Criminal Investigation: Forbidden Rose

At this moment, there are almost 36 hours left before Zhuang Zhengyi's speech at Yan'an University.

Qin Liang was involved in two recent human lives, and was highly valued by the bureau.Captain Zhou believed that Xia Yi's pursuit in the clubhouse was insufficiently prepared, and he didn't even report to the higher-ups, so he scolded everyone.

With a sad face, Xia said that the team had never carried out a hunting operation based on searching for Bluetooth addresses before, and there were so many guesses before and after, how could they have thought that they would actually hit it!

Captain Zhou slapped the table and issued a deadly order: "The whole city is offering a reward for wanted arrest. No matter what the cost, we must find this dangerous person!"

Jiang Mo's subordinates came back and reported: "Qin Liang's address has been searched, but he is not there, and the computer has been emptied remotely. We have left a group of people to keep an eye on the outside, but he has some anti-reconnaissance capabilities. Will be back."

Yan Jingjing and the Internet investigation team tracked Qin Liang's electronic footprints: "Qin Liang's ID in the hacker circle is 'G-Host', I checked it, and he is still a little famous in the circle. He usually picks up some virus customizations. , Private activities such as information theft are very active on the dark web, and more than 100 users have given him five-star praise—since he is an active user of the dark web, it is reasonable to suspect that he still has a batch of other people's ID cards , and prepaid bank cards.”

"He must have other hacker friends in the city, but his chat records are basically destroyed after reading."

However, Qin Liang seemed to have evaporated from the world, leaving no trace of clues to the police.

It was mid-June, and the graduation season was slowly kicking off. There were suddenly many family members of graduates on the campus of Yanda University, as well as a photography team busy taking graduation photos for students.Although Yanda security guards are very strict about vehicle control, they turn a blind eye to pedestrians walking in and out.

The city bureau notified them one by one, and when Yanda security guards finally started to check the ID cards one by one, it was already the day of Zhuang Zhengyi's speech.

This year, the Yanda Graduates Venture Capital Sharing Conference was held in the Elizabeth Auditorium—a gray building that looks like a European-style church in appearance.This is a joint venture between Yanda University and its British sister school. In addition to the usual gatherings, it is also used for religious services on campus and performances for students of the Drama Department.

Since the school believes that there is currently no substantive evidence that Qin Liang will do something that day, there is no need to cause panic among the students.As a result, all security work can only be carried out quietly.Police dressed as security guards or plainclothes interspersed among the crowd.

Under Shao Lin's strong insistence, the venue asked the students not to make video recordings or live broadcasts. The official photos will be released on the school website in the future.At the same time, Shao Lin also asked Yan Jingjing to monitor the Wi-Fi traffic going out of the auditorium throughout the process.Whether it is audio recording or video recording, real-time live broadcast is very characteristic: the traffic output is continuous, and the content is large, which is very easy to be discovered.

Shao Lin explained: "If Qin Liang wants to control it remotely, he must rely on live broadcasting, unless someone else is here. If he says no live broadcasting, but is busy broadcasting live broadcasting to others, there must be a problem."

"But, do you think he will come?" Xia Yi glanced at the five or six hundred students in the auditorium, as well as family members, boyfriends and girlfriends from other schools, "The whole city is wanted, that battle, tsk. Very few Criminals can be treated like this. You see, our team of 12 people are all present at the scene, and Deputy Jiang leads 12 people to guard the school gate, so he dares to come?"

In fact, the mainstream opinion in the bureau was that Qin Liang would not come.Since the plan was exposed, he no longer knew where to hide to avoid the limelight.

"I don't know." Shao Lin shook his head, "But I think he will come."

"If you don't come today, it will be very difficult for Qin Liang to have a chance to strike." Shao Lin analyzed softly, "His ability to seize opportunities is fast, accurate, and ruthless. He is not the kind of person who hesitates and shrinks. Yan Fangyu was surprised. In the few minutes after falling from the building, he seized and took advantage of it... If I were that kind of person, I would never let this opportunity go. Moreover, in his mind, you policemen are like useless wood. What's the use? He's not afraid."

Xia Yi: "..." Give me some face, bro.

