Information Week has an interesting article entitled, Tracking Parolees Using Databases.
From the article:
The Interstate Commission for Adult Offender Supervision plans to create a centralized database by end of the year to help the state and local law enforcement keep tabs on the approximately 250,000 parolees and criminal offenders serving probation nationwide who are given permission to move between states. The database and accompanying management tools will also be used to provide victims with more timely, accurate information about their cases.
Source: Legal Technology Blog