State officials say they're trying to catch up with a sex offender registry system that is seriously backlogged.

Sexual predators who are considered likely to commit more sex crimes are required under a state law passed in 2006 to update their sex offender registration twice yearly and wear a GPS monitor.

Five analysts at the Georgia Bureau of Investigation are currently working through 4,300 pending cases -- while also getting anywhere from 120 to 150 new cases a month.

Tracy Alvord, executive director of the Sex Offender Registration Review Board, estimates that about 258 of the 4,300 backlogged offender cases are probably sexually dangerous predators.

Tags: Georgia Bureau of Investigation, GBI, sex offender registry, registered sex offender