At three o'clock in the afternoon, most of the audience had already been seated, and the event officially kicked off.

The plainclothes policemen started the investigation quietly, and even reminded them to turn off the videotape when they saw them take out their mobile phones.

In Xia Yi's earphones, there was a buzzing sound: "Report to the team leader, the identities of the audience in the first five rows of the rostrum have been checked. They are all normal students, and no targets have been found."

"The second team's backstage control room, prop room, and locker room have been checked, and no suspicious identities have been found."

"Received." Xia Yi frowned and looked at Shao Lin, "It seems to be confirmed that Qin Liang is not within 18 meters of Zhuang Zhengyi."

Shao Lin lowered his voice: "He's not here, so maybe he doesn't have accomplices."

The sharing meeting was carried out in an orderly manner according to the regulations, and Zhuang Zhengyi was the third speaker on stage.On the stage, the host finished his introduction: "Now, let us give you a round of applause - Yan'an University alumnus of grade 05 - Kewei angel investor, Mr. Zhuang Zhengyi!"

Before leaving, the assistant girl flicked the earphone microphone on her hand, but found that there was no sound coming from the stereo.She tried it twice, only to realize that the wheat seemed to be broken.The little girl's heart skipped a beat, and she quickly picked up the spare headset at the side and handed it to Zhuang Xiangyi who was about to take the stage.

The man in the suit smiled, and walked under the projection lights on the stage amidst applause.

Xia Yi stared at his back, his whole body tensed subconsciously.

Zhuang Zhengyi tried the microphone, and said with a smile that he recalled how many years ago, he was like everyone else, sitting in the Elizabeth auditorium and listening to his predecessors talk about entrepreneurship...

The man introduced his background, current investment work, and shared what an investor's day looks like.Everything is running as usual and seems to be fine.

Even Xia Yi's shoulders relaxed.

But when Zhuang Zhengyi finished introducing his undergraduate project, his microphone went silent.Zhuang Zhengyi was still talking, but the stereo was dead.Yan Jingjing, who had been monitoring the electronic equipment on site, suddenly raised her head: "Team leader, the connection to the headset has been interrupted!"

At that moment, Xia Yi didn't even think about it, his whole body flew out from the background like a cluster of sharp arrows.He snatched Zhuang Zhengyi's headset, and in a flash, he fell hard to the ground.

Time seemed to stand still at that moment, Zhuang Zhengyi turned his head and looked at Xia Yi in surprise.

When everyone reacted, there was murmurs and whispers from the bottom of the stage. Some curious students had already stood up in the back row, poking their heads and trying to see more clearly.

The backstage staff was also in an uproar: "What's wrong?"

"What happened?"

Yan Jingjing connected the instrument to a wireless headset and cracked the hacker's Bluetooth address with ease.She shouted: "I found it. After the headset was disconnected from the speaker, it connected to this address—22:22:f4:17:ae:03—should be within 18 meters. Who is this Bluetooth? of?"

The police officers immediately picked up the Bluetooth detector and searched around.

At the same time, Shao Lin strode out and took the microphone openly on the stage: "Everyone, I'm very sorry, there are some minor problems in the background, please stay where you are and don't panic."

He spoke at a gentle pace, with a gentle smile between the words: "Now, let's play a small interactive game. Students, look around you, look for a classmate you didn't know before, and tell TA your name is What's your name, which college you come from, and what you want to eat most now, okay?"

This seems like a weird little game.Many students looked at each other in blank dismay, glanced at the strangers around them, and turned away embarrassingly.

"I'm about to graduate, didn't I just realize that there are still many students I don't know on campus?" Shao Lin chuckled, his voice was already very nice, and with the reverberation of the microphone, he looked like a midnight radio host.

Some students acted according to what he said, and the auditorium was sparsely murmured.

Shao Lin noticed that there was a huge girl sitting on the far left in the third row. She looked like a pile of potatoes and could barely fit into the single seat.When her classmates saw her, they automatically ignored them, and formed pairs in twos and threes, leaving her alone, which was very embarrassing.

