It&#x27;s pretty much the same justification for the sex offender registry. Everybody knows that all people who commit sex crimes are not fully human, but vicious monsters incapable of feeling guilt or remorse [citation needed, but don&#x27;t expect one forthcoming] so for public safety purposes we must deny their freedoms, keep them on a very tight leash, and effectively prevent them from functioning normally in society again. SORs have stood up to Eighth Amendment scrutiny because the courts understand them not as <i>punishments</i> but as <i>public safety measures</i> like mandatory muzzles for pit bulls.<p>This is the same thing, except without that pesky conviction. Convictions for rape are hard to acquire, so as a prophylactic measure we&#x27;ll put him on the leash anyway. You only need a conviction to <i>punish</i> someone but this is a <i>public safety measure</i>.