crisis management game.

Chapter 124 Professional EOD (seeking monthly pass)

Gu Ji ignored the bomber's ridicule.

He carefully examined the four display screens in the tennis court, and finally chose the east side for two reasons: it is the largest of the four TV screens; it is located above the main stand.

These two points alone are enough to cause the bombers to take special care of it.

Just as Gu Ji was about to go to check, there was a sudden noise like waves around the venue, and dense dots scattered from the aisle. It turned out that the organizer let the fans into the venue.

Some local water friends in New York in the live broadcast room finally confirmed his location.

Come to the east stand.

Some fans are excitedly looking for their seats, unaware of the terrorist bomb crisis in the New York subway this morning, completely immersed in anticipation of the game.

Gu Ji lowered the brim of his hat and walked through the crowd. When he reached the highest point, he glanced at the security guards and staff next to him, and quietly came to the back of the electronic broadcast monitor.

The main display screen is astonishingly 12.8 meters long and 7.2 meters high. It is spliced ​​by multiple LED displays and fixed with cement and steel frames behind it.

The first thing he checks are the corners of the bracket.

Upon closer inspection, there was indeed an unknown object wrapped in black tape fixed on it, especially in the center of the back panel of the display, there was a bulge nearly four fingers thick.

Gu Ji rushed forward.

Because he was wearing a cleaner's uniform, even if he stepped on the steel frame, the security guards did not step forward to stop him.

He tore off the black tape on the surface, and a yellow postal bag-shaped solid object was immediately exposed underneath, which could be pinched by lightly touching it with his fingers.

It's C4! !
Explosives can be divided into primary explosives, secondary explosives and tertiary explosives according to their sensitivity. Explosives with high sensitivity may detonate with slight bumps, which is difficult to apply in practice. Terrorists need to go through long-distance transportation and installation. Use a very low sensitivity tertiary explosive like C4!

C4 is a plastic explosive, which is composed of explosives, plastic adhesives, plasticizers and labeling agents. The main explosive is RDX, which belongs to high explosives.

Although it is powerful, C4 is very safe to use. Even if it is shot directly at the explosive, it will not explode, and it can only be detonated with a detonator.

Most importantly, it is soft and can be kneaded at will and made into various shapes. It can easily evade X-ray security inspections, and it is difficult for police dogs without specific olfactory training to recognize it. It is often used by terrorists to create attacks.

"Hey, is there something wrong there?"

Maybe he stayed too long, so the security guard asked casually.

Gu Ji didn't answer, but continued to tear off the black fixing tape on it to see if he could remove the main bomb from the TV shelf without alarming the audience.

For bomb disposal experts.

Whenever an explosive is found, the top priority is never to subtract the red and blue lines like in the movie, but to detonate it!

After establishing full-band signal shielding, the EOD personnel often use portable X-ray and other equipment to scan to evaluate the power of the bomb. For explosives with low power, they can directly dismantle them on the spot with a water cannon.

For bombs that are not suitable for on-site disposal, after evaluating that they can be moved, they are transferred to professional explosion-proof tanks or blast pits dug in advance.

Gu Ji didn't have any auxiliary equipment, let alone much time.

The only thing he can rely on now is the tactical field knowledge in his mind.

After carefully peeling off all the fixing tape on the outer layer.

Gu Ji subconsciously took a deep breath.

You should know that the theoretical explosive equivalent of C4 is 1.34, and the detonation velocity can reach 8040m/s, which is more than 400 times the speed of sound. More than 4 grams of C[-] less than one catty can blow up a heavy truck.

And the weight of C4 in front of him may have already exceeded five kilograms. The explosive power of this level is enough to blow up a two-story building!
Not to mention that it was connected to an LED TV, and the high-speed fragments produced during the explosion were even more powerful than ordinary pistol bullets. If it really smashed into the auditorium, at least hundreds of people would be killed or injured! !
This bomber is a fucking lunatic!
"Hey! What the hell are you doing..."

"Immediately evacuate the audience, there is a bomb attack in the venue, get the hydraulic clamp immediately! Notify the New York Police Department's EOD bomb disposal team, hurry up!!"

Faced with the security guard's second call, Gu Ji was forced to adopt the second option.

It is impossible to remove the bomb silently, because the main body of the bomb is bound by a wire lock and fixed on a steel frame. If it is forcibly removed, it is easy to trigger an explosion.

Unexpectedly.

The security guard with a big belly was still stunned after listening, as if he didn't react.

"There's a bomb! A bomb! Stop the game and evacuate the crowd!! There's no time! Quick!"

It wasn't until Gu Jilian gestured and shouted that he noticed the mass of yellow objects on the screen, and the security guard hurriedly picked up the walkie-talkie to report to the upper floor.