"Some students may be more introverted. If there are students around you who have not yet found a partner, you can take the initiative to invite them to expand the two-person group into a three-person group." Shao Lin added with a smile, "My name is Shao Lin is a guest lecturer at the Department of Psychology of Yan'an University, and what I want to eat most now is the coffee donuts at the gate of the school."

I don't know which girl screamed in the back row: "Ms. Shao, I would buy you a car of donuts!!!"

Then there was a burst of laughter.

Shao Lin smiled and said "thank you".

After being disturbed by her, the atmosphere in the entire auditorium suddenly became lively, and many students started chatting about the topic.

This ice-breaking interaction bought time for the police.

At this moment, all the exits of the Elizabeth Hall have been controlled by the police.At the same time, the police officers with bluetooth detectors successfully locked on a boy in the middle of the second row and pulled him out alone.

The young man wears black-framed glasses, looks like a thin bamboo pole, and is a little hunchbacked, but has a baby face, and he is very student-like.

Yan Jingjing glanced at him coldly: "Unlock the phone, hand it over."

The boy honestly handed in his mobile phone, but his face was blank: "What's wrong with my mobile phone?"

Yan Jingjing quickly scanned the apps installed in his phone, they were all commonly used by college students, there were no suspicious looking apps, and, in the last few hours, there hadn't been any incoming calls.

However, according to the Bluetooth address, the microphone was hacked just now, and the device was indeed connected.Yan Jingjing couldn't help frowning: "Just now, when Teacher Zhuang's microphone was silent, did you experience any strange phenomena on your phone? Or, have you downloaded any programs recently?"

"Strange phenomenon? No?" The boy still didn't understand, so he blinked innocently, "There is an app for downloading, I downloaded that."

As he spoke, he pointed to the water-blue advertisement posted on both sides of the auditorium. The slogan said "Meet in June, graduation moment", and a QR code surrounded by single poses of men and women below. "Photo Booth" is a photography company officially cooperated by Yanda University. After downloading the APP, you can view photos of various graduation activities, and make reservations for your own single graduation photos, girlfriend photos, etc.For example, today's event, according to the original itinerary, will have a photo session with the speaker at the end, and there will always be staff in the photo booth below.

The boy stammered and added: "There is also a place to enter and enter the door."

It's not just the place to enter the door. The graduation season activities have just started, and similar leaflets are posted everywhere in Yan'an University. In order to promote the APP, the company can only participate in the full discount discount if you order the graduation package from the APP.

Shao Lin stepped forward to touch it, but felt a thin layer of bumps on the advertising paper - he tapped it lightly with his fingernails, and the original QR code was covered with a new layer of QR code!The APP downloaded by scanning the new QR code is exactly the same as the icon of the "Photo Booth" APP. Clicking on it is also the interface of the home page of the photo booth, but this is basically a virus software in a shell!

Yan Jingjing tried to scan it with her mobile phone, and found that the first thing she did after downloading was to ask whether the app could open the phone's "album" permission. Take full control of the phone...

Shao Lin sighed softly, saying that with this ability, he could do nothing wrong.

The boy who was accidentally hacked was stunned: "No wonder I haven't been able to get the full discount coupon for the package after I successfully registered. I thought it was a lie!"

Yan Jingjing raised her forehead immediately, brother, your phone has been hacked, why do you still care about those few discount coupons!

The police searched around and found that all the QR codes of the photo booth advertisements near the Elizabeth Hall had been lost, but according to colleagues who were still patrolling the gate guards, on the bulletin board at the school gate there, "photo booth" The QR code of the APP has not been dropped.

In other words, the murderer had been to the school very early, and very specifically chose the Elizabeth Hall.

It's even possible that he's still here.

Xia Yi contacted the second group and gave the order: "At the exit of the Shousi Auditorium, if you don't know your identity, you will not be allowed to let go. If you don't bring your student ID card or the name doesn't match, you will be detained first. Li Fu, you go!" Count the backstage personnel, and no one is missing."

But at this moment, the hostess hurried across the stage.

Suddenly, there was a sound of "Kata" under her feet.The female master of ceremonies stopped and found that the square movable board she stepped on had sunk by five centimeters.

