Cornell law professor Sherry F. Colb describes how the U.S. Supreme Court purported to allow the state of Kansas to substitute one insanity defense for another, but in fact approved its abolishment of the insanity defense altogether. Colb explains the difference between the insanity defense—an affirmative defense to the commission of a crime—and facts that negate mens rea—the mental element of a crime. Colb also notes how in dissent, Justice Stephen Breyer made a case for veganism, albeit probably inadvertently.
Cornell law professor Sherry F. Colb comments on the insanity defense, considering when and why juries (and others) might perceive a criminal defendant to be not guilty by reason of insanity. Colb proposes that if a criminal defendant’s mental illness looks like an outside force that made him behave in an out-of-character fashion, then the jury is more likely to find him not guilty by reason of insanity.
