What Are The Protective Properties Of Body Armor?

As far as police body armor is concerned, its main function can only be to prevent low-speed and medium-speed bullets-pistol bullets from hurting the police's body at a certain distance. But putting on a bulletproof vest is not like entering a safe, and you can be unscathed no matter how much the gun fires you, because bulletproof vests have certain bulletproof properties under certain limited conditions. Let's introduce the protective performance of police body armor.
According to the material, bulletproof vests are divided into soft, hard, and combination of soft and hard. Under normal circumstances, the bulletproof performance is gradually enhanced, but the weight is also gradually increased. When performing tasks, police officers from various countries are often reluctant to wear bulky composite body armors that have good protective properties for the convenience and flexibility of movement, and are more willing to wear lightweight soft body armors.
However, due to technical reasons, the soft body armor currently equipped in various countries cannot achieve 100% bulletproof. At present, bulletproof vests are basically tested according to the US NIJ0101.04 standard for V50 testing in bulletproof tests. That is, when the penetration probability of the bulletproof vest is 50%, the shooting distance of this standard is generally 5 to 15 meters. Relevant data show that based on this standard, my country's police body armor lined with steel plates can generally protect against pistol bullets of various calibers at a distance of 5 meters and a speed of 300 to 450 meters per second. Soft body armor cannot protect against steel core bullets. Provide effective protection. But this does not mean that my country's body armor standards are low, because even the Belgian FNP series body armor, which is famous for its bulletproof performance, can only protect against pistol bullets of various calibers beyond 3 meters.
American body armor, known for its high technology and high standards, cannot guarantee 100% bulletproof. According to media reports, a certain type of body armor that is said to be able to prevent pistol fire from 7.5 cm away and is equipped with more than 200,000 police officers in the United States was sold out in 10 years in 2003. He was pierced by bullets twice within a day, killing one policeman and injuring the other. Of course, the conclusions of the investigation are all objective reasons: when the body armor was broken down, it was not worn and used within the effective data of the body armor protection standard.
This article mainly introduces the protective performance of police body armor. Based on the above analysis, it can be seen that there are many potential factors why the body armor was penetrated by a "Glock" pistol in an anti-drug incident. The main factor is the short distance when being hit. Just like the American body armor that can block pistol shots from 7.5 centimeters away, one of them did not prevent bullets because the criminal's shooting distance was only 2.5 centimeters. In addition, the use of steel core bullets by drug dealers also greatly increases the probability of body armor being penetrated.