Human trafficking is a transnational crime whose victims include men, women, and children and may involve violations of labour, immigration, antislavery, and other criminal laws. To ensure punishment of traffickers and protection of victims, Congress passed the Trafficking Victims Protection Act of 2000 (TVPA), which is subject to reauthorization in 2007. The Departments of Justice (DOJ) and Homeland Security (DHS) lead federal investigations and prosecutions of trafficking crimes. This book discusses (1) key activities federal agencies have undertaken to combat human trafficking crimes, (2) federal efforts to co-ordinate investigations and prosecutions of these crimes, and (3) how the Bureau of Justice Assistance (BJA) supported federally funded state and local human trafficking task forces.