U.S. Immigration and Customs Enforcement (“ICE”) is the investigative arm of the U.S. Department of Homeland Security. Its primary mission is to enforce federal laws governing border control, customs, trade and immigration. Created in 2003, ICE is a relatively new agency but is also one of the largest, with more than 20,000 employees in offices in all 50 states and 48 foreign countries, and an annual budget of more than $5.7 billion.