An Austin area couple has filed a federal lawsuit over the Raptor system that aims to notify school officials when a registered sex offender is on campus. Visitors to campuses with the system must submit their driver's licenses to be scanned. If a visitor is a registered sex offender in the system's database, administrators are notified. KTRE reports that the couple, neither of whom are registered sex offenders, say the system violates their right to freely associate with their children and from freedom of unreasonable search and seizure. They are concerned about the Houston-based company collecting their private information. Similar software is used in area districts including Carroll, Eagle Mountain Saginaw, Mansfield and Northwest.