From the article: "The refusal by ICE officials to listen to Carrillo’s claims of citizenship appeared to violate an agency policy that requires officers to th

From the article: "The refusal by ICE officials to listen to Carrillo’s claims of citizenship appeared to violate an agency policy that requires officers to thoroughly and quickly investigate such claims" Of course they are not going to release a suspect immediately, but their responsability was to investigate those claims and bring their supperior's attention to them. They were not "following orders", they were going against them.