In the United States, the vast majority of the states are applying offense-based registries, leaving the actual risk level of the offender and severity of the offense uncertain. Adam Walsh Child Protection and List of sex offenders in lancaster california Act.
Authorized police use ANCOR to monitor persons convicted of child sex offences and other specified offences once they have served their sentence. On 1 March 2011, there were 12,596 registered offenders across Australia. The public does not have access to the registry. Since 2001, the Province of Ontario operates its own sex offender registry concurrently with the federal registry. Unlike the federal registry which has an opt-out provision if an offender can convince a judge they are not a threat, the Ontario registry has no such provision. India is launching a sex offender registry in September 2018.