Oct 7, 2010 8:30 AM by Associated Press
A company that provides electronic monitoring to track sex offenders, parolees and others says its system shut down after unexpectedly hitting its data storage limit. That left authorities across 49 states unaware of offenders' movement for about 12 hours.
BI Incorporated spokesman Jock Waldo says that prisons and other agencies couldn't get notifications on about 16,000 people Tuesday after the system hit its more than 2 billion-record threshold.
Tracking devices were recording movement, but the agencies couldn't immediately view the data.
In Wisconsin, about 140 sex offenders were detained until GPS tracking was back up.
Waldo says the Boulder, Colo.-based company has substantially increased its data storage capacity and hasn't heard of safety issues because of the outage.