Article Summary Immigration enforcement is increasing in the Chicago area as two top federal officials came to Chicago on Tuesday to participate in immigration raids. Encounters with immigration officials have turned tense after one man was killed during a traffic stop and a U.S. citizen was detained during a raid. The federal government is significantly ramping up immigration enforcement in the Chicago area as a specialized federal law enforcement team arrived in Chicago on Tuesday. JB Pritzker said federal officials are not communicating with Illinois law enforcement groups, which he argued is making their work more dangerous. Illinois law prohibits law enforcement from participating in civil immigration enforcement, but it does not outright ban communication between state and federal agencies.