Laws permitting the expungement of criminal convictions are a key component of modern criminal justice reform efforts and have been the subject of a recent upsurge in legislative activity. This debate has been almost entirely devoid of evidence about the laws' effects, in part because the...

The purported purpose of sex offender post-release regulations (e.g., community notification and residency restrictions) is the reduction of sex offender recidivism. On their face, these laws seem well-designed and likely to be effective. A simple economic framework of offender behavior can be...

In recent decades, sex offenders have been the targets of some of the most far-reaching and novel crime legislation in the U.S. Two key innovations have been registration and notification laws which, respectively, require that convicted sex offenders provide valid contact information to law...