sentences:  Victim Notification System
  
  A Victim Notification System (VNS), Crime Victim Notification (CVN) or Statewide Automated Victim Notification Service (SAVNS) is a computer-controlled system by which victims of federal crimes are informed about the release of or the escape of the offender(s) who perpetrated that crime.In the United States, the VNS is operated by the Federal Bureau of Investigation, the U.S. Attorney's Offices, and the Federal Bureau of Prisons.