[Fuck!The anchor found the bomb so quickly? 】

[Awesome anchor!How did he lock the location of the bomb within ten minutes? 】

【God!It's really inhumane to put a bomb on the field! 】

【Brothers, isn't the focus on 'hydraulic pliers'?Could this anchor be trying to defuse the bomb? 】

[Please open the screen! 】

[Although it is impolite, I really want to see what the bomb looks like! 】

[Art needs cruelty: I didn't expect you to find the bomb so quickly, I hope your luck will continue to be good! 】

Just about two seconds after the bomber finished sending out the barrage, there was a sudden beep on the main board of the bomb.

The next moment, a line of red numbers counted down on the LED display of the motherboard:
4:59 seconds!
[I heard the sound of Didi! 】

【The bomb started? 】

[Nimma, this terrorist really deserves to die!Anchor, run away and let the police deal with these things, you have done enough! 】

[Run, anchor!Don't die!Don't let the bomber win! 】

……

The moment the countdown sound started, the atmosphere in the live broadcast room instantly became tense, and many people were urging Gu Ji to run away quickly.

Not only is the bomb about to explode, but also because there are only a few minutes left before the location exposure, if you don't find a way to escape in advance, you will be locked and surrounded by the police, and you will be dead by then.

It can be said.

The bomber set him up for a dead end! !
"Fuck!"

Gu Jipi cursed, turned around and yelled at the security guard: "Don't fucking report and discuss, the bomb will detonate in 5 minutes, immediately broadcast the evacuation of the crowd, hurry up!!"

"what……"

The security guard's face was pale at the scene, and some spectators who were closer to the LED screen heard the news and wanted to join in the fun and take a look, but Gu Ji called them back.

"Everyone go!!"

After scolding, Gu Ji stared at him and raised his wrist.

There are still 8 minutes before the positioning exposure, and there are more than 4 minutes left before the bomb explodes, and there are nearly 4 minutes of escape time in between.

When tearing off the tape just now, he took a rough look at the circuit of the detonator, and it was not complicated.

It's not that there is no chance of breaking the game.

Gu Ji took a deep breath and abandoned all external influences. In his brown pupils, there was only the flashing red countdown number.

"Drip, drip, drip..."

In the command center, York listened to the countdown to the bomb in the live broadcast room, and couldn't help scolding the bomber for his cruel behavior, "Fack! It's too late for EOD to go by helicopter at this time, connect me to Arthur Mei immediately. The person in charge of the organizer of the tennis court! Immediately!!"

"Yes! Chief!"

While agreeing, the operator browsed the personnel identification information on the screen and made a quick call.

While waiting, York anxiously stared at the barrage in the live broadcast room.

[Fuck!The anchor is so rigid?don't run? 】

[This is to defuse the bomb! 】

[Are all Americans so awesome?Will the whole people defuse bombs? 】

[There are more terrorist attacks there, I guess I learned it from the popular science and safety exchange meeting held by the community or the police station! 】

[This is too far-fetched, right?EOD is not a skill that civilians can master! 】

[Strongly doubt whether the anchor has also received special training, otherwise it would not have been so easy to analyze the identity of the bomber before! 】

[Not to mention anything else, just because he would rather die than escape, he is considered a hero. The police should not arrest him first, but cooperate to deal with the bomber! 】

……

Although there are various barrages in the live broadcast room, York still understands some key information from them.

Indeed, the young suspect did not behave like an associate terrorist.

"Director! The phone call of the person in charge has been connected!"

"Transfer to my phone immediately!"

York temporarily put down his tablet and took out his phone: "Stop the game immediately and evacuate the audience..."

"what……"

"Run!"

"Everyone, don't be crowded! Pay attention to your feet and avoid stampedes!!"

Arthur US Tennis Center Open Court.

Under the double notification of the big screen and the loudspeaker, the audience finally learned that there was a bomb attack in the arena, so they ran desperately to the aisle to escape.

Fortunately, the organizer had already prepared sufficient security personnel for this large-scale event, barely maintaining order.

As for the height of the East End stands.

Except for Gu Ji, there was no one there.

He wiped the sweat from his forehead, his pupils shrank like a wheat awn, staring at every circuit on the circuit board.

It is no exaggeration to say that this is the first time he has been so serious and focused on one thing since he obtained the "Crisis Management Game".

The main thing is that EOD cannot tolerate any mistakes.

If you are not careful, the bomb will be detonated and you will be smashed to pieces.

The structure of the bomb in front of me is very similar to that of the remote-controlled IED bomb in the subway. The vibrating motor is connected to the electronic detonator through the mobile phone, but an extra string is connected to the timer.

So, it's a double detonation bomb.

It can not only be detonated remotely by mobile phone signal, but also can trigger countdown to detonate.

If you want to disarm the bomb without injury, you need to figure out the mechanism of the electric detonator and the circuit.

The filling components in the detonator are igniting powder, priming powder, and detonating powder in sequence, and the former is ignited by the bridge wire made of nickel-cadmium alloy connected to the front end of two wires.

The so-called remote detonation.

No matter what the method is, the ultimate goal is to connect the circuit, impel the detonator detonating charge to explode, and detonate the main body of the explosive.

