Where an administrative department issues a subpoena for documents relevant to a reported violation, the subpoenaed entity must comply, even if the records demanded are already available to the administrative body and an assertion that the subpoena was unnecessary does not serve as grounds to seek injunctive relief.The Illinois Appellate Court, 1st District, affirmed the decision of Cook County Chancery Judge Kathleen M. Pantle. On Sept. 9, 2013, the city of Chicago business affairs and consumer protection department …