It is important to note that police and military body armor is used to protect and deter bodily injury. For example, bulletproof vests are not a 100% guarantee that the wearer will not get hurt by a projectile, ballistic vests are there as an extra barrier to entry.BulletProofME Body Armor - Ballistic Protection LevelsA 'bulletproof' vest or other armor will protect you from the vast majority of pistol ballistic threats you are ever likely to face. But there is always a tradeoff between more protection and more wearability (and the constraint to stay within your budget). Please know
It is vital when choosing body armor to make sure that it adheres to the proper protection levels. While there are many different standards for ballistics protection levels, the two most commonly recognized standards for body armor come from the US National Institute of Justice (NIJ) and the UK Centre for Applied Science and Technology (CAST, formerly HOSDB).