In a method for tracking an offender in possession of a first offender cellular telephone that includes a global positioning system module and for presenting tracking information about first offender to an officer employing an officer communication device, a voiceprint from the first offender is stored on the tangible memory storage device at a server. A set of predetemlined location criteria is generated for the first offender. Location data from the cellular telephone are received at the server and include an indication of a location of the telephone. Offender voice sample data are compared to the voiceprint. An alert is generated when the voice sample fails to match the voiceprint. The offender's location is compared to location criteria for the offender and an alert is generated when the location is inconsistent with predetermined location criteria. The alert is transmitted to the officer communication device.
