This report provides an analysis of immigration enforcement within the United States. The report opens with a definition of immigration enforcement, a discussion of the statutory authority to conduct immigration enforcement, and an overview of immigration enforcement related legislation since 1986. It follows with an exposition on the dichotomy of interior and border enforcement. The report then details different aspects of immigration enforcement in the United States including detention and removal, alien smuggling and trafficking, document and benefit fraud, worksite enforcement, inspections at ports of entry, and patrolling the border between ports of entry. The report continues with a discussion of the role of state and local law enforcement in the enforcement of immigration laws. The report then presents a comparative analysis of the resources devoted to divergent immigration enforcement activities. It concludes with a discussion of crosscutting immigration enforcement issues related to the structure of the Department of Homeland Security.

This report covers the North American Free Trade Agreement (NAFTA), and U.S.-Mexico drug trafficking. It also looks at migration, environmental issues, legislation in the 111th Congress, and the relationship between the Obama Administration and Mexico.

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