Apparently you are prone to call cops "jack-booted thugs" and ignore the fact that the guy had been observed beating his daughter while driving and had skidded to a halt on the side of the road.
No, I call SOME cops "jack-booted thugs"---because they are. Ask any officer you happen to know well whether their "brother officers" sometimes abuse their authority--the answer might surprise you.
As to your assertions about "beating his daughter", the article says ZIP about that, or ANY grounds for suspicion by the officer.