Smith v. Doe, 538 U.S. 84 (2003), was a court case in the United States which questioned the constitutionality of the Alaska Sex Offender Registration Act's retroactive requirements. Under the Act, any sex offender must register with the Department of Corrections or local law enforcement within one business day of entering the state. This information is forwarded to the Department of Public Safety, which maintains a public database. Fingerprints, social security number, anticipated change of address, and medical treatment after the offense are kept confidential. The offender's name, aliases, address, photograph, physical description, driver's license number, motor vehicle identification numbers, place of employment, date of birth, crime, date and place of conviction, and length and conditi