A statement emailed Wednesday follows a city filing Monday defending its lawsuit seeking to recoup costs of investigating what it says was a January publicity stunt.
The statement says "every iota of information ... Smollett has stated has been fully corroborated."
WATCH: Timeline of key moments in alleged attack on Jussie Smollett
Jussie Smollett case: Timeline of key moments in alleged attack on 'Empire' actor
The statement didn't say what evidence allegedly backs Smollett's claim that masked men hurling racist and homophobic insults beat him and looped a noose around his neck.
The city says GPS data, video and other evidence prove Smollett paid the men to fake a hate crime.
WATCH: Video shows Jussie Smollett with rope around his neck
CPD releases hours of video in Jussie Smollett case
Smollett was accused of staging an attack on himself 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.
All charges against Smollett were dropped in late February in exchange for community service and forfeiture of his $10,000 bond payment.
WATCH: Dan Webb speaks on appointment as special prosecutor in Jussie Smollett case
Dan Webb speaks after being appointed special prosecutor in Jussie Smollett case
Last week, former U.S. Attorney Dan Webb was appointed as a special prosecutor to investigate Smollett and Cook County State's Attorney Kim Foxx's handling of the case.
ABC-OTV contributed to this report
Previous coverage:
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
Jussie Smollett news: 'Empire' actor's attorneys argue against special prosecutor, want judge replaced
Jussie Smollett's attorneys argue for Chicago lawsuit to be moved to federal court
Chicago police release investigative files, video of alleged staged attack on 'Empire' actor
Judge orders special prosecutor to review Jussie Smollett case
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