The emphasis on the right to stand your ground is puzzling in the context of the Martin case, since Zimmerman's defense does not seem to rely on it. The 28-year-old neighborhood watch volunteer, who was released on bail this week after being charged with second-degree murder in connection with the Feb. 26 shooting in Sanford, told police the unarmed teenager knocked him down with a punch to the face and pinned him to the ground, repeatedly smacking his head against the pavement. By Zimmerman's account, then, he had no opportunity to retreat.
Florida's law also has been blamed for delaying Zimmerman's arrest, and it did require that police have probable cause to believe the shooting was unlawful. But this is the same standard that applies to arrests for all other crimes, and whatever obstacle it may have posed proved temporary.
One unusual aspect of Florida's law that will be apparent in this case is that Zimmerman has a right to pretrial hearing at which he can try to convince Judge Kenneth Lester, by "a preponderance of the evidence," that he acted in self-defense. If he can meet that standard of proof, which requires showing it is more likely than not that his use of force was appropriate, the charge against him will be dismissed. But even if he went to trial, he would be (or at least should be) acquitted with that much evidence in his favor, since the prosecution has to prove beyond a reasonable doubt that he was not acting in self-defense -- which, as Northern Kentucky University law professor Michael J.Z. Mannheimer has pointed out, would be true "in virtually every state."
Zimmerman's defense under Florida's law is that he was attacked and "reasonably believed" shooting Martin was "necessary to prevent imminent death or great bodily harm." Contrary to New York Mayor Michael Bloomberg, who is leading a national campaign against Florida-style self-defense laws, that does not mean people "make their own decisions as to whether someone is threatening or not" and therefore have "a license to murder." The threat assessment has to be reasonable, meaning someone who uses deadly force has to show it was justified by the circumstances.