Normally, there is no expectation of privacy in your physical appearance, so if you are in public, just about anyone may take a photograph of you. There are no absolutes and as with most things there are exceptions, however, most of us have no recourse to being photographed by anyone in public.
I would assume the subjects the detective was interested were arrested for their prior offense and booking photos would be on file as well as DMV photos if they have government issued IDs. If the detective needed current photographs, there are other methods that he could have used to obtain them. The public defender acted predictably and I hope everyone notes that she behaved exactly as she should have once she was advised that she was under arrest and to turn around and place her hands behind her back. No one was injured during that arrest. Her racial background played no factor as far as I could tell. The issue will be addressed in a courtroom. Everyone goes home that night and no one ended up in a hospital or morgue.
Be safe.