Description: This report discusses the authority of state and local law enforcement to assist in the enforcement of federal immigration law through the investigation and arrest of persons believed to have violated such laws. It describes current provisions in federal law that permit state and local police to enforce immigration law directly, analyzes major cases concerning the ability of states and localities to assist in immigration enforcement, and briefly examines opinions on the issue by the Office of Legal Counsel (OLC) within the Department of Justice.

Description: he increased presence of foreign students in graduate science and engineering programs and in the scientific workforce has been and continues to be of concern to some in the scientific community. Enrollment of U.S. citizens in graduate science and engineering programs has not kept pace with that of foreign students in those programs. The scientific community has been divided over proposals to impose stricter immigration limits on people with scientific and technical skills. Attempts to settle upon the balance between the needs for a highly skilled scientific and technical workforce, and the need to protect and ensure job opportunities, salaries, and working conditions of U.S. scientific personnel, will continue to be debated. This report addresses these issues.

Description: This report synthesizes the multi-tiered debate over immigration reform into key elements: legal immigration; legalization; immigration control; refugees, asylees, and humanitarian migrants; and alien rights, benefits, and responsibilities. It delineates the issues for the 111th Congress on permanent residence, temporary admissions, border security, worksite enforcement, employment eligibility verification, document fraud, criminal aliens, and the grounds for inadmissibility.

Description: The report opens with a discussion of how to analyze the impact of immigrants on the pay and job opportunities of native-born workers. It then uses this framework to examine and interpret the empirical literature on the subject. The report concludes with a discussion of policy implications.

Description: This report synthesizes immigration issues as a multi-tiered debate. It breaks down the U.S. immigration law and policy into key elements: border control and visa security; legal immigration; documentation and verification; interior immigration enforcement; integration, status, and benefits; and refugees and other humanitarian populations. This report also delineates the debate in the 112th Congress for a range of issues, including border security, criminal aliens, and worksite enforcement.