b. Rules for closed investigations.

Open.  See 5 ILCS 140/7(1)(d)(i); Day v. City of Chicago, 388 Ill. App. 3d 70, 80, 902 N.E.2d 1144, 1153 (1st Dist. 2009) (city could not invoke ongoing investigation exemption where it had provided no evidence that this murder investigation remained open and where perpetrator had been convicted 14 years prior).