In 1947,
California became the first state in the United States to have a sex offender registration program.
C. Don Field was prompted by the
Black Dahlia murder case to introduce a bill calling for the formation of a sex offender registry; California became the first U.S. state to make this mandatory. In 1990,
Washington state began community notification of its most dangerous sex offenders, making it the first state to ever make any sex offender information publicly available. Prior to 1994, only a few states required convicted sex offenders to register their addresses with local law enforcement. The 1990s saw the emergence of several cases of brutal violent sexual offenses against children. Crimes like those of
Westley Allan Dodd,
Earl Kenneth Shriner and
Jesse Timmendequas were highly publicized. As a result, public policies began to focus on protecting public from
stranger danger. Since the early 1990s, several state and federal laws, often named after victims, have been enacted as a response to public outrage generated by highly publicized, but statistically very rare, violent predatory sex crimes against children by strangers. Another high-profile case, abuse and
murder of Megan Kanka led to modification of Jacob Wetterling Act.
Megan's Law of 1996 ; sex offender-free districts appeared as a result of
Megan's Law. In 1994, 7-year-old
Megan Kanka from
Hamilton Township, Mercer County, New Jersey was raped and killed by a recidivist
sex offender. Jesse Timmendequas, who had been convicted of two previous sex crimes against children, lured Megan in his house and raped and killed her. Megan's mother, Maureen Kanka, started to lobby to change the laws, arguing that registration established by the Wetterling Act was insufficient for community protection. Maureen Kanka's goal was to mandate community notification, which under the Wetterling Act had been at the discretion of law enforcement. She said that if she had known that a sex offender lived across the street, Megan would still be alive. In 1994,
New Jersey enacted
Megan's Law. In 1996, President
Bill Clinton enacted a federal version of Megan's Law, as an amendment to the Jacob Wetterling Act. The amendment required all states to implement Registration and Community Notification Laws by the end of 1997. Prior to Megan's death, only 5 states had laws requiring sex offenders to register their personal information with law enforcement. On August 5, 1996
Massachusetts was the last state to enact its version of Megan's Law.
Adam Walsh Act of 2006 ; evidence indicated he killed Adam Walsh, and he confessed but then recanted. The most comprehensive legislation related to the supervision and management of sex offenders is the
Adam Walsh Act (AWA), named after
Adam Walsh, who was kidnapped from a
Florida shopping mall and killed in 1981, when he was 6 years old. The AWA was signed on the 25th anniversary of his abduction; efforts to establish a national registry was led by
John Walsh, Adam's father. One of the significant components of the AWA is the Sex Offender Registration and Notification Act (SORNA). SORNA provides uniform minimum guidelines for registration of sex offenders, regardless of the state they live in. SORNA requires states to widen the number of covered offenses and to include certain classes of juvenile offenders. Prior to SORNA, states were granted latitude in the methods to differentiate offender management levels. Whereas many states had adopted to use structured
risk assessment tools classification to distinguish "high risk" from "low risk" individuals, SORNA mandates such distinctions to be made solely on the basis of the governing offense. States are allowed, and often do, exceed the minimum requirements. Scholars have warned that the classification system required under Adam Walsh Act is less sophisticated than risk-based approach previously adopted in certain states. Extension in number of covered offenses and making the amendments apply
retroactively under SORNA requirements expanded the registries by as much as 500% in some states. All states were required to comply with SORNA minimum guidelines by July 2009 or risk losing 10% of their funding through the
Byrne program. ==Registration==