
Originally Posted by
thegodfather
Every state varies in its law. The generally accepted rule for self-defense in MOST states is that if you 1. Are in a position that you fear for your life, or 2. Are in a position that you feel would result in grievous bodily harm, and/or 3. Protecting an innocent person from death and/or grievous bodily harm.
Then you are allowed to respond using deadly force. It does not specify a gun, but deadly force in any capacity. You are only allowed to respond with an amount of force great enough to stop the threat of death and/or grievous bodily harm. That means, for instance, if you shoot an attacker twice, and he stops his attack, and you continue you to shoot him, then you have violated the law.
There are states which are much more lenient however. For instance, in the state of Texas, deadly force can be used to protect personal property and against the act of trespassing. Meaning, while your life may not be in any danger, if someone is attempting to steal your car in your driveway, you have the right to use deadly force against them in the state of Texas.
Florida, has a no retreat doctrine that was just recently passed. This means, that if someone merely threatens you with death and/or grievous bodily harm, you have the right under Florida law, to repel such a threat with deadly force. Under the law, simply stating to someone "I"m going to slit your throat!..." could result in that person being justified in using deadly force against you. What that person would need to prove in court is, that you actually made that threat, and that they believed you were willing, intent, and capable of carrying it out.