The city wants to recover more than $130,000 that was spent investigating Smollett's claim of a racist and homophobic attack in January. Police later said that claim was bogus.
The case could go to trial by next year.
WATCH: Video shows Jussie Smollett with rope around his neck
CPD releases hours of video in Jussie Smollett case
Meanwhile, special prosecutor Dan Webb is investigating the decision by Cook County State's Attorney Kim Foxx's to drop charges.
Smollett was charged with staging the attack in Chicago's Streeterville neighborhood in January. Police and prosecutors said Smollett orchestrated the attack with the help of two brothers. One brother was an extra on "Empire" and the other was Smollett's personal trainer.
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All charges against Smollett were dropped in late February in exchange for community service and forfeiture of his $10,000 bond payment.
Previous coverage:
Judge in Smollett case rules to keep Dan Webb as special prosecutor after concerns of possible conflict of interest
Jussie Smollett case: Documents show special prosecutor Dan Webb made donation to Cook County State's Attorney Kim Foxx
Jussie Smollett case: PR firm says 'every iota' of 'Empire' actor's claim true; police differ
Dan Webb appointed special prosecutor in 'Empire' actor's case
Jussie Smollett case: Hearing held on Chicago's lawsuit against 'Empire' actor
'Empire' filming in Chicago near Jussie Smollett alleged attack site
Jussie Smollett: Judge dismisses motions by 'Empire' actor's attorneys
Jussie Smollett: Attorneys decline special prosecutor role in actor's case, report says