She went to prison over her boyfriend’s child abuse. Thirteen years after he got out, she’s free.

As a teenager, Tondalao Hall survived a violent relationship — one that ended only after she was arrested and imprisoned for not reporting her boyfriend’s abuse of their children. Now, after 15 years behind bars, she is free.

Hall’s sentence, issued under Oklahoma’s controversial “failure to protect” laws, was far harsher than the one given to her boyfriend, Robert Braxton Jr., who abused Hall and her children. He served two years in jail. The disparity has been seen as an example of the criminal justice system bungling cases of intimate-partner violence.