1. 18 U.S.C. § 4247-4248. (2012).
2. 42 Pa. Cons. Stat. Ann. § 6401-6402 (West, Westlaw through Regular Session Act 2013-72).
3. Adam Walsh Child Protection and Safety Act of 2006, Pub. L. No. 109–248, 120 Stat. 587. (2006).
4. Ariz. Rev. Stat. Ann. § 36-3701. (2012).
5. Barnickol, L. (2000). Missouri’s sexually violent predator law. Journal of Law and Policy, 4, 321–339.