A sex offender (sexual offender, sex abuser, or sexual abuser) is a person who has committed a sex crime.What constitutes a sex crime differs by culture and legal jurisdiction.Most jurisdictions compile their laws into sections, such as traffic, assault, and sexual.
In the modern world of technology, many jurisdictions are reforming their laws to prevent the over-prosecution of sex offenders and focusing on crimes involving a victim.
The term sexual predator is often used to describe a sex offender or any of the "tier offenders"; however, only the category just below sexually-violent sexual predator is reserved for a severe or repeated sex offender: sexual predator.
In the United States, the Adam Walsh Act (AWA) proposed to provide funding to each jurisdiction which would agree to incorporate its Act into their law.
In the few jurisdictions accepting the agreement, there are Tier I, Tier II, or Tier III sex offenders.
Individuals convicted of petty crimes not covered by the AWA are still liable to abide by the previous regulations denoting them as a sex offender (or habitual sex offender, sexual predator, sexually violent sexual predator, or child-victim offender).
In the United States, the United Kingdom, and other countries, a convicted sex offender is often required to register with the respective jurisdiction's sex offender registry. S., registry databases are often open to the public.