The Department of Homeland Security detained and administratively arrested 28 undocumented immigrants in Fort Pierce on Wednesday. CBS12 reports that agents served a search warrant at 9 a.m. to TentLogix, a tent rental company that provides large scale items for events. A worker told CBS12 many employees lack papers that would allow them to work legally in the United States. At this time, deportation is not a certainty, as the department wants to investigate the possibility of human trafficking, authorities said.