The Structure of the Law

This lesson answers no legal question. It teaches the six questions, because self-defense, recording and scanner law are all state law, and a general answer is worse than none.

Imminence: was the threat happening now? Force is justified against an immediate threat, not one that has passed and not one feared later. A completed assault is a police matter; a threatened future one is a protective-order matter.

Some state codes use a looser test than strict common-law imminence: Delaware's asks whether force was “immediately necessary” to protect against unlawful force “on the present occasion.” Which version your state uses is a real difference.

Proportionality: was the force no greater than the threat? Deadly force generally requires a reasonably perceived threat of death or serious bodily injury. Property is treated very differently from persons — deadly force to protect property alone is heavily restricted and often unavailable; a few states (for example Texas §9.42) allow it in narrow, listed cases. Check your state's code.

Reasonableness: did you believe it, and would a reasonable person in your situation have believed it? Most American doctrine applies both halves, the structure New York's highest court applied in People v. Goetz in 1986.

Retreat: were you required to withdraw if you safely could? This is the variable that differs most between states, with the castle doctrine as the near-universal exception inside the home.

A systematic review of twenty-five studies found expansions of these laws associated with no change to small increases in violent crime. In Florida, it found robust increases in homicide and documented racial disparities in outcomes by victim race. An earlier study of castle-doctrine expansions found increased homicide without deterrent effect on burglary or robbery.

That is a policy finding, not advice for a moment — but anyone who tells you the legal architecture comes free is not reading the research.

Who is being defended: self, another, or property — with property by far the most restricted.

And finally: criminal and civil are two systems. An act found justified criminally does not automatically end civil exposure.

Some statutes bundle civil immunity; many do not. People routinely research only half of their own state's answer.