A defendant who admits to having committed an offense may nevertheless be acquitted if he can provide a legally cognizable justification or excuse for his actions by raising an affirmative defense. This article explains how affirmative defenses generate social benefits in the form of avoided...

In a criminal trial, a jury may observe characteristics about the defendant (or victim) and use them to form a belief on the likelihood of guilt. Many evidentiary rules attempt to limit this inference. If jury beliefs are rational, such rules may be counterproductive. Any prohibition on the use...