Robert A. Heinlein said this quote

there used to be, dirtside, a legal defenses called diminished capacity and not guilty by reason on insanity. These concepts would bewilder a Loonie. In Luna City a man would necessarily be of diminished mental capacity to even think about rape; to carry one out would be the strongest possible proof of insanity - but among Loonies such mental disorders would not gain a rapist any sympathy. loonies do not psychoanalyze a rapist; they kill him. Now. Fast. Brutally.