Below you will find an index of commonly used definitions. As we mentioned previously, you shouldn’t feel pressured to memorize them immediately; rather, come back to them often when you come across an unfamiliar term while you are reading through this manual.
Ability, Opportunity, Jeopardy
Generally speaking, there are three elements that must be present to justify lethal force are Ability, Opportunity, and Jeopardy.
In some states, you must clearly be able to prove that there was little or no reassemble hope of a safe escape or retreat, or by doing so you would have jeopardized the lives and safety of others.
Ability – Your adversary must clearly demonstrate that he has the ability to kill or cause serious bodily injury, whether that be through the use of weapons, disparity of numbers, size or demonstrated skills such as martial arts (which you must be aware of beforehand).
That is, if your adversary was armed, and not showing that he was armed (concealed carry), or was a black belt in some killer martial art form, you cannot learn of this fact after the fight and use that as part of your defense in a court of law.
Opportunity – Your adversary must clearly have the opportunity to kill or cause serious bodily injury immediately.That is, he must be within range without intervening objects or circumstances, which would prevent him from carrying out an immediate attack whereby he could kill or cause serious bodily injury.