Since about ten years ago, in Taiwan, there have been booming legislative and administrative activities for female equality and protection. Sexual offence prevention policy is one the most important issues in the trend. Severe sexual crimes shocked society. Media abounds with reports and comments on sexual offenders. Statutes and regulations regarding sexual offence prevention have been revised frequently. Law governs people based on its understanding of human nature. The evolution of sexual offence prevention policy especially involves re-configuring sexual offenders' human nature.