The Postville Raid was a raid at the Agriprocessors Inc. kosher slaughterhouse and meat packing plant in Postville, Iowa, USA, on May 12, 2008, executed by the U.S. Immigration and Customs Enforcement (ICE) division of the Department of Homeland Security together with other agencies. The raid was the largest single raid of a workplace in U.S. history until that date, and resulted in nearly 400 arrests of immigrant workers with false identity papers who were charged with identity theft, document fraud, use of stolen social security numbers, and related offenses. Some 300 workers were convicted on document fraud charges within four days. The majority served a five-month prison sentence before being deported.