Proportionality and the Aggressor's Culpability in Self-Defense

This article address two subjects that have been treated at length by Professor fletcher. The first is whether justified self-defense demands only the aggressor's anti-social conduct (and act that threatens harm to the victim's protected interest, with any mental element), or whether it also requires the aggressor's culpability. The between or not justified self-defense requires proportionality between the harm prevented and the harm inflicted, in the sense that the prevention of harm cannot be achieved by causing harm that is completely disproportionate.