It seems to be a universally accepted fact that a person has the right to defend themselves against the perceived threat of bodily harm or death, even when the force used in defense would normally considered to be crime to do so.
Many laws vary from state to state, this article is giving a general overview, and an attorney should always be consulted in any legal issue.
Findlaw defines the argument of self-defense as: “The right to prevent suffering force or violence through the use of a sufficient level of counteracting force or violence”. 
This may seem like a straight-forward means of defense, but it rarely is. There are many questions that surround this definition and need to be answered in each case. What is considered a sufficient level of force? At what point has the perceived victim gone beyond that point? Could and/or should the person first attempted to retreat? What if the victim provoked the attack? What if the threat wasn’t really there? This defense is more complicated that it seems on the surface.
The use of self-defense must be similar to the level of threat in question. In other words, a person can only use as much force as needed to stop or remove the threat. A victim cannot kill a person for slapping them across the face.
Self-defense justifies the use of force when it is used in response to an immediate threat, but one must stop using force once the threat has ended. Any use of force by the victim after this point is considered to be retaliation and not self-defense.
Some states say the victim should first make an attempt to avoid the violence before using forces, but many have removed this clause and the “stand your ground” defense can be used.
The state of Florida condones the stand your ground defense and can be found in statute 776.012, which states:
…a person who uses or threatens to use force in accordance with this subsection does not have the duty to retreat before using or threating to use such force.
A person is justified in using or threatening to use deadly force if he or she reasonably believes that using or threatening to use such force is necessary to prevent imminent death or great bodily harm…
As stated earlier, the laws have many interpretations to each person and each situation, and an attorney should always be consulted when a person is being charged with a crime. The Law Offices of Travis Koon are Florida attorneys that understand the ins and outs of Florida law, with offices located in Lake City, Miami, and Gainesville. Call us today if you need legal consultation or have questions regarding your case.