Without a doubt, it was the worst day in Cindy Hahn ‘s life; a daughter of a retired police officer and mother of two young children; both whom were in the car with her that terrible day in 2013 – watching their mother get repeatedly punched and kneed by police officers in Southern California.

Also watching were several witnesses, including a few recording the two Carlsbad police officers piling on top of the woman, punching her repeatedly, kneeing her in the face as she lets out blood-curdling screams.

“Help me. Help me, please,” she sobbed.

That video surfaced two years later, leading to the San Diego District Attorney’s Office to drop felony charges of battery on a police officer and resisting arrest she was facing.

Now she is suing.

Her son, left traumatized, still talks about it.

“The only thing that he’ll talk to me about is, ‘I couldn’t protect you, Mom. I could’ve. I could’ve got him off you. I could have helped you,’ ” she told CBS Los Angeles. 

The incident took place July 31, 2013 when she came across an officer standing in front of a car with a blaring alarm.

She asked what was going on. He asked if it was her car. She said no.

“Then mind your fucking business,” he told her.

Shocked and angered, she called the Carlsbad Police Department to complain about the police officer.

She also pulled out her phone and began recording and he continued to insult her using profane language, according to CBS Los Angeles, but that video has not surfaced yet.

Then she got in her car and tried to leave, which was when the officer pulled her over, accusing her of a seat belt violation.

Next thing she knew, she was on the ground with him on top of her. Two more cops came speeding up in their cars with one of the officers running up and punching and kneeing her in the face as the third cop tried to keep a woman from recording closely.

The two Southern California cops, Jody Knisley and Kenyatte Valentine, are now named in her lawsuit she recently filed against the Carlsbad Police Department.