyes.

"The Liu family's influence in Chengdu, Captain Luo, you know that Deputy Director Li Qihong is Wu Weiguo's brother-in-law, right?"

Luo Fei sneered.

"of course I know."

He would never forget the look in Wu Weiguo's eyes when he was dismissed three months ago—a look of deep-seated hatred.

"But the evidence in this case is conclusive. Even if the King of Heaven himself came, he couldn't protect Liu Shao Cong."

Huang Xiao sighed.

"I've already sent Team Two to the Wuzhou Group headquarters. I hope they can bring the person back safely."

Luo Fei nodded, his gaze returning to the report.

The bloodstains on the tree branch, the unconscious survivor, and the blurry figure in the surveillance video provide a complete chain of evidence.

But he knew in his heart that in Chengdu, some rules could not be broken with evidence.

Top-floor conference room at the headquarters of Wuzhou Group.

Liu Shao Cong crossed his legs and idly scrolled through his phone screen.

He was wearing a custom-made Armani suit, his cufflinks gleaming coldly under the lights, but his eyes were terrifyingly gloomy.

The conference room door was suddenly pushed open, but Liu Shao Cong didn't even look up.

I told you not to bother me.

"Your temper has grown quite a bit in three months."

A deep voice sounded.

Liu Shao Cong suddenly looked up, and his phone fell to the ground with a thud.

The man standing at the door was tall, dressed in a well-tailored black suit with a neatly tied tie.

His eyes were as sharp as a hawk's, and his face wore a half-smile.

"Big brother?"

Liu Shao Cong hurriedly stood up, his suit jacket hem knocking over a coffee cup, the brown liquid spreading across the conference table.

Liu Haotian walked slowly closer, his leather shoes making a rhythmic sound on the marble floor.

He walked up to Liu Shao Cong and suddenly kicked him in the stomach.

"Uh!"

Liu Shao Cong cried out in pain, staggered back a few steps, and crashed into the wall.

"What did I tell you before I went abroad?"

Liu Haotian's voice was eerily calm.

"I'm telling you to behave yourself and not cause me any trouble."

Liu Shao Cong clutched his stomach, his face pale.

"Big brother, it's me."

"Two girls! And both college students!"

Liu Haotian grabbed his younger brother by the collar.

"The media has already taken notice. Do you think the Liu family is too low-key?"

The conference room door opened again, and Li Shang strode in.

Upon seeing this, he immediately stopped in his tracks.

"Mr. Liu."

Liu Haotian released Liu Shaocong and turned to Li Shang.

"I told you to keep an eye on him, and this is how you look at him?"

Li Shang lowered his head.

"It's my fault."

"Annual salary reduced to ten million."

Liu Haotian said coldly.

"If this happens again, you'll be sent back to your hometown to farm."

Liu Shao Cong rubbed his stomach and muttered softly.

"It's not my fault."

Liu Haotian suddenly laughed, a laugh that sent chills down Liu Shao Cong's spine.

He took a glass bottle out of his briefcase and placed it on the conference table.

Some kind of organ is floating in the bottle, soaked in a formalin solution.

"do you know it?"

Liu Haotian asked softly.

Liu Shao Cong stared at the bottle for a few seconds, then his expression suddenly changed drastically.

"This is this"

"David's heart".

Liu Haotian said calmly.

"I've already dealt with him and that woman."

Liu Shao Cong's expression twisted; he first laughed wildly, then burst into tears.

He knelt on the ground, his fingers trembling as he touched the glass bottle.

"He betrayed me. How dare he betray me?"

Liu Haotian looked down at his younger brother.

"Now, stand up."

Liu Shao Cong wiped his face and stood up unsteadily.

"The police will be here soon."

Liu Haotian straightened his cuffs.

"Remember, don't say a single word."

The interrogation room of the Qingyang District Police Station was dimly lit.

Liu Shao Cong sat in the interrogation chair, his hands folded on the table, his expression calm to an almost eerie degree.

His lawyer, Li Ming, stood to the side with a professional smile on his face.

Wang Hong personally oversaw the interrogation, while Luo Fei and Huang Xiao observed from behind a one-way mirror.

"Liu Shao Cong, where were you between 8 PM and 2 AM on the 12th of this month?"

Wang Hong got straight to the point.

Liu Shao Cong blinked and looked at Li Ming.

"My client has the right to remain silent."

Li Ming adjusted his gold-rimmed glasses.

"We will not answer any questions until you provide solid evidence."

Wang Hong tapped on the table.

“The DNA from the bloodstains on the tree branch matched that of Liu Shao Cong, and his car was also captured on surveillance footage at the crime scene.”

