A key part of the program is a bracelet -- already used by the Glendale Police Department -- that emits a signal to law enforcement to help find someone who is missing.
The bracelet is not constantly monitored, a statement from County Supervisor Janice Hahn's office said, but if its wearer goes missing, caretakers can inform the Sheriff's Department who will use helicopter-mounted receivers to locate the missing person.
The program already has a 100 percent success rate in Glendale, the statement said, and registering the bracelet is voluntary.