Officers in the nation's largest probation department are being bombarded with alerts from GPS ankle monitors which may mask real alarms of danger.
The Los Angeles Times reports Sunday that Los Angeles County probation officers routinely ignore or even delete messages from these monitors because there are so many.
The GPS anklets are strapped onto the highest-risk convicts. Officers have received as many as 1,000 a day. Many warning of a blocked signal or low battery.
Nearly every county in California is preparing to expand their use of these devices to track criminals on the street rather than incarcerate them.
A federal court order requires the state to reduce prison overcrowding. More than 10,000 state inmates and parolees have been shifted to local control in the last two years.