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Chapter 1846 Agreement
When Su Ning returned to the police station, he handed over the 100,000 yuan he had received from Zeng Nan as a bribe to Captain Qin.

This pleased Captain Qin greatly, and he regarded Jian Fan as a model of an outstanding police officer.

Then, Su Ning brought up the key he had obtained, saying that he didn't know whether he should hand it over as well.

In the criminal investigation team captain's office, Captain Qin locked 100,000 yuan in cash into the safe and turned to look at the key to the Jiangjing Mansion on the table.

Sunlight streamed through the blinds, casting striped shadows on the key, making it look exceptionally delicate.

"I've accepted the money, but this..." Captain Qin suddenly asked about the keys that Su Ning had just mentioned. A house like that is worth at least one or two million, "Are you sure it's a gift from Jiang Jiuding for your wedding with Jiang Dijia?"

Su Ning stood at attention: "Yes, Captain. But I refused on the spot."

"Why didn't you hand it in?" Captain Qin's sharp gaze went straight into Su Ning's eyes.

“The Jiang siblings’ excuse was that it was my and Jiang Dijia’s marital home, but I’m not sure if that counts as bribery,” Su Ning said frankly. “After all, I didn’t accept it, and there was no transaction involved.”

Captain Qin nodded slightly: "That was handled correctly. However..."

He changed the subject, "Jiang Dijia is a good catch, why did you refuse?"

"Personal reasons, Captain." Su Ning's expression remained unchanged.

Captain Qin wisely refrained from pressing further and instead retrieved a document from his drawer: "Alright! The case that just occurred: the city hospital's cash transport vehicle was hijacked, resulting in two deaths and two injuries. Chen Shiquan specifically requested that you and Xiao Chenggang be involved."

"Understood!" Su Ning saluted and turned around, but was stopped at the door.

"Jian Fan," Captain Qin said meaningfully, "you are the most special policeman I've ever met! I hope you can continue to maintain this purity."

"Yes, Captain Qin! I won't let you down."

As Su Ning stepped out of the office, he breathed a long sigh of relief.

He told a little lie about the key; Jiang Dijia had indeed given it to him separately, but he didn't want to complicate things.

Some relationships are better severed as cleanly as possible.

"Jian Fan, I heard Jiang Dijia gave away a house?"

"To be precise, it was the wedding room that Jiang Jiuding gave to Jiang Dijia and me."

"Oh? Are you regretting it now that you've refused?"

“There’s absolutely no way Jiang Dijia and I could be together! Besides, with you by my side, how could I possibly look at her?”

"Hmph! Smooth talker! I wonder if what you're saying is even true?"

"Want to come to my place for coffee tonight? I'll show you with my actions then."

"..." Ever since Liang Wuyun and Su Ning confirmed their relationship, Su Ning has invited Liang Wuyun many times.

"What? We've been talking for quite a while now, you should know how I feel, right?"

"Hmph! If you can solve this case of two deaths and two injuries at the hospital, I'll agree to your request."

"Hehe, it's a deal."

"Hmph! What a jerk! Acting like you're absolutely sure you can break it."

"At most 24 hours! If it exceeds one minute, I will not bring it up again."

"Fool!" Su Ning's statement displeased Liang Wuyun.

……

The parking area behind the city hospital was crowded with onlookers outside the cordon.

When Su Ning and Xiao Chenggang arrived, Chen Shiquan was squatting next to the cash-in-transit vehicle, inspecting the shell casings.

"You're here?" Chen Shiquan didn't even look up. "Take a look at this."

Suning put on gloves and took the deformed bullet: "A 9mm pistol bullet. Judging from the degree of deformation, the shooting distance was no more than five meters."

“That’s right.” Chen Shiquan stood up, brushing the dust off his knees. “Both security guards were shot in the front, killed instantly. The strange thing is…”

He pointed to the bloodstains a few steps away, "The two cashiers were hit by air gun pellets; they were only injured, not killed."