The main board connected to the electronic detonator in front of me is the "red and blue line mode" that is very common in movies. There is a PNP transistor on the main board, which is divided into emitter E, base B, and collector C.

When the voltages of the former two are similar, the current will be blocked from flowing to point C, but when the former produces a voltage difference greater than 0.6 volts, the current will flow to C, so far the circuit is connected and the detonator is detonated.

All Gu Ji has to do now is to cut one of the red and blue wires to prevent the current from flowing to the collector.

He first found the 12V power supply, and carefully picked out the line with his little finger.

During the whole process, Gu Ji held his breath, for fear that he would accidentally cut the wire and detonate the bomb directly.

Especially the countdown sound of "Dididi", it affects the state of mind very much.

Fortunately, "Baron" is young, with soft and dexterous hands.

Successfully separated two wires from the power supply. The positive lead leads to the red and blue wires, and the negative lead connects to the detonator. The blue wire is connected to the generator E, and the red wire is connected to the base B in series with two resistors, R1 (1kΩ) and R2 (20kΩ). Finally, the detonator is connected to another A wire connects to collector C.

At this point, the circuit board was completely and completely exposed to Gu Ji.

"Hehehe..."

After taking a serious look, he couldn't help but sneered.

The live broadcast room naturally heard it too.

[Can you still laugh at this time? 】

[Did the anchor find a way to crack the bomb? 】

【real or fake?How long has it been, a minute and a half? 】

[Art needs to explode: what are you laughing at? 】

Gu Ji pursed his lips, squinted his eyes and smiled: "I'm sorry, I really couldn't help it, I thought the bomb you set up would be very clever, but I didn't expect it to be so simple, as long as anyone who knows some common sense of physical circuits in high school will understand , the red line seems to be complex and critical, but it is connected in series with resistors."

"Once it is cut off, the voltage at point B will be lowered, and the two poles of E and C will be turned on, detonating the explosives, but there is nothing on the blue line, and it is directly connected to level E. Then I cut it off, and the triode will have no power source. Is it gone?"

The water friends in the live broadcast room were confused, but there were still some masters who understood the principle.

【So simple?It's really the level of domestic high school physical circuit! 】

[Good guy, listening to what you say is like listening to what you say! 】

[Hahaha, I have also learned it, thanks to the anchor science popularization, now I am also a bomb disposal expert! 】

[Everyone, don’t think the anchor’s words are simple. When a bomb is really encountered, it is difficult for ordinary people to have such a calm mind to think about the circuit diagram! 】

[666, mocking the bomber with a backhand? 】

[Anchor Mano, I'm not worried about the bomber killing him at all! 】

……

Gu Ji didn't care whether the bomber responded, and took out a small knife from his pocket.

Before cutting the wires, he carefully checked the circuit board again to see if there were other hidden hidden wires to prevent being overshadowed.

Don't cut the knife until it is confirmed 100% safe.

"drop……"

The bombs stopped.

Gu Ji was finally able to breathe a sigh of relief.

Unexpectedly, the bomber responded at this time:
[Art requires cruelty: Although this bomb is very simple, it is difficult for ordinary people to deal with it calmly within 5 minutes. Maybe you are a genius and born extremely calm; maybe you have also received special training in bomb disposal and are used to seeing explosives. , so very calm and calm;]

[I have to say, I am starting to be interested in you, Barron, maybe you are not as simple as described in the information, I hope you don’t die when you face the next bomb, otherwise I will be very sad Oh, by the way, there are still 5 minutes and 43 seconds before the positioning is exposed. I believe the police should have surrounded the stadium in advance. Good luck! 】

[Barron?The anchor's name is Barron? 】

【This Kumba is too bad!Directly expose the anchor's identity information? 】

[Being an opponent and a referee at the same time, how does this shit play? 】

[Wouldn't it be a bomb designed so hard, let the anchor take it down in a minute, break the defense, right? 】

[The anchor runs quickly!We all support you!The police must not arrest him, or he will die! 】

……

boom!
Just as the audience sent out barrages to support Gu Ji, the explosives on the top of the bracket on the big screen exploded suddenly, and Gu Ji hurriedly kicked off the shelf.

Accompanied by a series of explosions, the huge LED display screen finally fell down.

Gu Ji panted heavily, before he could scold the bomber.

Ears twitched, and in the distant sky, there was a sudden "da da da" sound of helicopter propellers.

It's surrounded by the New York police.

He decisively used [Drone Scouting].

Suddenly, a translucent gray image appeared in the air in front of him, which was the bird's-eye view of the town in Queens, New York where he was currently located. The game system thoughtfully helped him mark all the police and police cars in New York City as flashing red dots.

There were about fifteen or six red dots, which surrounded Arthur's US Open in an arc in all directions, and a police helicopter was even dispatched!

"It's too late, run!"

　I checked more than ten pages of information on this one, and I even found a remote control bomb to analyze the original picture.
　
(End of this chapter)