We asked you to solve cases, and here you are sharing your criminal experiences?

The office of the Criminal Investigation Detachment of Jiangcheng Public Security Bureau was filled with the sound of keyboards being typed.

Everyone is busy processing the previous case closure reports.

Only Song Qianxia was slumped in the chair like a lump of mud.

She held a bag of cucumber-flavored potato chips in her hand, chewing them listlessly.

The job transfer application was torn up by Gu Tingchen in front of him.

This means she has to remain on this dangerous front line where her identity could be exposed at any moment.

Song Qianxia sighed and was just about to put a second potato chip in her mouth.

The internal red telephone on the table suddenly started ringing like crazy.

Zhao Ming grabbed the receiver, listened for a couple of sentences, and his expression changed drastically.

He stood up abruptly, the chair scraping against the floor with a screeching sound.

"Everyone, put on your gear! Something's happened at Shengshi Shopping Mall!"

Zhao Ming shouted as he rushed out.

"We just received a report from the local police station that a five-year-old boy has gone missing in a shopping mall!"

Song Qianxia's hand trembled, and the potato chips fell onto the keyboard.

The disappearance of children is a major case.

Before she could react, Gu Tingchen had already strode out of the captain's office.

He donned a black tactical vest and moved swiftly and decisively.

"Zhou Zheng led a team to seal off all entrances and exits of the mall. Zhao Ming went to the control center."

Gu Tingchen quickly issued the order, his gaze sweeping directly towards Song Qianxia in the corner.

"Song Qianxia, ​​come with me."

Twenty minutes later.

Several police cars came to a stop outside the main entrance on the first floor of Shengshi Shopping Mall.

This is the largest complex in Jiangcheng, and it usually sees a huge flow of people.

At this moment, a cordon has been set up around the mall.

As soon as Song Qianxia jumped out of the car, she heard a series of noisy electrical sounds coming from the walkie-talkie.

"Report to Captain Gu! The local police have found the lost child in the stairwell on the third floor of the South Building!"

"The child is alright! Not injured!"

Upon hearing this news, everyone breathed a long sigh of relief.

Zhao Ming wiped the sweat from his forehead.

"I was terrified. I thought I'd stumbled upon some kind of serial abduction case."

Gu Tingchen didn't say anything, but just walked quickly into the mall.

Song Qianxia quickly followed.

Outside the emergency exit on the third floor of the South Zone, several mall security guards and two local police officers stood.

A young mother was holding a boy of about five years old and crying loudly.

The boy didn't seem to have any external injuries; he was just stunned by the shock.

Gu Tingchen stepped forward and asked a few routine questions.

It was confirmed that the child had only been out of sight briefly, for about ten minutes.

It looks like a false alarm.

"Captain Gu, is this the case closed?"

Zhao Ming asked in a low voice from the side.

"I guess the child was playing and got lost in the stairwell."

Gu Tingchen was about to nod when his gaze fell on the back of the boy's clothes.

Song Qianxia's gaze also happened to fall on that side.

The two of them stepped forward at the same time.

The boy was wearing a white cartoon sweatshirt.

Right below the hood of the hoodie, there was a black sticker about the size of a coin.

The pattern is abstract, resembling a black feather.

Song Qianxia's eyes sharpened instantly.

In her previous life, she had seen far too many of these things in the underground black market of Cyrillic continent.

This is not a children's sticker at all.

This is a "check-in mark" used exclusively by underground gray-market operations teams!

Song Qianxia walked directly behind the boy and reached out to tear off the sticker.

"Hey, what are you doing!"

Suddenly, a sharp female voice came from the side.

Lin Wan, dressed in a traffic police uniform, pushed aside the cordon and walked over.

She was punished for stealing credit and made to stand guard at a nearby intersection.

I happened to run into the mall where the police were responding to a call, so I came over to watch the commotion and make my presence known.

"The child has been found, what are you doing touching things here?"

Lin Wan looked at Song Qianxia with disdain.

"What's the big deal? Isn't it normal for kids to stick stickers everywhere these days?"

"The task force is making a mountain out of a molehill all the time; it's a complete waste of police resources."

Song Qianxia completely ignored Lin Wan.

She held the torn-off sticker in her hand and smelled it.

The back doesn't have the usual glue smell; instead, it has a faint pine scent.

Song Qianxia turned to look at Gu Tingchen.

"Captain Gu. This isn't an ordinary sticker."

She held up the edge of the sticker to show Gu Tingchen.

"This is a waterproof and tear-resistant military-grade adhesive material."

"The pattern printed on it is also a specially designed reflective coating."

Song Qianxia spoke with extreme seriousness.

"This is not an ordinary case of a missing child."

Zhao Ming was stunned.

"Xiao Song, don't scare me. What can a sticker possibly prove?"

Song Qianxia glanced at the crowd around her and lowered her voice.

"This shows that someone is using this shopping mall as a training ground."

She pointed to the surveillance camera outside the stairwell.

"They took the children away not to traffic them."

"It's not that they're testing the mall's security response speed."

"This is called blind spot check-in."

Song Qianxia's mind raced, but her explanations came one after another.

"This is a common reconnaissance tactic used by criminal organizations."

"They choose an insignificant target, take it away, mark it, and leave it in a blind spot of the surveillance cameras."

"Then we started the timer to calculate the time it would take for the security guards and police to find the target."

Gu Tingchen's eyes turned completely cold.

He completely understood what Song Qianxia meant.

Someone is conducting a pre-battle rehearsal for some high-risk crime in the largest shopping mall in Jiangcheng.

Lin Wan chuckled from the side.

"Song Qianxia, ​​what kind of spy drama are you writing?"

"It's just a cheap sticker, and you're talking about checking in in blind spots? I think you've watched too many movies and have something wrong with your brain."

Lin Wan rolled her eyes.

"Captain Gu, this is clearly a prank. I suggest we withdraw the police force immediately."

"The traffic outside is a complete mess."

Gu Tingchen gave Lin Wan a cold glance.

That gaze was extremely intimidating.

Lin Wan felt uneasy under his gaze and quickly shut her mouth.

"Put the stickers in an evidence bag and send them to the Municipal Public Security Bureau's Technical Section for expedited comparison."

Gu Tingchen turned to look at Zhao Ming.

"Notify the Special Police Brigade to raise the security level of Shengshi Shopping Mall to red alert."

"Dispatch plainclothes officers to patrol each floor of the mall."

Zhao Ming stood at attention and saluted.

"Yes, Captain Gu!"

Looking at the bustling crowds in the mall, Gu Tingchen decisively gave the order.

"No one is allowed to lift the alert without my order."

Looking at Gu Tingchen's profile, Song Qianxia mentally gave him a thumbs up.

Although this man usually acts like a living devil, he is truly clear-headed in crucial moments.

I will never be fooled by appearances.

The task force remained on high alert in the mall all afternoon.

Plainclothes police officers mingled in the crowd, keeping a close eye on parents with children.

The comparison results from the technical department are also out.

The sticker material is indeed a special type of adhesive that cannot be bought on the market.

This further confirmed Song Qianxia's guess.

As night falls, the neon lights outside the mall come on.

Just when everyone thought the suspect wouldn't make another move today.

8:15 PM.

Another urgent call came from the walkie-talkie on Gu Tingchen's waist.

"Reporting to Captain Gu! The children's play area is on the third floor of the South Wing!"

The plainclothes police officer sounded a little breathless.

A seven-year-old girl has gone missing!

Gu Tingchen grabbed the walkie-talkie.

"Seal off all downward elevators and passageways! No one is allowed to leave the third floor!"