Li Ming's smile remained unchanged.

"DNA comparison may have errors, and as for surveillance footage, it can only prove that my client's car passed through there, it can't prove anything else."

The interrogation lasted for three hours, during which Liu Shao Cong remained completely silent.

In the end, Wang Hong had no choice but to announce a temporary suspension.

"What a bastard!"

Huang Xiao slammed his fist against the wall.

"With such overwhelming evidence, he still wants to deny it?"

Luo Fei stared at Liu Shao Cong's back in the interrogation room.

He's waiting for someone.

"Who are you waiting for?"

"Wait until his older brother has arranged everything."

Luo Fei's voice was deep.

"Liu Haotian will not let his brother go to jail."

Just then, Wang Hong hurried over.

"Something's happened. The identification center has changed its story."

Luo Fei and Huang Xiao exchanged a glance and immediately followed Wang Hong to the office.

The computer screen displayed a new expert report with conclusions that were completely different from the previous one.
"The sample was severely degraded and no valid DNA information could be extracted."

When Wang Hong punched Duan Gang in the face, he heard a crisp "crack" sound.

Duan Gang's glasses flew off and slid a long way across the tiled floor of the forensic department corridor.

He staggered back two steps, his back slamming into a storage cabinet against the wall with a dull thud.

"Are you even human?"

Wang Hong grabbed Duan Gang by the collar and lifted him up.

Blood trickled from the corner of Duan Gang's mouth, but he did not resist. He simply lowered his eyelids to avoid Wang Hong's fiery gaze.

The other colleagues in the forensic department were stunned. Some tried to step forward to dissuade him, but Wang Hong glared at them and stopped them.

"Fifteen years of friendship, and it's only worth Liu Shao Cong's paltry sum?"

Wang Hong's voice was extremely low, yet sharp as a knife. "I fucking treated you like a brother, and you, of all people, tampered with crucial evidence!"

Duan Gang's lips trembled as he finally raised his head.

Wang Hong then noticed that his usually neat and presentable old classmate now had sunken eyes and heavy dark circles under his eyes.

"sorry"

Duan Gang's voice was incredibly hoarse.

"sorry?"

Wang Hong sneered.

“That beast Liu Shao Cong ripped out the intestines of three girls! Because of your false report, he can now walk out of the detention center with his head held high! Do you know how those girls’ families feel?”

Duan Gang's body suddenly trembled violently. He broke free from Wang Hong's hand, bent down to pick up his shattered glasses, and moved as slowly as if he had aged twenty years.

"I'm resigning."

Duan Gang said softly, walked to his desk, and began to pack his things.

Wang Hong stood there, his fists clenched so tightly they turned white.

He watched as Duan Gang placed his personal belongings one by one into the cardboard box, along with a mug that read "Best Employee," a photo of his daughter, and a group photo of them when they graduated from university.

"and many more."

Wang Hong suddenly noticed a corner of a hospital receipt sticking out of Duan Gang's desk drawer.

He took two steps forward, pulled it out, and saw that it was a bill for surgical expenses. The shocking number in the amount column made him gasp.

"What's wrong with Xiaorou?"

Wang Hong's voice suddenly softened.

Duan Gang's movements stopped, and his shoulders began to shake uncontrollably.

He slowly turned around, and Wang Hong then realized that this usually strong man was already in tears.

"The surgery for congenital heart disease failed."

Duan Gang's voice was fragmented.

She needs a heart transplant, but the waiting list is two years long. She can't wait that long.

Wang Hong felt a wave of dizziness, and the receipt in his hand felt as hot as a branding iron.

He recalled that when he went to Duan Gang's house for dinner last month, the eight-year-old girl who obediently called him "Uncle Wang" did look paler than usual.

"Liu Shao Cong promised to find a matching heart for my daughter."

Duan Gang wiped his face.

"And the surgery will cost three million."

Wang Hong's anger was instantly extinguished by more than half.

He opened his mouth, but didn't know what to say.

Law and justice suddenly seem so pale in the face of life.

"I understand why you hit me."

Duan Gang picked up the cardboard box and revealed a smile that looked more like a grimace.

"If it were me, I might have hit harder."

Wang Hong stood there, watching Duan Gang's figure disappear at the end of the corridor.

He bent down and picked up a shard of glasses from the ground, the sharp edge drawing blood from his palm.

In the interrogation room, Qiao Aiguo huddled in his chair like a frightened mouse.

Wang Hong slammed the folder heavily onto the table, the metal legs scraping against the floor with a screeching sound.

Qiao Aiguo shuddered, his cloudy eyes filled with fear.

"Qiao Aiguo, 52 years old, late stage of lung cancer."

