Questions regarding Rules

[Humla]

If I hear someone equip ammo how should I react? Lets say I am a police officer and I hear the ammo sound, can I taze them before the pull the gun out? Seeing as in real life you need to pull out the magazine to equip ammo into it. You, however, still need to load the gun in game after you equipped the ammo, thats why its confusing to me.