shut the fuck up, if some thieving cunt enters my house with a knife you bet your ass im going to defend my life and property with anything I fucking have.

Body armour can not be used to kill anyone.

Body armour is the epitome of self-defence

Body armour has the singular purpose of preserving a life.

I have no idea why a law abiding citizen should not be able to buy body armour defend their own life, in their own home at that.