Xiao Chenggang leaned closer: "The robbers are even switching weapons? That's so strange!"

Suning did not respond immediately, but instead looked around.

The back entrance of the hospital is narrow and has high walls on both sides. In theory, it should have a complete surveillance system, but now all the cameras are crooked to one side.

“The surveillance system has been tampered with,” he suddenly said. “It wasn’t a temporary sabotage; it was something that was planned in advance.”

Chen Shiquan raised an eyebrow: "What do you mean?"

“Look at the rust on the fixing screws.” Su Ning pointed to the nearest camera. “There are fresh scratches on the threads, but the base is severely rusted, which means it was loosened a long time ago. It only took a light push to commit the crime.”

"Check the surveillance footage!" Chen Shiquan immediately ordered his men. "Focus on whether any suspicious individuals approached the cameras in the two hours before the incident!"

Half an hour later, the police reported that an hour before the incident, a suspicious man in a repairman's uniform had been fiddling with all the cameras, but his face was covered by a hat.

"Amazing!" Xiao Chenggang nudged Su Ning on the shoulder. "How did you figure that out?"

Suning smiled but did not answer.

In one world, he was a top infiltration expert, with an intimate knowledge of the weaknesses of surveillance systems.

In the meeting room temporarily requisitioned by the hospital, Hu Lijun laid out the photos from the scene one by one on the table.

"Close your eyes," she commanded Su Ning. "I want you to completely recreate the events of the crime."

Suning closed his eyes, and his breathing gradually became steady.

Hu Lijun's voice seemed to come from a very far place:

"At 10:05 a.m., two cashiers from the hospital's finance department, escorted by two bodyguards, pushed a cash register cart out of the side door..."

In Su Ning's mind, the scene gradually became clear: a gray hospital corridor, the sound of metal trolley wheels, and bodyguards' wary eyes sweeping across the empty parking lot...

"Stop," he suddenly said. "It's too quiet."

"What?" Hu Lijun asked.

“The side entrance of the hospital is never usually this quiet.” Su Ning said with her eyes still closed. “There must be some kind of disturbance…maybe a vehicle malfunction or a minor accident that has drawn the crowd away.”

Hu Lijun quickly flipped through her notes: "There is indeed a record. Five minutes before the incident, a delivery truck leaked oil in front of the hospital..."

“Continue.” Su Ning frowned. “When the cash register cart was pushed to the middle of the parking lot…”

Suddenly, he jolted: "Four people! Not three!"

"How could there be four people? Many witnesses said there were only three," Xiao Chenggang asked doubtfully.

Su Ning suddenly opened his eyes: "There are four robbers! One of them is disguised as a doctor or a cleaner, and he followed the group receiving the money from inside the hospital!"

The conference room was silent.

Hu Lijun said thoughtfully, "Interesting! Continue."

"The first robber approached from behind and shot two bodyguards dead with a pistol," Su Ning said, pointing to photos of the scene. "At that moment, two accomplices rushed out of a car parked on the side of the road and used an air gun to wound the cashier, creating chaos..."

"What about the fourth person?" Chen Shiquan pressed.

"He mingled with the crowd rushing to the rescue..." Su Ning's eyes lit up. "He might even have called an ambulance beforehand! Or maybe he came back to check the scene afterwards. Find out who called the ambulance!"

Hu Lijun immediately picked up the walkie-talkie and gave instructions.

Less than ten minutes later, the news came back: the ambulance had indeed received an anonymous call reporting a shooting at the hospital's back gate, and the response time was a full three minutes faster than usual!
"Search the hospital!" Chen Shiquan slammed his fist on the table, his words flowing freely. "Focus on finding doctors in white coats or cleaning staff in uniforms!"

In the hospital's storage room, a police officer ran up excitedly, holding an evidence bag: "Captain Chen! A suspicious white coat was found in the third-floor changing room!"

A quick forensic examination confirmed: "The cuff showed signs of gunpowder residue, confirming it was worn by the shooter."

