Officer Corey Deanes, 47, is accused of making "inappropriate physical contact" with three women on three separate occasions between Aug. 28, 2017 and July 13, 2018.
Deanes was arrested on Tuesday, after he was identified by all three victims, police said.
He was charged with one count of felony aggravated battery in a public place, three counts of felony official misconduct and two counts of misdemeanor battery.
His bail was set at $200,000 during a hearing Wednesday at the Leighton Criminal Courthouse. He was relieved of his police powers in the summer of 2018 after the third allegation against him.
The victims reported behaviors including hugging them without consent, touching their buttocks through their clothes, demanding their phone numbers, and asking where they lived while promising to come back to "check up on them," prosecutors said in court documents. All three incidents took place in Lincoln Park.
All three victims said in their reports to police that Deanes made them feel uncomfortable and unsafe, and each promptly reported the incidents to their local police precinct or the Civilian Office of Police Accountability, court documents said.
Prosecutors said that during each incident, Deans was in full police uniform and driving a marked police vehicle.
The Chicago Police Department tweeted a statement from Chicago Police Superintendent Eddie Johnson:
"The allegations against Corey Deanes are egregious and if proven, they are an insult to everyone of us that dedicates our lives to public service. This investigation was conducted with the full cooperation from victims by CPDs Bureau of Internal Affairs and is a testament to our ability to police ourselves. There is no place in this department for illegal activity and I won't stand for it."
Today we arrested Chicago Police Officer Corey Deanes for very serious charges of aggravated battery for inappropriate physical contact with female victims. Below is a statement from Superintendent Eddie Johnson on the severity of these allegations. pic.twitter.com/Yy1A2Vg8xT— Anthony Guglielmi (@AJGuglielmi) May 8, 2019
Deanes' police background includes a 10-day suspension in 2011 for a personnel violation against a female, but no details were given. He also faced complaints about use of force.
The Sun-Times Media Wire contributed to this report.