NATIONAL SEX OFFENDER REGISTRY New Hires Data Has Potential for Updating Addresses of Convicted Sex Offenders ... To help track the location of sex offenders, law enforcement officials have turned to other sources of information, such as state departments of motor vehicles and commercial databases. Previous GAO work suggests that the National Directory of New Hires (NDNH) has been useful for the purposes of verifying eligibility for federal benefit programs and collecting debt owed to the federal government, and is a timely source of information.4 The NDNH is a database maintained by the Office of Child Support Enforcement (OCSE) within...