Civil Action No.: 08 C 4834. January 11, 2010 MEMORANDUM OPINION AND ORDER SUZANNE CONLON, District Judge Derrick Haynes, Thomas M. Perconti, Charles B. Hill, and Fred Rogers (collectively "plaintiffs") are mentally ill pre-trial detainees at the Cook County Jail who allegedly have been deprived of mental health treatment, humane confinement conditions, adequate grievance procedures, and access to the courts. In a purported class action, they sue Cook County, Cook County Sheriff Thomas Dart, and