Satellite-based monitoring (SBM) is a form of long-term electronic surveillance imposed by the courts in certain criminal cases involving sex offenses in North Carolina. Although it shares some similarities with electronic monitoring during probation, SBM is not limited to a period of court supervision. It can continue for years after release from prison and, in some cases, may be imposed for life.
The purpose of satellite-based monitoring is to track the physical location of convicted offenders who are deemed to pose a higher risk of committing further offenses, particularly those involving minors or repeated sexual conduct. Since its adoption, the program has been revised in response to evolving legal challenges and constitutional concerns. As of late 2023, the laws governing SBM have changed again, lengthening some monitoring periods and clarifying eligibility standards.
This post explains what SBM is, who qualifies for it, how courts determine the length of monitoring, and what daily life looks like for those subject to the program. It also addresses the legal and constitutional context that shapes how North Carolina applies this form of surveillance.