This is relevant, for example, in decisions regarding allocation of federal resources aimed at registry improvements or expanded enforcement efforts. Perhaps more critically, SORN is ostensibly intended to facilitate tracking and monitoring of sex offenders within the community. Beyond these questions regarding the RSO population, another set of unanswered questions concerns the scope and operations of the registries themselves. Goals of the Current Study In the context of these issues, the current study was designed to build upon the nascent research literature regarding the scope of U. Missing, Absconded, and Noncompliant Sex Offenders Another key fixture in the SORN policy dialogue, and one particularly prone to obfuscation, involves the issue of RSOs who are missing, absconded, or noncompliant with registration requirements. As such, it is vital to distinguish between RSOs who are living in the community within a given jurisdiction and those who are not. House of Representatives Committee on the Judiciary, Department of Justice with developing and enforcing national guide- lines designed to instill greater uniformity in SORN systems across states, territories, and tribal jurisdictions. Method In July , the authors developed a list of contacts at agencies that were statutorily charged with administration of state sex offender registries. How is this population distributed across offense types, risk levels, and other salient variables? Of the 57 jurisdic- tions reporting, NCMEC reported that 38 of these included in their totals those RSOs who were incarcerated, deported, or had moved to another state. Considering these factors, an aggregate count by state has limited practical utility for practitioners, policy makers, and the public, whereas a more com- plete picture of RSOs across risk and management levels would provide a far more revelatory picture. Marshals service to track and apprehend fugitive sex offenders. In the public policy domain, statis- tics associated with the registries are routinely used for purposes of framing problems, allocating resources, and making operational decisions. Since the mids, an emerging body of research has begun to analyze the impacts of state-level SORN systems. At the offender level, assigned status on a sex offender registry may be utilized to determine restrictions on residence and employment, or may trigger electronic moni- toring or other supervision requirements. In contrast with this perception, data suggest that sex offenders represent a diverse population and that most convicted sex offenders in the United States are not repeat offenders Bureau of Justice Statistics, ; Sandler et al.