New York City’s Department of Corrections and New York Police Department in 2017 violated the city’s own policy that requires law enforcement to honor federal immigration requests and turn over illegal immigrants who have been convicted of certain crimes, several U.S. Immigration and Customs Enforcement officials told the Washington Examiner.

Although New York City is a sanctuary city — a place where local lawmakers block law enforcement from handing over illegal immigrants to federal immigration agents — that policy is not without exceptions.