School resource officer Chris Weaver watches over students during a passing period on Thursday, January 31, 2013, at West Aurora High School. | Jeff Cagle~For Sun-Times Media
Receptionist Mary Scholl takes a visitor's driver's license to scan on Wednesday, January 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times MediaJanuary 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times Media
Receptionist Mary Scholl scans a visitor's driver's license on Wednesday, January 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times Media
January 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times Media
School resource officer Chris Weaver watches over students during a passing period on Thursday, January 31, 2013, at West Aurora High School. | Jeff Cagle~For Sun-Times Media
West Aurora High School's resource officer Chris Weaver works on a report in his office at the high school on Thursday, January 31, 2013. | Jeff Cagle~For Sun-Times Media
School resource officer Chris Weaver watches over students during a passing period on Thursday, January 31, 2013, at West Aurora High School. | Jeff Cagle~For Sun-Times Media
West Aurora High School's resource officer Chris Weaver watches over security camera footage with members of the high school's security team on Thursday, January 31, 2013. | Jeff Cagle~For Sun-Times Media
West Aurora High School's resource officer Chris Weaver watches over security camera footage in the high school's security office on Thursday, January 31, 2013. | Jeff Cagle~For Sun-Times Media
Receptionist Mary Scholl checks the results after scanning a visitor's driver's license on Wednesday, January 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times MediaJanuary 24, 2013. Several weeks ago, Kaneland High School installed a check-in system that scans a driver's license and notifies the receptionist if the visitor is on the sex offender registries. | Steven Buyansky~Sun-Times Media
Entering Kaneland High School as a parent or visitor now means submitting to a background check-in-miniature. Just to get in the door requires a buzzer system. And as of three weeks ago, visitors are being required to hand over a drivers license or other identification …