Hu Lijun carefully inspected the white coat: "The name tag has been torn off, but..."

She flipped open the lining. "There's a mark here."

Su Ning leaned closer to look and saw that it was a blurry blue stamp mark, with a part of the character "威" (wei) still faintly discernible.

“Wei…” Xiao Chenggang scratched his head, “What does that mean?”

"It might be a laundromat's logo," Su Ning pondered. "Check the laundromat companies that the hospital partners with."

Just then, Mr. Wen, an expert in trace evidence identification, walked in, leaning on his cane.

This white-haired old man is a living fossil in the field of criminal investigation, having solved countless major cases.

"I heard a young man deduced the fourth robber?" Old Wen's sharp gaze swept over everyone, finally landing on Su Ning. "Is that you? Tell me about it."

Su Ning briefly recounted the reasoning process, emphasizing, "Mr. Wen, their alternating use of real guns and air guns was intentional. Real guns were used to kill and establish authority, while air guns were used to injure and create chaos, making it easier to escape and destroy evidence. Or, to put it another way, the air guns were used to injure people to cover up their inside contacts, since it's unlikely that such a big case wouldn't involve an inside contact."

Old Wen nodded repeatedly: "That's right! But there's one thing you didn't mention..."

He pointed to the collar of the white coat, "Look here, there's a short brown hair that doesn't match the blonde hair of the two cashiers. It's very likely left by the robbers."

"Send the DNA samples for comparison immediately!" Chen Shiquan ordered.

Old Wen patted Su Ning on the shoulder: "Young man, you have a good eye. Come visit my lab sometime; I'd like to hear your thoughts on some old cases."

"Okay! Mr. Wen, I'll bring my girlfriend to visit you later."

"Haha, it's a deal."

This is extremely high recognition.

All the police officers present looked on with envy, but only Su Ning noticed a complex emotion flash in Hu Lijun's eyes.

In the hospital's personnel department, Su Ning was looking through the roster of medical staff.

"Do all the doctors on duty have alibis?" the HR director said, wiping his sweat. "Could it be an outsider?"

"What about the surveillance footage?" Hu Lijun asked.

"The security camera near the locker room broke yesterday and hasn't been repaired yet..."

Su Ning suddenly pointed to a name: "Why is there so little information on this Dr. Ma Wei?"

The HR director leaned over to look: "Oh, he's a partner doctor of the outsourcing company, and he only sees patients at the outpatient department for half a day each week. The day of the incident... was indeed the day he was seeing patients."

Do you have his photo and contact information?

“There’s no photo, just a phone number…” the HR director searched through the file. “Strange, a page of the contact information has been torn out.”

Su Ning and Hu Lijun exchanged a glance.

After leaving the personnel department, Hu Lijun immediately ordered: "Issue an arrest warrant for Ma Wei and conduct a thorough investigation of the hospital's outsourced personnel!"

"Too hasty! We need more solid evidence." "Hmph! That's a strange thing to say."

"Hehe, it seems you have a lot of opinions about me, Sister Lijun."

"What do you think? Ever since the last counterfeit money case ended, haven't you come to see me?"

"Isn't this just too busy? We criminal investigators don't have fixed hours."

Back at the police station, Su Ning reported the case's progress to Captain Qin.

Just then, Liang Wuyun pushed open the door and entered, carrying two boxed lunches in her hands.

"Let's eat first." She handed a plate to Su Ning, deliberately ignoring Captain Qin's outstretched hand. "I heard you found crucial evidence?"

Captain Qin reluctantly withdrew his hand: "This kid has done another good deed. Even Elder Wen speaks highly of him."

Liang Wuyun smiled proudly and secretly held Su Ning's hand under the table.

At that moment, Su Ning suddenly felt that refusing the set of keys was absolutely the right decision.

As night deepened, the police station building remained brightly lit.

The police began questioning the doctors at the hospital, hoping to get useful information about the imposter doctor.

To their regret, they did not obtain any valuable intelligence.

……

The criminal investigation team's meeting room was filled with smoke.

