On December 2, 2009, Human Rights Watch issued a report on the transfer of immigrants to remote detention centers in the U.S. The report finds that the practice of the Immigration and Customs Enforcement (ICE) agency to transfer immigrants to detention centers far away from their homes severely hinders their ability to challenge their deportation.
The report's findings are based on the new data and interviews with officials, immigration lawyers, detainees, and their family members. The data show that 53% of the 1.4 million transfers have taken place since 2006. Most of these transfers occur between state and local jails that contract with Immigration and Customs Enforcement to provide detention bed space.
You can see the link to the full report at http://www.hrw.org/en/node/86789. You can also read the press release issued by Human Rights Watch at http://www.hrw.org/en/news/2009/11/30/us-remote-detainee-lockups-hinder-justice.