This auditorium is not only used for gatherings, but also a stage for rehearsals of the drama department.In order to perform some dramatic effects, the stage itself is equipped with some mechanisms that can be raised and lowered.The movable board where the hostess is standing now happens to be where a lifting mechanism is located.

At the same time, the big screen behind the host also changed into a text spelled out by black mosaics: You now have 30 minutes to stand still and tell about your crimes.If you take a step away, your feet will explode.

Below the text, a countdown popped up, which has become 29:58.

Shao Lin quickly understood - regardless of whether the explosion was true or not, but this trap was originally designed for Zhuang Zhengyi.Before Zhuang Zhengyi came on stage, the hostess had been walking back and forth in that place all the time, and there was no problem with the activity board at all.It was after Zhuang Zhengyi came to power that this trap was activated, but it caught the wrong target by mistake.

Therefore, when Zhuang Zhengyi gave a speech, the murderer must still be there.

However, the auditorium is now in chaos.

"Crime? What crime? A bomb under the hostess' feet?"

"Don't be a joke, right? It's too much to joke about this kind of thing."

"There is a countdown on the screen, it will explode when the time is up, I would rather believe it than believe it, let's go out first, my God!"

"Yes, yes, let's go out first."

And the scream of the female emcee ignited the panic on the scene.I don't know who took the lead, the students started running towards the exit in small groups.But with so many people rushing to the exit at the same time, it is inevitable that they will fall and stampede, you bump into me, I bump into you, like a pot of boiling dumpling soup.

Xia Yi made a decisive decision and fired two bullets at the ceiling. The students were instantly stunned by the gunshots and froze in place.Xia Yi took the opportunity to pick up the loudspeaker and shouted: "This is the West Branch of the Yan'an Public Security Bureau. Please don't run, and leave the venue in order of seating! Please prepare your student ID cards. Students in the first, second and second rows, come from the front. Exit A1 and leave. Students one or two rows from the bottom, please leave through Exit A2 at the back! The remaining students, please continue to sit in your seats, don’t believe in rumors, don’t spread rumors, just wait and leave!”

"What about me? What about me, what should I do!!!" The hostess cried out terribly from the stage, pointing at the big screen helplessly, her voice trembling, "There is, there is, there is a bomb here? "

Xia Yi handed over the evacuation scene to other colleagues, turned his head and ran away, shouting sharply: "Don't move! If you take a step away, it will explode, that's Songfa!" He ran to the stage and repeated: "I Go and check to see if there is really a bomb, don't be afraid, just stand for a while!"

Dou Da's teardrops flowed down like a broken thread, and the hostess was trying very hard to control her emotions.She tried to nod, but her whole body was shaking uncontrollably, so that she couldn't be sure whether her feet could still be pressed against that board.

But at this moment, she was supported from behind.

"Don't be afraid." Shao Lin's voice seemed to have the power to comfort people's hearts.The hostess breathed a sigh of relief trembling.

And Shao Lin took her shoulders with one hand, and stepped on her feet.He stared at the sunken thickness of the square plate, and said, "Remove the force slowly, and I will step on it. Don't be afraid, as long as this plate doesn't rise, everything will be fine."

It wasn't until this time that Xia Yi realized that the bottom of the stage was actually hollow.When no one is using the lift, that space serves as a storage room for folding chairs, musical instruments, and props.For this speech, the lifts were completely unused, so they remained locked.

But now, as soon as Xia Yi opened the back door of the stage, he saw Qin Liang crossing his legs, sitting on a huge musical instrument box, with a notebook lit beside him.He has been hiding in those big boxes, as long as the boxes are closed, under the dark stage, there will be no suspicion at all!

But now, Qin Liang had a mocking smile on his face: "Don't investigate, officer, it's a real bomb, and there are two more. The combined power is not very powerful, and it will blow up two floors at most. The first The first bomb is a loose spring fuze. As long as the person on it does not move, it will not explode. The second bomb, which is the one next to it, is electronically controlled. If you don't let me go, three and ten minutes Then it will explode."

"However, there is a car parked outside the school gate. As long as you let me get back into the car, the electronic terminal here will not be activated. Rather than saying it is a bomb, it is better to say that it is my insurance for leaving."

"Well, make a deal?"