The projection screen displayed a magnified photo of the tire tread pattern, with red arrows marking several fine yellow powder spots.

“Chrysanthemum powder.” Suning pointed to the photo. “The robbers’ vehicle must have been to a chrysanthemum garden or planting area recently.”

“There are 37 parks in the city that grow chrysanthemums,” Hu Lijun said, flipping through the documents, “as well as six flower markets and countless private gardens…”

"Then check the ones that have been opened recently!" Xiao Chenggang interjected.

"All open." Xiao Wang from the technical department pushed up his glasses. "It's chrysanthemum exhibition season now."

A collective sigh filled the conference room.

Captain Qin rubbed his temples: "Any other clues?"

Suning switched to a slideshow displaying a ballistics analysis report: "The four robbers were accurate marksmen, with each bullet missing the target by no more than 3 centimeters on average. This level of skill requires frequent practice."

“There are twelve legal shooting ranges in the city,” Hu Lijun immediately added, “and countless illegal underground shooting ranges…”

"Then investigate..." Xiao Chenggang was interrupted before he could finish speaking.

"We can't investigate them all!" Veteran detective Zhang slammed his fist on the table. "How many police officers do we need for this kind of needle-in-a-haystack investigation?"

The meeting reached a stalemate.

Su Ning silently put away the documents—he had expected this to happen.

When conventional investigations reach a bottleneck, unconventional methods are sometimes necessary.

So Suning contacted Tang Shouyu, since Tang Shouyu owned a gun training club.

In a VIP room at the Sheng Tang Nightclub, Tang Shouyu played with photos of firearms brought by Su Ning, his eyes gleaming behind his gold-rimmed glasses.

"Officer Jian, are you asking me to be an informant?" he asked with a half-smile.

“It’s mutually beneficial.” Su Ning took a sip of whiskey. “Isn’t President Li currently cleaning house? These armed thugs staying in the city aren’t safe for anyone.”

Tang Shouyu's expression changed slightly—Su Ning clearly knew more inside information.

He put the photo away: "I'll ask around for you. But..."

He leaned closer to Su Ning and said, "Regarding the Jiang family's land, President Li really appreciates your... flexibility."

"I must do things within the legal framework." Su Ning put down his wine glass. "I need news within three days."

"it is good."

As Su Ning left the nightclub, she noticed a familiar figure in the corner...

Jiang Dijia was having a pleasant conversation with several men who looked like businessmen.

When she saw Su Ning, her expression froze, and she immediately turned away to avoid his gaze.

……

Three days later, Suning received a call from Tang Shouyu at the gym.

“What a coincidence,” the voice on the other end of the phone said with a laugh. “A few of my buddies were trying to stage an accident in the east of the city yesterday, and they almost got blown in the head by a 9mm gun. The driver’s appearance is very similar to the profile you gave me.”

"The exact location?" Suning paused, wiping his sweat with a towel.

"At the intersection of East Outer Ring Road and Shoushan Road, heading east towards Shoushan."

After hanging up the phone, Su Ning immediately dialed Xiao Chenggang's number: "Old Xiao, get dressed, we're on a mission!"

"Huh? I was sleeping..."

"Brother, this case is related to my lifelong happiness."

"WTF?"

In a small restaurant on the East Outer Ring Road, Xiao Chenggang stared at the map that Su Ning had slapped on the greasy table.

"Based on this?" He pointed to the blurry location sent by Tang Shouyu. "There are mountains for more than ten kilometers around. What's the point of looking for him!"

“If the robbers want to practice their shooting, they’ll definitely choose a secluded place.” Su Ning drew a circle on the map. “There’s an abandoned quarry on the northern slope of Dongshou Mountain, the perfect shooting range.”

At dusk, the two drove to the foot of Dongshou Mountain.

Xiao Chenggang complained about staying in the car to "provide backup," while Su Ning went up the mountain alone with a flashlight and evidence collection kit.

Three hours passed, and Suning searched almost every corner of the quarry, but found nothing.

