Immigration and Customs Enforcement Detainer Memorandum December 27, 2012 Easter & DeVore On December 21, 2012, John Morton, Director of U.S. Immigration and Customs Enforcement, issued a memorandum providing guidance on the use of ICE detainees. The memorandum can be seen here: ICE detainer-policy Memo 12-21-12 Categories: Criminal Law Share On: