Constitutionality of sex offender registries in the United States

The constitutionality of sex offender registries in the United States has been challenged on a number of state and federal constitutional grounds. While the Supreme Court of the United States has twice upheld sex offender registration laws, in 2015 it vacated a requirement that an offender submit to lifetime ankle-bracelet monitoring, finding it was a Fourth Amendment search that was later ruled constitutionally unreasonable by the state court.

Source: Wikipedia — Constitutionality of sex offender registries in the United States (CC BY-SA 4.0)