42 U.S.C. § 16941 : The Public Health And Welfare — Child Protection And Safety — Sex Offender Registration And Notification — Improving Federal Criminal Law Enforcement To Ensure Sex Offender Compliance With Registration And Notification Requirements And Protection Of Children From Violent Predators — Federal Assistance With Respect To Violations Of Registration Requirements

The Attorney General shall use the resources of Federal law enforcement, including the United States Marshals Service, to assist jurisdictions in locating and apprehending sex offenders who violate sex offender registration requirements. For the purposes of section 566(e)(1)(B) of title 28, a sex offender who violates a sex offender registration requirement shall be deemed a fugitive.

There are authorized to be appropriated such sums as may be necessary for fiscal years 2007 through 2009 to implement this section.