Bodycam footage shows officers forcing their way into Anjanette Young's apartment after smashing the door open.
"You've got the wrong house," a terrified Ms Young can be heard screaming, while clasping a blanket to cover herself.
"I don't even know what you're doing."
The social worker had just got from home from work and was undresssing in her bedroom when the officers used a battering ram and crowbar to burst in.
“It happened so fast, I didn’t have time to put on clothes,” Ms Young said in an interview after news of her ordeal emerged.
Chicago mayor Lori Lightfoot described the February 2019 incident as “completely appalling” after the bodycam video was released earlier this week.
The footage was obtained by local broadcaster WBBM-TV after Ms Young filed a lawsuit against the city’s authorities.
The Chicago Police Department had previously denied a Freedom of Information Act request lodged by Ms Young to gain access to the video, CBS News reported.
Police also filed an emergency request in a federal court to stop CBS Chicago from airing it.
Addressing a news conference on Wednesday, Ms Lightfood described how she felt after watching the video.
"I was completely and totally appalled as a human being, as a black woman and as a parent," she said.
"Ms Young's dignity, that she and all of us deserve, was taken from us and this is simply inexcusable."
The mayor apologised to Ms Young and pledged “full accountability for what took place”.
She said: "I am deeply sorry and troubled that her home was invaded and that she had to face the humiliation and trauma that she suffered. That is just not right.
"It simply should not have happened. And I will make sure that there is full accountability for what took place."
Ms Lightfoot said concerns about officers searching the wrong homes has led to changes in search warrant protocol.
She stressed the city would change its policies to make it easier to release body camera video in similar circumstances.
Ms Young told reporters that, as a private person, seeing the traumatic moment broadcast publicly, was difficult but necessary.
"I want accountability," she said.
"I don't need social media followers, I don't need that type of stuff. Accountability."
