The Trump administration began implementing a pilot program Monday to collect DNA samples from certain migrants and immigrants in immigration custody, including teenagers and green card holders. Border Patrol in Detroit and Customs and Border Protection (CBP) personnel at the Eagle Pass, Texas port of entry have been instructed to collect DNA from certain migrants. The biometric information would be used to create profiles in a massive national criminal database run by the FBI. DHS officials said those who refuse to consent to the new DNA collection efforts could be referred for criminal prosecution.