Wang Hong read the documents aloud in a cold tone.

"A long criminal record: drug use, theft, intentional assault. Now, he's been added to the list of sexual assault and murder?"

Qiao Aiguo coughed twice, revealing a mouthful of yellow teeth.

"Officer, I've already confessed, what else do you need to ask?"

"You've admitted it?"

Wang Hong slammed his hand on the table.

"You deliberately placed the key at the crime scene, didn't you? You also left the fingerprints intentionally! How much did Liu Shao Cong pay you? Was it worth it for a dying man like you to take the blame for him?"

Qiao Aiguo's eyes flickered for a moment, then he resumed his roguish demeanor.

"I was just confused for a moment when you said that."

The interrogation room door was pushed open, and Deputy Director Lu Wei walked in with a gloomy face.

He was in his early fifties, with gray hair, but his figure remained as upright as a pine tree.

"Wang Hong, come out for a moment."

Lu Wei's voice was not to be questioned.

In the corridor, Lu Wei was direct and to the point.

"Don't waste time. Qiao Aiguo has already confessed, the chain of evidence is complete, and I want to see the case closure report before I leave work today."

Wang Hong's eyes widened.

"Director Lu, you know perfectly well..."

"What do I know?"

Lu Wei interrupted him.

“I know this case has dragged on for two months, the media is constantly asking questions, and the pressure from above is immense! Now that the murderer has turned himself in, what more do you want?”

"But the victim is still unconscious!"

Wang Hong lowered his voice.

"We just need to wait for her to wake up and identify her."

"wait?"

Lu Wei sneered.

"The doctor said she might never wake up! Even if she does, her memory might be impaired. Wang Hong, don't be too idealistic, let's close this case as soon as possible."

Wang Hong clenched his fists.

"What about those three girls? What about justice for them?"

Lu Wei gave him a deep look.

“Sometimes, justice has to be served gradually. Write the report first; that’s an order.”

After saying that, Lu Wei turned and left, his leather shoes making a dull thud on the floor.

Wang Hong stood there, feeling a sense of powerlessness.

He turned to look at the one-way glass, where Qiao Aiguo was leisurely picking at his nails, as if enjoying the last "vacation" of his life.

Cloud Top Restaurant, top floor of Chengdu Twin Towers.

Luo Fei stood in the all-glass observation elevator, looking down at the city landscape below, which resembled a swarm of ants.

The elevator was climbing at a speed of seven meters per second, and his eardrums throbbed slightly.

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

The elevator doors opened, and a man in a custom-made navy blue suit stepped forward, a perfectly timed smile on his face.

Behind him stood two men, one young and impetuous with disdain in his eyes; the other calm and reserved with sharp, hawk-like eyes.

"Mr. Liu, you're too kind."

Luo Fei nodded slightly, his gaze sweeping over the three faces.

"Is this your younger brother, Liu Shao Cong? And the other one must be Mr. Li Shang."

Liu Haotian looked surprised, then smiled.

"Officer Luo lives up to his reputation. Please, let's eat and chat."

The restaurant was emptied, with only a round table in the center set with exquisite tableware.

Liu Haotian personally pulled out the chair for Luo Fei, a gesture that made Liu Shao Cong's eyes widen.

"Big brother, you..."

"Shaocong, you mustn't be rude."

Liu Haotian shut his younger brother up with just one look.

"Officer Luo is a distinguished guest."

The waiter brought out the appetizers, but Luo Fei showed no intention of touching his chopsticks.

He asked directly.

"Mr. Liu, you've got the wrong person. I'm just an ordinary criminal investigator."

Liu Haotian took a sip of red wine, his smile undiminished.

"Officer Luo is too modest. His amazing skill of 'portrait-based crime solving' and the forensic report on that blood-stained tree branch left a deep impression on me."

Luo Fei's eyes narrowed.

The results of the bloodstained tree branch identification were known only to core members of the special task force.

"Mr. Liu is very well-informed."

"To do business, you always need some information channels."

Liu Haotian put down his wine glass.

"Officer Luo, I'm a straightforward person. I invited you here today because I want to make friends."

Li Shang timely took out two silver combination lock cases and placed them on the table.

With two clicks, the lid of the box popped open, revealing neatly stacked hundred-yuan bills that gleamed enticingly under the light.

"Five million, just a small gift."

Liu Haotian pushed up his glasses.

"I hope Officer Luo will show leniency."

The restaurant fell silent for a moment.

Liu Shao Cong's breathing became heavy, his eyes fixed on the banknotes.

Li Shangze observed Luo Fei's every subtle expression.

Luo Fei suddenly laughed. (End of Chapter)