Town leaders previously argued Merrillville is not an appropriate location for an immigration detention facility. Rokita said Merrillville officials crossed the line from expressing opposition into unlawfully interfering with federal immigration efforts. The lawsuit stems from months of public opposition after reports surfaced that Merrillville could become home to an ICE detention facility. "I am requesting a formal written commitment from Opus on their letterhead to commit to no detention facility in town," the email states. What's next:Fox Chicago made several attempts for comment with Merrillville Town Council and the town's attorney, but our requests for comment were not answered.