Security screening is very necessary.

Security checks can prevent criminals from using aircraft as a means of transportation to engage in illegal smuggling activities and use aircraft to carry out attacks.

On the other hand, even the average passenger takes the plane normally. It will also cause potential safety hazards because you don't know what items you can't carry. Unlike cars or trains, airplanes have an outrageously low margin for error. If there is an accident, it is likely to make world headlines on the same day.

After lunch at the company, Ye Qing asked the purchasing department to go to Shanghai to purchase several sets of the most advanced security equipment in China.

Shanghai is not only the financial center of China, but also an important part of the world's finance. More than 1,000 international conferences are held in Shanghai every year, and there are more important events led by the government and private enterprises than in autumn.

Here, security equipment has become the most important link to ensure the normal holding of conference activities.

The world's well-known security equipment companies do not set up a flagship store in Shanghai to display their own brands, which can be described as having a hole in the brain.

Security X-ray machine leader Smith Heyman.

CEIA, the world's first handheld metal detector, was developed.

Millimeter-wave security gates are widely used in American airports.

These security equipment companies not only put their most advanced equipment in the exhibition hall for guests to enjoy and test, they are also keen to participate in any security-related technology exhibition.

The next day, the purchasing department brought two containers of equipment.

The equipment was taken over by the monsters and transported to the underground laboratory. Now Ye Qing and Dianjing are standing in front of the equipment that has been installed and debugged, testing with various "suspicious" items.

A knife hidden in a comb, a bayonet disguised as a pen, a solid contraband stuffed inside electronics, a sharp object made with a belt buckle.

The most common camouflage method in these airports, in front of the X-ray transmission intelligent imaging detector purchased by the company, does not need to stare at it, the machine itself will mark the suspicious object and send an alarm.

"Luggage detection is not a big problem, and these X-ray machines can automatically determine whether an object is suspicious based on its density and shape. If ordinary passengers carry suitcases for check-in, under normal circumstances, most of the time should be wasted on check-in. Ye Qing is standing in front of a Smith Heyman SCAN6040i optical machine, which is widely used in airport security equipment.

It has a CT 3D image function, and can even detect the atomic number of the item to determine whether there is an explosive object in the suitcase.

Before boarding the aircraft, a passenger is required to check in items that are out of specification or cannot be carried into the cabin. Compared with cabin carry-on, the security standard of checked luggage is much more relaxed, and even some flammable lotion can be put in.

Ye Qing felt that the focus of technological improvement should be on passengers' belongings.

"The owner...... You're fooling around like this for a few moments, and it's over?" Compared with the optimistic Ye Qing, Dianjing has a lot of objections.

"These contraband, even the most old-fashioned X-ray machine, with a security inspector can see with their eyes, right?" As the electrocrystal spoke, a large number of inexplicable electric lights flashed on his face, "If I am an outlaw, how can I use these old-fashioned methods?"

"Then what method will you use?" Ye Qing asked curiously.

Electrocrystalline left a "wait for me for a while" and ran away, and when it went and returned, it already had an extra suitcase in its hand.

Under Ye Qing's gaze, the suitcase of the electrocrystalline successfully passed the detection of the X-ray machine, not only did the equipment not alarm, Ye Qing stared at the X-ray negatives on the computer monitor, and there was no suspicion.

A few overalls, a comb, a thermos cup, a laptop.

But when the electrocrystalline opened the box, the comb that showed normal under the optical machine was pulled open by the electrocrystalline slightly, and it was a sharp blade that used the comb handle as a camouflage and the blade was hidden in the comb body.

Looking at the color of the material, it is obviously a gadget that the electrocrystal has just printed with a liquid printer.

This blade is special, it is not a metal blade that is unusually sensitive under an X-ray machine.

Rather, it is a plastic fiber knife printed from a hard fiber material, not metal, but just as sharp and unusually sharp. Ye Qing used it to cut the white overalls, but the overalls were cut very easily.

"Fiberglass knives, carbon fiber knives, plastic knives, as long as you use your hands and feet on the material, there are good materials for making knives everywhere. As he spoke, he opened the thermos cup, which was also normal under the light machine. As a result, there are still several small parts made of transparent materials hidden in the thermos cup.

Once assembled, the small parts had been transformed into the shape of a simple single-shot pistol.

"Time was short, and these were typed with liquid printers. As long as there is enough time, using a carbon fiber compressed gas cylinder disguised as cosmetics as a power, this pistol can be fired continuously, and the bullets are simpler, with necklace beads. After the introduction, the electrocrystal was a little proud.

When the X-ray machine penetrates the metal material of the thermos cup, it will inevitably miss the very low-density plastic products inside. Under the light machine, the thermos cup is completely blank.

In Dianjing's view, human security methods are full of loopholes.

Even if the circuit is simply modified, a mobile phone that can be used normally can become a small explosive combustion device.

Lithium batteries are the best detonation materials.

“……”

"You're raising the bar. Ye Qing was angry and funny, "The baggage compartment on the plane is physically separated from the cabin, even if there are more knives hidden, passengers can't touch them." ”

"Besides, not everyone has your technology and equipment. If you have all this equipment in the laboratory, what kind of knife do you make? Just build a single bazooka and shoot the plane down outside, so that no matter how good the airport security check is, it will not be detected. ”

"But the plastic knife is so simple that it can't be checked out in the suitcase, and it can't be checked out if it's carried in the carry-on luggage. "The electric crystal pouted," the carry-on luggage should be on the X-ray machine, the same equipment, naturally the same test results. ”

Security checks for checked baggage are relaxed, and passengers are particularly strict when they bring carry-on baggage in the cabin.

This is where the most time-consuming part of security checks lies.

Common items such as belts, wallets, and computers should be placed in small baskets and passed through the X-ray machine one by one.

The electrocrystalline is right, the two small items it just made, even if you take it with you and go through the security check one by one, there will be nothing abnormal. The thermos cup can also be found by the security inspector when it is opened, but the comb knife, because the blade and the comb are made of the same material, will not have anything abnormal at all.

Items pass through the X-ray machine, people can't.

X-rays are highly penetrating and can be harmful to the human body. Therefore, passengers should remove all the items that can be removed from their bodies and then go through the security gate alone. In the early stage of some large-scale conference and event, the host city will raise the security level to level 3 or even 4.

All packages are to be opened and visually inspected by security screeners.

The security screener is eager to advise passengers to take off all their clothes and go through the security check, just to prevent passengers who are as brainy as the electric crystal from bringing some things that cannot be detected by X-ray machines and security gates on the plane.

"Then what do you say?" Ye Qing threw the question to the initiator. "It's fast, it's fast, it's not going to be a miss, you can't put people under the X-ray machine, right?"

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