The Maze of Immigration Detention

In the last fifteen years, immigration detention has increased dramatically.  The U.S. government held approximately 6,000 persons in immigration detention on any given day in 1994 compared to 20,000 persons by 2001 and over 32,000 in 2011.  The sharp increase came as a result of the passage of the Illegal Immigration Reform and Immigrant Responsibility Act (IIRIRA) and the Antiterrorism and Effective Death Penalty Act (AEDPA) in 1996, which eliminated the possibility of deportation waivers for certain crimes and created several classes of individuals who are not entitled to release from custody on their own recognizance or after posting bond.

How does someone get into immigration detention?