Federal immigration agents make arrests in Chicago and West Chicago with sightings in several other suburbsFederal immigration enforcement agents made arrests in Chicago and the suburb of West Chicago on Monday, while others were spotted in west suburban Aurora, officials and two state lawmakers said. At some point, she said there were “probably over five” arrests, though she said that was not confirmed independently by federal or local law enforcement. Well, the US Congress has tasked ICE and other federal agents to enforce federal law and detain those illegally present in the US. Bruce Rauner, local law enforcement is prohibited from working with federal authorities on immigration enforcement. Local and state law enforcement are required to help detain people who have broken federal laws.