This abusive behavior has gone on for years. Google “police grab/beat/throw woman” and pages of images and stories will appear.

Police rage against women should not be a surprise. …

Research suggests that family violence is two to four times higher in the law-enforcement community than in the general population….. …..

As the National Center for Women and Policing noted in a heavily footnoted information sheet, “Two studies have found that at least 40 percent of police officer families experience domestic violence, in contrast to 10 percent of families in the general population

Daily Kos They wanted her to flinch, beg, to break as they used police batons on her. She would not.