"The offender tracking system standard defines minimum performance requirements and test methods for location and tracking systems used by law enforcement and correction officers to monitor and communicate the whereabouts of offenders within the community.
The standard covers not just a single component (e.g., the electronic device that tracks an individual sometimes referred to as the ‘ankle bracelet’) but rather the entire system, including support systems for signals carrying GPS, the monitoring center, communication between the tracking device and the monitoring center, and information systems to handle the data."