Inside the coal mine pit!

Shen Ting filmed a bomb at the scene and showed it to Lu Guotao.

When Lu Guotao saw the bomb, he was much calmer than the two previous riot police officers.

"Yes, the wiring is indeed quite messy, and there are quite a few trick buttons."

It is indeed a sandwich-style metal shell.

"Team Leader Shen, could you take a picture of the overall condition of the metal casing and show it to me?"

"no problem!"

Shen Ting took a few shots of the bombs buried in the rubble.

"How is Brother Lu?"

Have you found anything?

Can this bomb be defused?

Lu Guotao did not answer the question directly, but suddenly changed the subject:

"Team Leader Shen, have you ever heard of the bomb maniac?"

Bomber?

Shen Ting was stunned for a moment.

He had indeed heard of the name.

In the cases I've reviewed before, the spy repeatedly used bombs as a means of attack.

Sometimes it's for the purpose of killing!

Sometimes it's to create panic.

Sometimes it's for the purpose of controlling the target.

Some explosion sites will leave the letters BFE.

Therefore, Interpol believes that one member of the spy network is highly skilled at making bombs.

They called the other party a bomb maniac!

When Shen Ting speculated that the instigator of this case was the spy, he actually suspected that the bomb was the work of a bomb maniac.

"Brother Lu, I've heard of that name before."

Is this bomb really connected to the bomb maniac?

"It must be his 'masterpiece'."

Lu Guotao's originally calm and even voice suddenly became a bit dry:

"When I was studying at Interpol, I handled cases involving bomb thugs."

Together with several colleagues, they successfully detonated a bomb belonging to a bomb maniac.

His method of making bombs is very similar to the bomb in front of us.

Bomb fanatics also like to wrap their bombs in square metal boxes.

The distinctive, hand-welded marks are also characteristic of this bomb-obsessed individual.

"So, Brother Lu, can you handle this bomb?"

Shen Ting suddenly had hope.

"It's hard to say, let's observe further!"

There are many ideas for making bombs.

Just because it was successfully demolished before doesn't mean it can be done again.

Over the next few minutes, Shen Ting carefully showed Lu Guotao the details of the bomb, as requested.

After pondering for a moment, Lu Guotao hesitated and said:

"The bombs designed by the bomb maniac were complex, but I've never seen one this complex before."

The bomb in front of him was clearly his meticulously designed masterpiece.

And it's so big!

It has features like a level and a buoyancy switch, which is perfectly normal.

but!

Although it's quite difficult, there's still hope of demolishing it.

"Sandwich shell, buoyancy switch and level."

These three are probably the most troublesome issues right now.

What should we do?

Shen Ting humbly sought his advice.

Lu Guotao pondered and said:

"The buoyancy switch is easy to handle."

Its existence is to prevent us from using the liquid infusion method.

Then we can simply omit the usual water and foam.

If subsequent injection is required, a special quick-setting foam should be selected.

Injecting water or foam into a bomb can disable its mechanism.

Therefore, bomb designers would design buoyancy switches.

Once the liquid enters the bomb, it triggers the buoyancy switch, causing the bomb to detonate.

"The level is a bit tricky!"

Lu Guotao pondered and said:

"The level used by the bomb maniac is very accurate; it is usually a mercury level."

The bomb will be triggered if it tilts slightly or changes position.

My experience is that we use cryogenic agents such as liquid nitrogen to precisely and rapidly freeze the outer part of the bomb where the level is located.

It causes mercury or other liquids to solidify and temporarily lose their fluidity.

This way, the level will not be triggered by slight tilting or vibration of the casing.

Lu Guotao emphasized:

"Controlling the level is the first step in bomb disposal."

Otherwise, any subsequent bomb disposal operation could cause the bomb to explode.

As for the sandwich shell, that's the trickiest part, but I actually have the most experience dealing with it.

Because the more skilled suspects I've encountered all use sandwich shells when making bombs.

The most common method is to use linear cutting explosives.

Without disassembling the outer casing, it uses precise micro-explosions to instantly sever the fuse and warhead.

However, the bomb has a level inside, so even if it is frozen, it is not completely ineffective.

The vibrations caused by a micro-explosion, if too intense, could also trigger it.

Therefore, the risk is relatively high.

Other methods include cryogenic freezing and strong electromagnetic interference.

It can cause temporary failure of the internal mechanical structure, but achieving permanent failure is also very difficult.

Shen Ting's eyes lit up:

"Temporarily ineffective is fine too!"

"While it's still ineffective, just move the bomb out of the mine and detonate it in a deserted place, wouldn't that solve the problem?"

"I'm afraid that won't work!"

Lu Guotao directly denied it:

"Didn't you hear what the suspect said in the video?"

Six hours later, the bomb will explode, killing all seven missing people on the inside.

Do you think that even the most powerful bomb in front of you can penetrate this pile of rubble and hit the missing person on the other side?

"Brother Lu, do you mean there are bombs on the other side too?"

And it's somewhat related to the bombs here.

"If we remove the bombs on our side, the bombs on the other side might explode immediately?"

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