Are you sure about that lawyer who spoke up? To be 'duly outraged' that would be saying he was required to be outraged, or proper to be outraged.
Quite possibly he was "dually outraged" which would mean he was outraged on two sides. Side one being that the cops acted in such a behavior and side two that the judge dropped the charges meaning he loses a bunch of revenue opportunity.

My guess is that he 'dually outraged', but just my guess.