His shirt was soaked with sweat, and his palms were cut by the rocks, but he still wouldn't give up...

His intuition told him that this was the breakthrough point.

At midnight, an exhausted Suning collapsed on the hillside.

I picked up a handful of wild grass and smelled a faint floral fragrance.

He sat up abruptly and shone his flashlight...

In the palm of my hand were several withered wild chrysanthemums!

Following the chrysanthemum bushes, Suning discovered a large number of lead bullet fragments and empty shell casings in a secluded depression.

The freshest bullet marks match the bullets from the hospital robbery perfectly!

"Found it!" Suning shouted into the radio, his voice echoing through the valley.

Just then, large raindrops began to fall.

Visibility at Dongshou Mountain was almost zero during the torrential rain.

The task force's police car struggled to crawl along the muddy mountain road, its headlights illuminating Su Ning waving a flashlight through the rain.

"There!" Hu Lijun pointed to the hillside. "Quick!"

The group braved the rain and climbed up the slope.

Su Ning was soaked to the bone, but excitedly pointed to a crevice in the rock: "Look at this!"

It was a transparent plastic bag that had been washed out by the rain, containing cigarette butts, snack wrappers, and several crumpled receipts.

The most precious thing was a tissue with chewing gum stuck to it.

"Haha, this is a real DNA goldmine!" The forensic doctor exclaimed, clutching the evidence bag as if he had struck gold. "This damp environment actually protected the biological samples!"

The rain intensified, but the search area expanded rapidly.

At daybreak, the technical department extracted a complete fingerprint from the plastic bag receipt, which perfectly matched the fingerprint on the locker in the "Dr. Ma Wei's" changing room at the hospital!
"That's him!" Captain Qin slammed his fist on the table at the temporary command post. "Compare his DNA with the database immediately!"

Three days later, in a high-end residential area on the outskirts of the city.

When the SWAT team broke down the door, the real culprit, using the alias Ma Wei, was revealed...

Retired special forces soldier Wang Tiejun is wiping his pistol.

"Don't move! Police!"

Wang Tiejun sneered and suddenly raised his gun to his temple.

At the critical moment, a rubber bullet struck his wrist precisely...

Su Ning, who was lying in ambush on the roof of the opposite building, put down his sniper rifle and breathed a long sigh of relief.

In the interrogation room, faced with overwhelming evidence, Wang Tiejun readily confessed to the entire plan:
"The person who provided the assistance was the hospital's security captain, who provided the cashier's vehicle schedule... The air gun was for creating chaos... The white coat was stolen from the laundry room..."

The celebration banquet for solving the case was held at Su Ning's restaurant.

More than twenty police officers crowded the hall. Su Ning, wearing an apron, cooked the meal herself, while Xiao Chenggang assisted her.

“Old Jian,” Xiao Chenggang said, sneaking a bite of mutton, “is your dad really not considering moving the shop? This location is just too out of the way.”

"The old man is sentimental," Su Ning said, stirring the chili peppers in the pan. "Besides..."

He glanced at Liang Wuyun, who had just gotten out of the car at the entrance, and said, "It's quiet here, perfect for a date."

Liang Wuyun walked in carrying a cake, followed by Hu Lijun and Chen Shiquan carrying wine.

The last one to enter was Captain Qin, carrying an exquisite box.

"Jian Fan," Captain Qin beckoned sternly, "come here."

Everyone fell silent.

Captain Qin opened the box, inside was a third-class merit medal.

"In recognition of your outstanding performance in the hospital robbery..." Captain Qin personally pinned the medal on Su Ning's neck, "After deliberation by the Party Committee of the Bureau, it has been decided..."

Amid the applause, Su Ning looked toward the kitchen doorway—her father, Jian Laoshi, was secretly wiping away tears with his apron.

At this moment, all the hard work was worth it.

Liang Wuyun, standing to the side, blushed shyly, after all, Su Ning had indeed solved the case in 24 hours.

……