Mayor of D.C. reaffirmed that D.C. police will not cooperate with ICE in determining local residents' immigration status.

On October 19, 2011, D.C. Mayor reaffirmed that District police will not cooperate with Immigration and Customs Enforcement (ICE), leaving it up to federal immigration officials to determine on their own whether a resident is in the country illegally. Under the new guidelines, D.C. police and corrections officials will not ask those they come in contact with about their immigration status; and will not enforce an ICE detainer or warrant issued against someone who has not committed another crime.

http://www.washingtonpost.com/local/dc-politics/dc-wont-cooperate-with-federal-immigration-enforcement-mayor-says/2011/10/19/gIQAznSpyL_story.html